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Liu, Hao. "Energy saving through voltage optimisation & non-intrusive load monitoring in domestic house." Thesis, University of Warwick, 2015. http://wrap.warwick.ac.uk/75546/.
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Energy consumption worldwide in domestic domain accounts for almost one third of the total energy consumption so it is important to reduce energy usage in this sector for energy sustainability. The project aims to investigate two domestic energy saving methodologies in domestic sector, namely voltage optimisation and non-intrusive load monitoring. The first method is to address the issues of unnecessarily extra usage of electrical energy caused by excessively high mains voltage. It is achieved via a voltage optimiser to maintain the voltage at a desired constant level. The second method is to make electrical energy usage information more transparent to consumers and identify the potential energy waste caused by misusing energy of devices. This is to be achieved via the methodology of load disaggregation. The mains voltage delivered to individual houses varies constantly depending on the location of the house, the load condition and other factors. The method of installing voltage optimiser in domestic houses to optimise the voltage and reduce energy consumption started from last decade. Most of the existing voltage optimisers do not have very precise voltage control and there is very limit report on the theoretical analysis of them. Therefore, a power electronic based voltage stabiliser for voltage optimisation in domestic house is proposed in this project and an intensive study of proposed voltage stabiliser is carried out in terms of the topology, mathematical modelling and control strategy design. The simulation and experiment results are also presented to verify the proposed voltage stabiliser in this thesis. The current method adopted for analysing energy saving is via comparing the electricity bill of a house before and after the installation of a voltage optimiser. But it is impossible to ensure that the user behaviour and energy usage pattern are exact same in these two cases. The lack of quantitative analysis on energy saving has become a major obstacle to convince people and promote the voltage optimisation in domestic house. This project investigated a method for estimating the energy saving of installing a voltage optimiser in real time. An energy saving algorithm is presented and implemented. A test rig hosting different types of electric loads is established to verify the robustness of this algorithm. The experiment results demonstrate that the presented algorithm can estimate the energy saving achieved by a voltage optimiser in real time with very high accuracy. Non-intrusive load monitoring is to disaggregate the total electricity consumption into individual appliances based on the voltage and current measurement at premise level. Most of the existing approaches require massive training and pre-known dataset to obtain the disaggregated energy breakdown of a house and there is no well accepted approach to monitor the home appliances operation in real time. The project is to explore a new method by which the operations of individual appliances can be monitored in real-time simultaneously. A new load signature is proposed to describe the features of appliances and an event based algorithm is developed in this project. The algorithm is then implemented onto a test rig with 6 different appliances and 11 working modes. The evaluation results demonstrate that the proposed algorithm is able to monitor the operations of individual appliances and feedback the information in real time.
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Choudhury, Meghdeepa. "Pre-renovation considerations for a Swedish single-family house : Analysis of energy saving potential." Thesis, Högskolan i Gävle, Energisystem och byggnadsteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-35883.
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According to United Nations 7th sustainable development goal, increased use of fossil fuels in energy accounts for around 60 percent of total global greenhouse gas emissions and in order to debacle this crisis of global warming, the European Union aimed to reduce energy use by 32.5 % within 2030 by improving energy efficiency. Whereas, the Swedish energy goals include reducing energy use by 50% in 2030 compared to 2005 and at producing 100% electricity from renewable sources by the year 2040. In the year 2018, the housing and service sector contributed to 40 per cent of the total final energy use in Sweden according to energimyndigheten. For this reason, energy conservation in the residential sector is given a priority. Furthermore, the emissions from old houses are much higher compared to that of newly built homes, which demonstrates higher scope of introducing energy efficient renovation measures in Swedish buildings. During the year 1965 to 1976, there was an enormous construction work to build up single family housing areas in Sweden under the million homes program which are now in need of renovation. Therefore, an old single-family villa from million homes program was selected for the purpose of energy efficient renovation.There are different environmental certification systems to assess energy performance of a building which are commonly expressed in terms of kWh/m2 and year. Among them, the seven energy classes from A to G was chosen for building rating in this project. The aim was to improve the current energy rating of the house from D without compromising the indoor air quality and cost effectiveness. At the same time, objective was also set to increase the amount of green energy as fuel for electricity production in the building. At first, a literature review was performed to observe the renovation strategies previously applied in similar projects. A study of the construction used for the million homes villas was also conducted to assess the original construction of the reference villa in Valbo. The research was conducted with the help of energy simulation software IDA ICE and LCC software BELOK Totaltool. The theory behind the application of these software in this project was analyzed in the beginning. Then, the building model was created with the help of building floor plan. The input parameters were set according to the standards of FEBY and Boverket regulations. After forming a base model for the existing construction of the building, different sensitivity analyses were performed with various renovation measures for one month or for one year. The results obtained from the sensitivity analysis helped in choosing the most energy efficient measures for renovation. Then the economic analysis of the model was conducted to investigate the most cost-effective measures. Later on, these expensive measures were omitted from the renovation plan to yield both energy efficient and cost-effective renovation of the villa. Next, the indoor air quality and green footprint in the building were compared before and after renovations. The results indicated that, it was possible to maintain good indoor air quality and increase green energy footprint in the building when the building rating was changed from D to B. In the end, the simulation results were compared with that of the literature review. It was found that both the qualitative and quantitative results have common realizations. Overall, it was possible to reduce the energy consumption in the house by 46.82%.
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Chen, Chen. "Residential Passive House Development In China : Technica lAnd Economic Feasibility Analysis." Thesis, KTH, Bygg- och fastighetsekonomi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48238.
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As the energy price goes up, more and more concern has been focused on the sustainable development of residential houses. One of the best solution will be the low energy housing-passive house. The concept of passive house has been popular in Germany and whole Europe in the last 10 years, however, there is no official residential passive house standard project in China now. In this thesis, the feasibility of developing passive house in China will be analysed. Combined with the mature experience from the passive house project in Europe, a Chinese way of building the passive house will be provided. According to the previous studies, a lot of knowledge of passive house projects in Sweden have been referred to help doing the analysis about the passive house development in China. Due to the fact that there is no passive house had done before in China, the some assumptions have been made to help with the economy analysis. It is assumed that one passive house residential project will be built in Shenyang city, Liaoning Province. After the analysing and calculating, it can be concluded that it is possible and profitable to develop the passive house standard residential projects in China. It has a bright future.
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Bulíček, Jakub. "Analýza vlivu zateplení na obvyklou cenu rodinného domu ve vybrané lokalitě." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-408042.
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The master´s thesis deals with influence of the insulation of the detached house on the costs associated with heating and the effect on the usual price of detached house. In the theoretical part of the thesis are given the basic concepts of heat, the topic of energy intensity of buildings, methods of thermal insulation, types of thermal insulation, the development of thermal properties of burnt brickwork and valuation. In the practical part there are designed variants of economy measures and there are calculations of heat losses of the current state and newly proposed variants. Then follows the energy savings assessment, payback period and the effect on the price of a usual detached house.
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Suamir, I. Nyoman. "Integration of trigeneration and CO2 based refrigeration systems for energy conservation." Thesis, Brunel University, 2012. http://bura.brunel.ac.uk/handle/2438/6971.
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Food retail with large supermarkets consumes significant amounts of energy. The environmental impact is also significant because of the indirect effect from CO2 emissions at the power stations and due to the direct effect arising from refrigerant leakage to the atmosphere. The application of trigeneration (local combined heat, power and refrigeration) can provide substantial improvements in the overall energy efficiency over the conventional supermarket energy approach of separate provision of electrical power and thermal energy. The use of natural refrigerants such as CO2 offers the opportunity to reduce the direct impacts of refrigeration compared to conventional systems employing HFC refrigerants that possess high global warming potential. One approach through which the overall energy efficiency can be increased and the environmental impacts reduced, is through the integration of trigeneration and CO2 refrigeration systems where the cooling generated by the trigeneration system is used to condense the CO2 refrigerant in a cascade arrangement. This research project investigates experimentally and theoretically, through mathematical modelling and simulation, such a system and its potential application to supermarkets. A small size CO2 refrigeration system for low and medium food temperature applications was designed and constructed to enable it to be integrated with an existing trigeneration system in the refrigeration laboratory at Brunel University to form an integrated trigeneration and CO2 refrigeration test facility. Prior to the construction, the design of the system was investigated using mathematical models developed for this purpose. The simulations included the CO2 refrigeration system, CO2 evaporator coils and the integration of the trigeneration and CO2 refrigeration systems. The physical size of the design and component arrangement was also optimised in a 3D AutoCAD model. A series of experimental tests were carried out and the results showed that the medium temperature system could achieve a very good COP, ranging from 32 to 60 due to the low pumping power requirement of the liquid refrigerant. The low temperature system performed with average steady state COP of 4, giving an overall refrigeration system COP in the range between 5.5 and 6. Mathematical models were also developed to investigate the application of the integrated trigeneration and CO2 refrigeration system in a case study supermarket. The models were validated against test results in the laboratory and manufacturers’ data. The fuel utilisation efficiency and environmental impacts of different trigeneration and CO2 refrigeration arrangements were also evaluated. The results indicated that a system comprising of a sub-critical CO2 refrigeration system integrated with a trigeneration system consisting of a micro-turbine based Combined Heat and Power (CHP) unit and ammonia-water absorption refrigeration system could provide energy savings of the order of 15% and CO2 emission savings of the order of 30% compared to conventional supermarket energy systems. Employing a trigeneration system with a natural gas engine based CHP and Lithium Bromide-Water sorption refrigeration system, could offer energy savings of 30% and CO2 emission savings of 43% over a conventional energy system arrangement. Economic analysis of the system has shown a promising payback period of just over 3 years compared to conventional systems.
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Wiberg-Bocek, Sebastian. "Energisparande åtgärder för uppvärmning i en 70-tals villa : Energy-saving measures for heating in a 70-century detached house." Thesis, Växjö University, School of Technology and Design, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-2115.
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Detta examensarbete på 15 högskolepoäng har som syfte att undersöka några åtgärder för minskade uppvärmningskostnader. Då det byggs mycket nytt idag får man inte glömma bort alla befintliga byggnader. Det första steget mot minskad energianvändning är att minimera uppvärmningsbehovet. I detta arbete har vissa utvalda åtgärder beräknats på en 70-tals villa för att se vad man sparar in. Genom mätningar och information från villans byggnadsbeskrivning beräknas byggnadsdelarnas U-värden. Köldbryggor beräknas med datorprogram. Genom vetskap om ortens gradtimmar kan de totala energiförlusterna beräknas, som är transmissionsförluster, köldbryggor och ventilationsförluster. Tillskott från gratisvärme räknas in.
Åtgärder som beräknas är sänkt inomhustemperatur, som är en enkel lösning och inte kräver någon investering av pengar. Sänker man temperaturen i denna villa 1 ºC så sparar man ca. 9% energi varje år, vilket blir 2158 kr per år. Tilläggsisolering av vindsbjälklag är också relativt enkelt. För att uppnå en isoleringstjocklek på 500 mm används lösull. Denna åtgärd ger besparing på 2193 kr varje år vilket ger en återbetalningstid på knappt 6 år med arbete och materialkostnader inräknat. Att byta till nya fönster kostar desto mer och är inte lönsamt om de befintliga fönstren inte är i behov av att bytas ut. De fönster som används är 3-glasfönster med isolerruta. Med ett U-värde på 1,2 fås den lägsta återbetalningstiden på 24 år. Att byta till ett ventilationssystem av typen FTX har för denna villa en återbetalningstid på 10 år vilket är en rimlig åtgärd. Det förutsätter då att ventilationsaggregatet är i drift hela året och inte kräver någon eftervärmning av tilluften.
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Shi, Yang. "Towards sustainable renovation of façades : A case study of additional double glass façade on lamella house from energy saving perspective." Thesis, KTH, Hållbara byggnader, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263621.
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The pace of development in modern society since the Industrial Revolution has beenunprecedented and it keeps proceeding in a more aggressive and accelerated phase. However, thisdevelopment is a highly energy demanded action which is resulting an increased exploitation ofnatural resources, and subsequently, an expanded pressure on our environment, which sometimesconflicts between proprietors. On the other hand, it also creates great opportunities fortechnological developments as well as new research fields. As one of the biggest energy consumers,it is a crucial task that building and real estate sector follow this development trend by inventingand practicing new methods and technologies in order to limit energy usage and increase energyefficiency for a contribution to sustainable development in the society.When considering improvement of energy efficiency of the buildings from the million homeprogramme, it is worth to carry out energy analysis before renovation works begins in order toobtain a holistic overview of the energy issues those buildings are struggling with. For dwellingsfrom almost 50 years ago, one of the biggest issues is the large energy usage for heating due to theheat loss to the ambience through the building’s envelope. More precisely, the heat losses throughroof, walls, windows, doors, ventilations and infiltrations. This thesis will focus on technologicalsolutions that can control the heat losses caused by convection and conduction through the externalwalls, windows and doors, which approximately stands for nearly 55% of the total heat loss for ahouse from the million home programme. Furthermore, with help of passive heating and coolingstrategies, improvement of both energy performance and indoor thermal comfort on the studiedlamellar house from the million home programme will be achieved.According to the simulation results, the installation of double glass façade on the outside of theexternal walls can reduce energy consumption, as well as keep indoor thermal comfort in desirableboundaries. In the simulated executive model, the delivered energy has been reduced to 95.3𝐾𝑊ℎ/𝑚2𝐴𝑡𝑒𝑚𝑝 𝑎𝑛𝑑 𝑦𝑒𝑎𝑟 from the basic model with 121.8 𝐾𝑊ℎ/𝑚2𝐴𝑡𝑒𝑚𝑝 𝑎𝑛𝑑 𝑦𝑒𝑎𝑟. However,In the exclusive model the delivered energy has successfully declined to 71.1 𝐾𝑊ℎ/𝑚2𝐴𝑡𝑒𝑚𝑝 𝑎𝑛𝑑 𝑦𝑒𝑎𝑟 , which is under the maximum permitted value (85.0 𝐾𝑊ℎ/viii𝑚2𝐴𝑡𝑒𝑚𝑝 𝑎𝑛𝑑 𝑦𝑒𝑎𝑟) in the Swedish building code. Both of models has maintained the occupancysatisfaction in adequate boundaries.
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Braida, Giacomo, and Roberto Tomasetig. "Preliminary analysis of the potential energy saving achievable with a predictive control strategy of a heat pump for a single family house." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-240067.
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The present work reports a study related to the potential improvement of the energy performances of a heat pump based heating system for a Swedish single-family house. The analysis is focused on the design of new rule-based control strategies which employ perfect predictions of weather forecast and human behaviour information. In particular, the considered signals are the outdoor temperature, the solar radiation, the internal gain due to inhabitants’ activities and the Domestic Hot Water (DHW) consumption. The study is performed by means of the TRNSYS® simulation software in which the model of the heating system is implemented. More specifically, it is composed by a Ground Source Heat Pump (GSHP) unit, a stratified storage tank of three hundred litres and the building element. The performances of the developed control logics are evaluated using a degree-minute on/off controller as reference case. The results show that the improved control logics yield to an increase of the energy efficiency of the system as well as an enhancement of the indoor and DHW temperatures stability.EffSys Expand P18: Smart Cotnrol Strategies for Heat Pump Systems
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Lattenberg, Marek. "Nízkoenergetická výstavba." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-225959.
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Diploma thesis "Low-energy building" presents low-energy construction trends and their price comparision with conventional contruction. This thesis defines basic low-energy building terms, both building and construction work evaluation concepts and specifics of low-energy construction. Practical outcome is comparision between passive and conventional buildings, including economic appraisal.
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Drkošová, Dominika. "Porovnání vybraných cenových podílů u energeticky úsporných domů." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382184.
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Dlouhý, Tomáš. "Vliv provedení zateplení na rodinném domě v Rokytnici nad Rokytnou." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-232728.
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This diploma thesis deals with insulation of the house and it's costs. First part relates to the developement of the construction, the current trends in the construction of houses, prices of energy and heating options. Next part relates with insulation system Etics, the way of it's implementation and thermal assessment with basic names. Thermal insulation is designed in three variants. The work includes thermal assessment in original condition and the assessment of new condition modified by adding thermal insulation with it's economic return. In conclusion, the diploma thesis evaluates the payback period of insulation options and the effect on price of this house.
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Křeček, David. "Vliv architektonického konceptu na potřebu tepla na vytápění energeticky úsporných budov pro bydlení." Doctoral thesis, Vysoké učení technické v Brně. Fakulta architektury, 2012. http://www.nusl.cz/ntk/nusl-233244.
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Human efforts to increase their comfort rise in density of population in congested city areas, rapid growth of traffic and electric smog created due to constantly transforming communication technologies all resulted in an increase of stress in the immediate human environment. All of this, along with frequent reports about changes in global climate, gradually contributes to an alteration of thinking of the whole society, which is forced to face the consequences of economic damages caused by climatic changes. If we want to tenably assert adequate economic and social living conditions, we have to approach the natural environment in a more profound way. In accordance with the trend of substantional development for the purpose of enhancement of the quality of the living environment in the field of building industry, it is logical to concentrate on buildings, which are conceptually focused on saving of the energy. That is on energy-efficient houses. Pathway to sustainable building is not based on discovering one or several multipurpose technological solutions, but on usage of new designing principles, new materials and methods of processing them as well as new techniques of construction. For an effective creation of a building concept it is essential to have that kind of device which quickly responds to changes performed on a design, enables an easier work on variants and produces the most accurate results. Consistent application of energy optimizing methods is necessary particularly for designs of energy saving houses. Beginning efficient building design is the most “abstract factor of concept linked with very uncertain inputs,” because a lot of parameters in that moment is still unknown. Many mutually connected factors are invoked during designing passive house e.g. trajectory of the sun and the shielding effect of the surroundings, the aspect of sunlight and interior lighting, power quality construction, etc. Currently, the architect has no choice, he can use only well-known precepts, such as large windows are facing the South not the North. Unfortunately this "empirical formula" for the design of a real passive house is not enough. And yet the first draft of the house is most affected by not only its shape, form, but user´s comfortable, cost, feasibility and future energy behavior of buildings and related operating costs of the house too. It is obvious that this stage should not be underestimated, because “minor variation of the initial inputs greatly influence the outcomes.” With this reasoning, the work focuses on early stage design decision, i.e. the architectural concept of a passive house (an idea, vision). Therefore the aim of this work is to simplify the issue into understandable form, i.e. the creation of relatively simple and illustrative sketches, which generalize the issue satisfactorily, show the individual parameters (glazing, shading, shape, size, etc.) and change need of heat for heating passive house. The results of the work will be useful when the architect picks up the pencil and starts to think about his future house. At this point, he will have on hand sketches, which give him an idea and streamline his further design. Therefore the main goal is to create new outcomes and identify energy behaviour of buildings with a computational tool. This research works with virtual idealized mathematical model in the software PHPP 2007 CZ and uses "phenomenon" of parametric equations and sensitivity analysis.
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Ševčíková, Kateřina. "Zpracování projektu fotovoltaického systému." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2011. http://www.nusl.cz/ntk/nusl-216786.
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The diploma thesis deals with elaboration of project solar thermal and photovoltaic solar systems for all-season service. The theoretical part focuses on the general description of the solar thermal and photovoltaic systems, legislation of renewable sources in the Czech Republic and the status of photovoltaics in the Czech Republic. The experimental part deals with the design of measures for energy saving by using solar energy systems. These measures are proposed for construction of houses in Podolí u Brna, especially on extra-family house. The aim of the work is to make a proportioning, choosing the right parts and calculating the economic and ecologic balance. Finally, thesis gives recommendations for further action in saving energy in houses in Podolí u Brna.
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Pospíchalová, Barbora. "Ekonomická analýza optimalizace budov." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392164.
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The Master’s thesis deals with the energy savings of a prefabricated house. In the theoretical part, the issue of investment and risk management are first dealt with. Afterwards, the thesis deals with large panel construction in the Czech Republic, energy performance of buildings, heat losses, and especially methods for invesment appraisal. The main objective of the thesis is the economic analysis and the life-cycle analysis. The case study deals with the calculation of saving on heating the prefabricated house after its refurbishment and calculation of economic indicators.
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Pokorná, Jana. "Vliv provedení zateplení rodinného domu ve Slavicích na výdaje spojené s provozem této nemovitosti." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-233085.
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This master´s thesis deals with insulation of the house and it's costs. First part describes the energy performance of building, different methods of thermal insulation and types of thermal isolation. This thesis evaluates the influence of thermal insulation of residential building design for expenses associated with operating the property. This thesis uncludes thermal technical assessment of the condition of the house and then heat the assessment of the options for the thermal insulation on its economic return. In conclusion, the assessment of individual variants insulation is calculated as a simple payback period and the effect on price of this house.
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Jansson, Sebastian, and Erik Niklasson. "Fuktrelaterade risker vid lågenergikonstruktion i lättbetong : En studie av ett nyproducerat passivhus." Thesis, KTH, Byggteknik och design, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149303.
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Trenden i byggbranschen är att efterfrågan på täta, energisnåla byggnader ökar. Passivhus och andra lågenergikonstruktioner blir vanligare och vanligare. Riskerna med att bygga in organiskt material som trä i dessa konstruktioner har fått branschen att börja titta på alternativa material. Lättbetong är ett material som både har bärande och isolerande egenskaper. Dessutom är det inte organiskt vilket gör det okänsligt för mikrobiell påväxt. Det som är intressant med lättbetong, ur fuktsynpunkt, är att materialet levereras från tillverkare med en stor mängd byggfukt. Våren 2014 färdigställde Bollnäs Bostäder passivhus- projektet Sundsbro i Bollnäs, där lättbetong ingår i utfackningsväggarna. Sett inifrån består väggen av ett tunt lager kc-puts, lättbetong, cellplast, mineralull, kc-baserad grovputs och ytputs. I detta arbete användes projektet i Bollnäs som referensobjekt och en risk- och känslighetsanalys av väggkonstruktionen utfördes. Arbetet utreder risken för fuktrelaterade problem med väggen vid de extra uttorkningsinsatser som vidtogs i referensobjektet och vid normala uttorkningsbetingelser. Vidare utreds vilka parametrar som är viktiga för väggens fuktfunktion och vad man behöver tänka på när man projekterar och bygger i lättbetong. Arbetet har genomförts i samarbete med AK-Konsult Indoor Air AB och deras senior konsult Anders Kumlin. Fuktberäkningsprogrammet WUFI Pro 5.3 har använts för simuleringar. Beräkningarna gjordes endimensionellt på väggkonstruktionen. Resultaten med den ökade uttorkning som utfördes i referensobjektet visar inget högre fuktinnehåll längst ut i väggen på grund av byggfukt från lättbetongen som vandrar utåt. Farhågan var att så skulle kunna ske och att det skulle kunna leda till mögelproblem. Däremot visar resultaten att bygg-fukt från putsen kan fukta upp mineralullen. Det finns dock inga kända skadefall av detta slag och därför dras ändå slutsatsen att konstruktionen är riskfri. Tack vare en förutseende fukt-projektering och väl utförd uttorkning eliminerades risken för mögel. Hade inte dessa åtgärder vidtagits så visar resultaten att en liten mängd byggfukt hade kunnat vandra utåt och kondensera i mineralullen under första vintern. Då hade det funnits risk för mikrobiell påväxt. Detta visar att det är av största vikt att utföra en noggrann fuktprojektering vid byggnation av välisolerade hus i allmänhet och i synnerhet när lättbetong används. Lyckligtvis gjordes detta på ett bra sätt i referensprojektet. Känslighetsanalysen visar att isoleringens diffusionstäthet är avgörande för hur stor del av bygg-fukten som kan vandra utåt och därmed hur stor risken för problem blir. Lägre täthet ger större risk och högre täthet reducerar risken. Resultaten visar också att det är viktigt att inte montera täta skikt på insidan för tidigt. Den allmänna rekommendationen från leverantör är att lättbetongen skall torkas till 15 % fuktkvot på 50 millimeters djup innan målning och tapetsering på insida vägg får ske. Studien visar att detta är ett för högt fukttillstånd om det skikt som appliceras på insida vägg är tätt. Lättbetongen bör torkas till 5 % på 50 millimeters djup innan helt täta skikt kan monteras utan mögelrisk.The trend in the construction industry is that the demand for tight, energy-saving buildings is rising. Passive houses and low energy constructions are becoming more and more common. The risk with using organic material in this type of constructions has made the industry look at alternative materials. Aerated concrete is a material that has both load-bearing and insulating properties. In addition to that it is not organic, which makes it insensitive to microbial growth. What is interesting with aerated concrete, from a moisture point of view, is that the material is delivered from the producer with a large amount of construction moisture. In the spring of 2014, the passive-house project Sundsbro in Bollnäs with aerated concrete in the wall construction, was finished by Bollnäs Bostäder. In this study the project in Bollnäs was used as reference object and a risk- and sensitivity analysis was made. The study examines the risk of moisture related problems with the wall construction during normal dehydration conditions and after the increased dehydration efforts that were taken in the reference project. The study also examines which parameters are important for the moisture function of the wall construction and what you need to think about when you project and build with aerated concrete. The job has been done in cooperation with AK-Konsult Indoor Air AB and their senior consultant Anders Kumlin. The moisture calculation program WUFI Pro 5.3 has been used for simulations. The results with the increased dehydration that was used in the reference project show no increased moisture content in the outer parts of the construction due to construction moisture from the concrete that wanders outwards. The concern was that so could happen and that it would lead to mould problems. However the results show that construction moisture from the exterior plaster can moisten the mineral wool. There are no known damage cases of this sort and therefore the conclusion is that the construction is free of risk. Thanks to a foreseeing moisture projection and a well performed dehydration the risk of mould was eliminated. If these measures would not have been taken, the results show that a small amount of construction moisture could have wandered outwards and condensed inside the mineral wool during the first winter. Then there would have been a risk of microbial growth. This shows that it is very important to carry out a detailed moisture projection when constructing well insulated houses in general and when using aerated concrete in particular. Fortunately this was properly done in the reference project. The sensitivity analysis shows that the diffusion resistance of the insulation decides how much of the construction moisture that can wander outwards and consequently the size of the problem risk. Results also show that it is crucial not to apply sealing layers on the inside of the wall too early. The general recommendation from the supplier is that the aerated concrete should be dried to 15 % moisture ratio on 50 millimeter depth before painting and paper hanging on the interior surface of the wall can be done. The study shows that the concrete still is too damp at that stage if the layer applied on the inside of the wall is impermeable. The concrete should be dried down to 5 % moisture ratio before sealing layers can be applied without mould risk.
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Lepš, Jiří. "Energeticky úsporný dům." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240456.
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The subject of the diploma theses is a energy-saving house. The building is designed in the Náchod cadastral, U Vodojemu street. The building is designed for the permanent housing. There is an 11 residential units. The building is designed of brick construction system ceramic blocks Porotherm. Ceiling structure is made of Porotherm Ceiling. The building is coverd with flat roof.
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Labounek, Martin. "Vliv provedení zateplení rodinného domu na výdaje spojené s jeho provozem." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254235.
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This diploma thesis deals with insulation of the house and it's costs. First part relates to the developement of the construction, the current trends in the construction of houses, prices of energy and heating options. Next part relates with insulation system ETICS, the way of it's implementation and thermal assessment with basic names. Thermal insulation is designed in six variants. The work includes thermal assessment in original condition and the assessment of new condition modified by adding thermal insulation with it's economic return. In conclusion, the diploma thesis evaluates the payback period of insulation.
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Dvořák, Jan. "Analýza vlivu zateplení na cenu bytových jednotek ve Žďáře nad Sázavou." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-232911.
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This thesis analyzes the impact of insulation on the price of flats in Zdar. In the theoretical part of the thesis deals with the theme of energy demand and pricing. The second part sets the prices of selected flats in different valuation methods, namely: direct comparison method, comparative method and cost method. Furthermore, the work deals with energy conservation, depending on the thermal insulation. The aim is to determine whether and by how much prices will rise flats due to the additional insulation, what are the savings in heat and what about payback to investment.
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Rodková, Daniela. "Energeticko-ekonomické hodnocení, a optimalizace, rodinného domu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372287.
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The main content of this thesis is a design and an assessment of energy-saving measures with an objective of energy economical optimization of a particular family house. The theoretical part of the thesis describes problems of the energy performance of the building. The calculating part is devoted to economical and environmental assessment of two solving options with a use of a computer program which enables a monthly calculating measure. One part constitutes a design of air-conditioning systems, heating and drawing up an Energy Performance Certificates. The part of the thesis which is focused on a computer technology application deals with energy performance optimization with a use of a program which enables a daily calculating measure and making models of pictures of flowing with a use of CFD methods.
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Stromecký, Jiří. "Vliv provedení zateplení objektu rodinného domu v obci Újezd u Rosic na výdaje spojené s provozem této nemovitosti." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254198.
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The influence of the thermal insulation of a family house in the village of Újezd u Rosic and the expenses related with the operation of this property. Brief characteristics of the task and its challenges: The task will be to work on a proposal to insulate the chosen property. Based on this proposal, then evaluate the difference in cost for the operation of the property before and after insulation. The work will also evaluate the economic return on the investments made.
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Hanyk, Tomáš. "Vliv provedení zateplení stavby pro rodinou rekreaci na výdaje spojené s jejím provozem." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382186.
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This diploma thesis deals with the impact of thermal insulation on expenses relateted to the operation of the weekend house. Theoretical part describes options of thermal insulation systems, insulation methodes, describes structural prices and costs. Practical part of this thesis describes heat costs on specific weekend house situated in Karlovy Vary region. Thermal insulations are designed in three different variants. Calculation of costs of every designed insulation systém is included in this thesis. In next part of thesis is calculated return of investment for every designed solution. In conclusion of the diploma thesis are compared impacts of thermal insulation on expenses ralated to the operation of the weekend house.
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Shanks, Kirk B. P. "The optimal deployment of energy efficient envelope technologies within the Northern Ireland Housing Executive existing stock." Thesis, University of Ulster, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390608.
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Ryšavá, Veronika. "Energeticky uvědomělá optimalizace budovy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409874.
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The aim of the diploma thesis is to design austerity measures of an apartment building in the form of an energy card. The theoretical part deals with heat pumps. The computational part solves the evaluation of the current state of the building, the proposal of two variants, the assessment in terms of energy and economic and recommendations of the selected variant. There is also an experimental measurement specializing in thermovision imaging. The project contains energy certificates of individual states of the solved object.
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Batrla, Jan. "Vliv provedení zateplení na rodinném domě v obci Karolínka na výdaje spojené s provozem této nemovitosti." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-233054.
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This thesis evaluates the influence of thermal insulation of a detached house on the expenses associated with the operation of the property. The first part describes the construction of houses from history to the present day, as well as legislation associated with the thermal insulation of buildings. The work also deals with the energy performance of buildings, energy price developments, types of thermal isolation and insulation of Houses. Thoroughly analyzes ETICS insulation systém. The second part is devoted to a particular detached house in the village Karolinka to evaluate the economic return on investment. Thermal insulation is solved in seven variants. The work includes thermal technical assessment of the condition of the original house and then heat the assessment of the options for the thermal insulation on its economic return. In conclusion, the assessment of individual variants insulation is calculated as a simple payback period.
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Král, Jakub. "Energeticky efektivní řadový rodinný dům." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227602.
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The aim of my diploma thesis is a design of a new energy efficient terraced house in the gap site. Building has two dwelling unit of category 4+kitchenette and 6+ kitchenette. Building has a cellar, two floors and an attic. The cellar structures and horizontal structures are made of reinforced concrete. Sand-lime bricks are used for masonry. The building is covered with gabled roof with timber roof truss. In this building there are used rainwater and renewable energy in a form of electrical energy made by photovoltaic panels.
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Ramírez, Villegas Ricardo. "Sustainable Renovation and Operation of Family Houses for Improved Climate Efficiency : A Case Study." Thesis, KTH, Industriell ekologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-58628.
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In the developed world, the existing stock of houses will provide shelter to the majority of population in the upcoming years. Houses are physical objects that consume material and energy and need to be maintained, repaired and restructured from time to time. In order to fulfill the requirements of the Kyoto protocol and be comfortable for their inhabitants, the existing stock needs to be renovated. Strong disagreement between different parts of the scientific community and overlapping and contradictory concepts make the definition of sustainable renovation confusing. In this Thesis, therefore, an approach of renovation and operation for higher energy efficiency and lower climate impact has been the main focus. Based on a systems analysis approach, the aim of this work is to develop a manual to stimulate house owners to become role models in sustainable renovation and operation of family houses, the Thesis providing recommendations to reducing the energy consumption of their houses by evaluating cost and benefits of possible actions and choosing the most energy and cost effective approach of a series of alternatives. With the results of this analysis, a sustainable renovation and operation staircase is proposed. The work found that it is possible develop a staircase manual for sustainable renovation and operation of family houses that follows a logical step-by-step approach and could result in considerable life cycle reductions in both costs and climate impact. The work also suggests that it is possible for academic experts to develop material in a simpler form and language to reach the public in a more understandable form.
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Palík, Lukáš. "Experimentální metody v energetickém hodnocení." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227661.
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The final thesis is focused od the experimental metods in energy rating of building. In the first part is described history of energy rating from the eigtheens to the present and described is the current trend of energy rating in terms of energy performance certificates. In the second part is elaborated energy assessment for apartment building from bricks with six residential units. For the building is drawn a total of 6 measures, of which there are 3 structural and 3 for building equipment. The measures are assembled to variants and the resulting variant is recommended, including recommendation. In the last experimental part is described the influence of shading elements on the thermal load of the room and modeled the effect of insulating double glazing and triple the overall energy performance reference room.
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OrdeÑana, Ianire. "REDUCTION OF THE COSTS IN A HOUSE IN VALBO THAT USES ELECTRICITY AS ENERGY SOURCE : Study of the installation of a heat pump or connection to the district heating." Thesis, University of Gävle, Department of Technology and Built Environment, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-593.
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The analyzed building in this project is located in Valbo, 9016 Stiftelsev 6. This house is a property of Gavlegårdarna, and it is being used as a house for disabled people. The building consists on five apartments, with one patient in each apartment. Some social workers help those patients in everything they need, making their living in the house as easy as possible.
The aim of this project is to find out the best option of reducing the energy consumption in this house. There are some alternatives to reduce the energy or the energy costs as; efficiency measures, load management and energy conversion.
This project is focused on the energy conversion for reducing the energy consumption. As it is the best option for obtaining a considerable reduction in the annual costs.
First of all the energy balance of the house is analyzed. By studying the energy balance it is possible to find out how the energy consumption of the house is divided. On one hand there is the heat supplied and on the other hand the heat losses.
As it was said before this project is focused in the reduction of the energy consumption by means of converting to another energy supplying method. Two alternatives have been studied: the installation of a heat pump and the connection to the district heating of Gävle.
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Richter, Christian P. [Verfasser]. "In-house Consumer Study on Dishwashing Habits in Four European Countries: Saving Potentials in Households with Dishwashing machine / Christian P Richter." Aachen : Shaker, 2010. http://d-nb.info/1081885432/34.
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Gerö, Jiří. "Architektonický výraz obytných staveb energeticky efektivní výstavby." Doctoral thesis, Vysoké učení technické v Brně. Fakulta architektury, 2013. http://www.nusl.cz/ntk/nusl-233249.
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These days create an enormous pressure on energy savings because of their high prices. For future it is obvious that their prices will grow. Not only the representatives of European Union realize this fact, but basicaly common people who run their houses and pay the bills. For this reason low - energy houses respectively passive houses are in the limelight. Reasons of economy should not be the only criterion of quality, but its integral part, one of several components. Energy efficient housing is a response in architecture and building to turbulent global warming. The aim of the work is try to specify how to conceive an efficient building with respect to its architectural quality in the contect of directions coming from European Union and which should be implemented soon in the Czech republic. Will zero house become driving force of architecture in Europe in 21st century? The result of the work will be useful in orientation how to conceive an efficient house with respect to its aesthetical quality.
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Polický, Robin. "Vliv provedení zateplení řadových rodinných domů na výdaje spojené s jejich provozem." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-446753.
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The diploma thesis examines the influence of insulation of terraced houses on the expenses associated with their operation. Its first part deals with legislation concerning the issue and evaluation of energy performance of buildings. Furthermore, the types and properties of the used thermal insulation, methods of thermal insulation, types of filling of openings and then the used methods of budgeting are described. The second part contains several variants of insulation of terraced houses, which are assessed in terms of energy intensity and finally in terms of economic return on investment in insulation.
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Maixner, Lukáš. "Posouzení ekonomické efektivnosti nízkoenergetického a pasivního domu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240429.
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The aim of this diploma thesis is to assess the economic efficiency of alow-energy and passive construction. This paper presents problems of lowenergy and passive construction, their individual characteristics, classification, construction materials, evaluation methods and opportunities for economic assessment due to the investment costs of implementation objects. The main practical part focuses on comparing the investment and operating costs for the construction of a standard, low-energy and passive house. Together with this are processed simple labels building. The out come of this diploma thesis is the calculation of returnability increased by the initial investment in the construction of a standard, low-energy and passive house.
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Horák, Jiří. "Návrh financování výstavby nízkoenergetického domu." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2012. http://www.nusl.cz/ntk/nusl-374580.
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This thesis describes the design of optimal options for financing the construction og a low energy house. In the introductory section describes the characteristics of the two products designed to finance housing, mortgage loan and building savings. Another section is devoted to the characteristics and principles of construction of a low energy house, which is related to low energy and less than saving the house. The final section focuses on the selection of a suitable vision of the comparable financial products.
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Gebauerová, Dana. "Návrh financování revitalizace bytového domu." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2011. http://www.nusl.cz/ntk/nusl-223305.
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Diploma thesis deals with revitalization issues of prefabricated house. The aim of the work evaluate the effectiveness of revitalization and presentation proposal of the best variant in terms of investment and energy savings. In the theoretical part is explained revitalization issues, problems of prefabricated houses, phase of the modernization and financing. Practical part is focused to specific revitalization of the prefabricated house, analysis of financial bids of banks and use of subsidies, analysis of energy audits. On the basis of the analysis is determined the optimal variant of the revitalization.
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Löffelmannová, Romana. "Návrh financování revitalizace bytového domu SBD Macocha." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2010. http://www.nusl.cz/ntk/nusl-222794.
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Novotná, Jana. "Financování revitalizace bytového domu s dvanácti bytovými jednotkami v Blansku." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2012. http://www.nusl.cz/ntk/nusl-223449.
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This diploma thesis discusses the possible ways of financing the comprehensive revitalization of the apartment house. This diploma thesis contains calculations of the savings, selection of the implementer and assessment of the debt financing.
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Persson, Tomas. "Combined solar and pellet heating systems for single-family houses : How to achieve decreased electricity usage, increased system efficiency and increased solar gains." Doctoral thesis, Stockholm : Kungliga Tekniska högskolan, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4204.
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Chlebný, Radek. "Autonomní dům aneb život grid-off." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220159.
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This thesis deals with energy self-sufficiency focusing on the independence of the electric grid. Basic line emanating project form a concrete proposal for autonomous energy supply system. Emphasis is placed primarily on photovoltaic systems, electric energy accumulation and selection of individual components of such a system. Another important part of the thesis is also an economic evaluation of design variations. The thesis also deals with a market research, and thereof derived benefit assessment of each technology. The accompanying chapters are then devoted to the history of autonomous life style or classification of buildings according to their energy performance.
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CHEN, CHI-HSUEH, and 陳奇學. "The Study of Applying Transition Temperature to House Energy Saving." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/89339973022473956955.
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碩士國立高雄應用科技大學
工業工程與管理系碩士在職專班
103
Nowadays the access to energy and the problem of global warmth have become the top priority, which allow of no delay. Seeking economic high development need depend on stable and appropriate energy supply. However, in pursuit of the habitable and secure living environment, it is necessary to develop clean nonpolluting energy. Today the energy obtained we are using is ninety percent composed of petroleum and burning coal conversion. Although it is convenient and stable, it is high-polluting energy, which also perhaps results in the main cause of global warmth and greenhouse effect. Much worse, due to continuous exploitation mineral products are also getting exhausted. Thus, green energy development and exploitation become more important and urgent. In this respect, green energy can be in the form of wind power, hydraulic power, tides, solar energy, biofuel, etc., which are the substitute energy worth exploiting and researching. Earth soil and groundwater have the features of constant temperature, in the way that in summer time they can provide the air temperature and cold water lower than those of the earth's surface, and vice versa in winter time. The surroundings around life concerning the exercise of transition temperature are many, such as ice pillows, water beds, solar water heaters, atomizing cooling equipment, and heat pump water heaters, all of which have the function of transferring temperature. Solar energy is relatively abundant for Taiwan located in the subtropical zone, which due to higher temperature in summer time the consuming energy of air conditioning is very significant. Currently the traditional energy on which Taiwan depends has the problem of pollution. If the solar energy and earth cold can be fully utilized for carrying out air-conditioning, then the energy can be significantly saved. Therefore, if the temperature of underground and earth surface can be highly efficiently exchanged, we can effectively use energy and then solve the problem of energy shortage. Therefore, this study explore mainly to use the energy piles that can transfer temperature to lower the energy added from outside to the extent that temperature adjustment needs and to reduce the energy waste. The principle is the specially manufactured pile body buried in the underground for absorbing or releasing temperature which uses water as the main heat exchange media. The underground wind pipe buried as the underground ventilating duct can directly direct air, and then send it to the air-conditioning room to do the heat exchange. These are applications for exploiting the shallow layer temperature energy, in which earth source heat pump also uses earth temperature to gain the much more effective energy running efficiency. The results of this study show that, the application of the project of energy piles transition temperature to house energy saving can contribute to energy saving and energy reuse.
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Lin, Keng-Yu, and 林耕宇. "A Study of Green Energy Saving in Lighting Design Under Intelligent House." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/65232817986348538290.
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碩士大葉大學
設計研究所
95
In recent years, the excess of discharge of carbon dioxide causes many problems, such as global warming, acid rain, accelerating deterioration of the environment, rapid shortage of resources, species extinction, and etc. The eco-awareness and the concept of green energy-saving gradually get attention from the public and the development of “greenism” forms the international trend. Household is the center for human beings, while “human beings” are the main entity for environmental sustainable development. When the living quality is kept lifting, decreasing the energy consumption for household becomes the important element for human being and the environment to develop with balance. With the influence of the environmental impact, the household lighting will be combined with the concept of future residence and Control System of Intelligent House technology, in response with the consumption effect and the trend of green energy-saving development, to decrease the consumption of lighting facility in household and to achieve the ideal of environmental sustainable development. Therefore, we aim to find out whether applying household lighting facility in the technology “Control System of Intelligent House” can effectively save the energy, to start the initial evaluation, and to understand whether it is practical and doable. In this study, the framework is constructed by the relevant literature review. The relevant data through expert interview and survey is compiled, analyzed, and induced before the Fuzzy AHP is applied to investigate the affecting factors in the cognition and application of green energy-saving. Then the SWOT analysis is used with the above factors to show the strength, weakness, opportunity, and threat. At the end of the study is the conclusion: applying and developing lighting energy-saving into Intelligent House can ensure the goal of low-containmination and zero-consumption.
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Heng-Hsiu, Chen, and 陳姮秀. "A research of outdoor teaching at the green house of energy saving." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/03029709788571764367.
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Wu, Tsung-Hsien, and 吳宗憲. "An Energy-Saving Checklist of the Dwelling House Envelope and Its External Environment." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/y4zqc6.
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碩士國立臺北科技大學
建築與都市設計研究所
98
According to the statistics from the Bureau of Energy, Ministry of Economic Affairs in Taiwan in 2008, the consuming of residential electricity is around 19.98% of all in Taiwan. Although there was implemented the Green Building Labeling System, most of the residential buildings were not designed for saving energy. If the factors to improve the energy-consuming of residential buildings are indicated, it will be very beneficial for energy saving and emission reduction. This study is based on “Heuristic Structure manipulation model”, and referred to the way how Germany, Japan and Singapore did for saving energy and to literature. The objects of study are building envelope and the external environment. With indicating the energy-consuming factors of exited residential buildings, generalizing the checklist of the energy-saving of residential buildings, and verifying the residential buildings in Taipei city, the recommendation of the improvement of energy-saving for the residential buildings in Taipei city has been proposed. This study has generalized 22 assessment items through 77 key points. It includes 6 aspects of assessment such as design of the external environment of buildings, building construction methods, natural light and ventilation, wall and sunshade, heat insulation of roof, and innovative energy-saving.
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Xie, Ming-Jial, and 謝明珈. "An Analysis and Evaluation of Energy Saving For House Facility By Applying Green Building Materials." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/33909762777534917486.
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碩士大葉大學
設計研究所
95
This study aims to focus on the rapid growing use of electricity for household due to the high temperature during summer in Taiwan. The consumption of electricity during summer creates peaks one after another. On the contrary, during the winter, the consumption of electricity presents evident difference between normal and peak periods.In the past, the main direction for energy-saving is to elevate the efficiency for air-conditioning, lighting and the effectiveness of energy system. However, the comparison of the electricity consumption in 2004 and 2005, we can find out that the electricity consumption of 2005 didn’t show evident decrease, didn’t maintain, either, and was not effective enough. Therefore, the study aims to analyze the benefit and efficiency of the application of the green building materials in household, to improvement the muggy closeness condition in household, to develop the most comfortable living space with the lowest consumption of electricity power, and to conclude a conclusion for the benefit and efficiency of applying green building material in household facility. Through the expert interview and the literature review, we attain the cognition of the main characteristic of green building material, being recollect able and reusable, which brings less impact during all the processes than the traditional building materials in saving household energy. We compile the data and induce four goal aspects and sixteen evaluation indices. Further with the Analytical Hierarchy Process (AHP) to analyze and evaluate, we aim to find the correlations and priority between the green building materials and the efficiency for household energy-saving, to build up a set of process and the evaluation form for the application of green building materials in household energy-saving as the basis for further evaluation, and to make up the most efficient improvement for household energy-saving for the main priority items.
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楊守杞. "Case Study of Energy Saving on Residential House-Demonstrated from a Housing Located at Taoyuan County." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/wg6456.
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碩士明新科技大學
土木工程與環境資源管理系碩士班
105
In the gradual depletion of resources, over-economic development and neglect of environmental conservation work, through the development of energy-saving green buildings and future thinking, so that the building can cross the traditional areas to achieve energy conservation, resource recycling, and environmental affinity and symbiosis, create Healthy and comfortable living environment, sustainable development issues to understand the current Taiwan green building encountered obstacles and shortcomings. Therefore, the main purpose of this study is to explore the domestic green building, with nine indicators of the actual design of the case into the green building under the applicability and feasibility. Hope to study the results can arouse public concern and participation, the use of energy-saving green building design and construction, to enhance the environmental quality, promote the ecological environment, sustainable development of the building goals. Through the case of Taoyuan Longtan a construction case to explore, for the study and development of Taiwan has a vibration, anti-Taiwan, isolated, fire, moisture ... and many other functions, and the use of ground temperature and roof convection, using a large number of natural fibers and Cement mixed with the hollow light material relative to reduce the weight, and the method quickly shorten the construction period, safe and easy, easy assembly, environmental protection and save the material, cheap residential green structure system, this steel structure light steel structure system, no special Precision mechanics and machinery, you can put into quantitative production, so the industrialization of energy-saving green tectonic system, to explore the future development trend of energy-saving green building. The conclusions of this study can provide follow-up related issues and applications. Keywords: energy efficient building, sustainable development, green building
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Li, Bo. "Energy saving opportunities in residential buildings: insights from technological and building energy code perspectives." Thesis, 2020. http://hdl.handle.net/1828/12135.
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The residential building sector plays an important role in combating climate change in Canada. Many energy efficiency solutions along with new building energy standards have been implemented to improve building energy performance. However, their effects on energy saving and GHG emissions reduction vary due to the complexity of the building systems and the variability of their operational conditions. This work quantifies such variability in both energy efficiency devices and building energy standards implementation, respectively.
The first study in this dissertation assesses the energy savings from sensible heat recovery in a residential apartment suite in various locations across Canada. A series of detailed building energy performance models are developed in TRNSYS. The HVAC system’s annual energy consumption is simulated and the results are compared with and without HRV for each climate zone. The results show the heating energy savings of employing the HRV vary from 17 to 34% depending on the winter climatic conditions; while, the building cooling energy use can be increased due to the undesired thermal recovery occurring in the HRV during the cooling season.
The second study investigates the free cooling potential of outside air in various Canadian cities. A series of thermal models developed using BEopt 2.8 for a hypothetical single-family house with various window-to-wall ratios and building aspect ratios simulates hourly building cooling load profiles. The free cooling potential is analyzed by comparing the maximum available and the actual usable free cooling for various building features and different climates. The results indicate that, although free cooling is widely available in most areas of Canada during the summer and shoulder seasons, only 17-42% of such free cooling is usable without the use of thermal storage.
The last study examines the effects of two building energy standards - the BC Step Code and the Passive House criteria - on reductions in residential household space heating GHG emissions under different enforcement scenarios. The space heating energy and the GHG emissions are estimated using the forecast growth of single detached households for the period from 2020 to 2032. The results show that the space heating GHG emissions can be reduced by 77% and 89%, respectively if the BC Step Code or the Passive House criteria is implemented in Canada. It is also found the impacts of energy code on GHG emission mitigation are less significant in regions where the carbon intensity of the dominant heating fuels is low.Graduate
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Yu, Tsai-Ping, and 余彩萍. "GHG inventory and assessment of the energy saving air-conditioning systems－A case study of semiconductor testing house." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/4t77xc.
Full textAbstract:
碩士國立交通大學
工學院永續環境科技學程
102
Due to continuing concern over global warming and climate change issues, greenhouse gas (GHG) reduction now becomes the common goal in countries around the world. Although semiconductor test industry is not obliged to report GHG emissions, the industry still actively involves in volutary energy saving and carbon reduction to protect the earth envrionmennt and climate in response to the demand of green supply chain and corporate social responsibility. Energy consumption is closely related to anthropogenic GHG, i.e. CO2, emissions. The semiconductor testing house of this study is power-consuming and faces the pressure to cut the cost. Therefore, there is a demand to improve energy efficiency in this plant. This study uses quality control circle (QCC) concept and targets at low cost, fast output and team effort to optimize the performace of relavant facilities. The purpose is to improve the efficiency of the air-conditioning system to achieve the energy-saving goal. The carbon reduction and power saving priorities were first set by the survey of the GHG emission inventory. Three factories: A, B, and C of the semiconductor testing plant were investigated for the GHG emissions from 2011 to 2012. Results show that indirect energy emissions contribute 97.47 % of total emissions and the main source is purchased electricity. The estimated total GHG emission is 47,572.90 tons CO2e/year in 2012, which is 4146.18 tons CO2e/year less than that in 2011 or 8.02 % reduction in total emissions. The plant used the power-saving control module for the chiller system for the first time in 2012 to reduce the inlet water temperature of the cooling tower and to increase the outlet water temperature of the chiller. As a result, 109.43 and 454.71 tons of GHG emissions were reduced, respectively. This emission reduction is equivalent to 1.5 times carbon dioxide sink of the Daan Park in Taipei achieving 1.19 % of total GHG emissions in 2012. Therefore, the goal of energy saving and cost cutting can be achieve by proper adjustment of the operational conditions of the air-conditioning system. It is a practical energy saving and carbon reduction method at the current stage.
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LI, SHANG-QI, and 李尚騏. "Case Study of Energy Saving Efficiency for Community-Type House As Demonstrated by Four Housing Communities Located in Hsin-Chu City." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/hfpe8a.
Full textAbstract:
碩士明新科技大學
土木工程與環境資源管理系碩士在職專班
105
This study is started from Hsinchu County and Hsinchu City, which is considered by geographical environment. It would like to prove the benefit of energy saving of revenue house by 3 different but correlational aspects. This study takes the methods both of qualitative and quantitative research. 1st, it analysis the revenue house residents’ relationship of awareness, attitude and behavior on the energy saving. 2nd, it interviews the chairman of home association or the director-general of community by semistructured interview, which would like to know the development process between the work of energy saving of revenue house. Finally, to arrange and analysis the information of energy saving. This study would like to prove the following deductions: 1. The residents of revenue house are well as the basic knowledge of energy saving. 2. There is the relationship of awareness, attitude and behavior on the energy saving. 3. The chairman of home association or the director-general of community has the deep understanding on the benefit of energy saving. 4. The results of energy saving is the really benefit of the revenue house. Key Word: Energy saving, Revenue house, Community
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Potapov, I. E., and И. Е. Потапов. "Технологии "Пассивного дома" и возможность применения в Уральском федеральном округе : магистерская диссертация." Master's thesis, 2014. http://hdl.handle.net/10995/29215.
Full textAbstract:
The aim of this master's thesis is to find out the possibility of building a passive house in the Ural region. To achieve this goal it was necessary to solve the following problems, the results are presented in the thesis:
1) to define the concept of "passive house";
2) to identify the technologies used under the construction of energy efficient buildings;
3) to consider the alternative mounting options of low-rise buildings;
4) to establish the geographic and climatic conditions of the selected area;
5) to describe the socio-economic situation in the region;
6) to reveal the specifics of the Passive House in the Ural Federal District.
It was found out that construction of a Passive House in compliance with all the relevant technologies and global standards of Passive Houses in the climatic conditions of the Ural region at this stage is difficult. The main reasons of that are the following:
1) The climatic conditions of the region require for increasing the insulation layer, development and application of new types of insulating materials with higher resistance to heat transfer.
2) The economic conditions of the region determine the choice in favor of budget accommodation rather than innovation.
3) The complexity of the design, the lack of professionals and practical experience in the construction of passive houses. Master's thesis contains 62 pp., 6 fig. 5 tab., 67 bibliographic references. Graphic part - 5 sheets.Цель диссертации - определить возможность постройки пассивного дома в Уральском регионе. Для реализации поставленной цели необходимо было решить следующие задачи, результаты изложены в диссертации: 1) определить понятие "Пассивный дом"; 2) обозначить технологии, применяемые при строительстве энергоэффективных зданий; 3) рассмотреть альтернативные возможности монтажа малоэтажных строений; 4) установить географо-климатических условия выбранной территории; 5) описать социально-экономическую ситуацию заданного региона; 6) выявить специфику пассивного дома для Уральского федерального округа. Установлено, что постройка пассивного дома с соблюдением всех технологий и соответствующего общемировым стандартам пассивного дома на данном этапе в климатических условиях Уральского региона затруднительна. Основными причинами этого являются: 1) Климатические условия региона, требующие увеличения слоя изоляции, разработки и применения новых видов изолирующих материалов с большим сопротивлением теплопередаче. 2) Экономические условия региона, определяющие выбор в пользу бюджетного жилья, нежели инновационного. 3) Сложность конструкции, отсутствие специалистов и практического опыта строительства пассивных домов. Магистерская диссертация содержит 62 с., 5 табл., 6 рис., 67 библиограф. ссылок. Графическая часть – 5 л.
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Li, Yi-Ta, and 李易達. "Energy capture of small hybrid systems integration design studies - to explore the home of an energy-saving smart house hot / cold air conditioning thermal design and analysis." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/xck8cz.
Full textAbstract:
碩士中華大學
機械工程學系碩士班
103
Most of the old buildings with active and passive hybrid design, but recently the building was itself increasingly focused on save energy and reduce carbon efficiency, Therefore natural ventilation, solar heating and generate refrigeration load energy low consumption natural light and avoid the sun shade and other natural passive setting without consuming too much energy, will be the choice for green building. This study is mainly divided into two parts, simulation and physical modeling experiment, the first residential home for the use of the PCM、solar panels and TEG be combined into an unit system that collects solar radiation, heat driven air flow supplied to the indoor space when the winter temperature increase, On the contrary, when the summer air-conditioned indoor residential home reused of PCM by a fan blowing to the auxiliary control mechanism to adjust to the proper indoor temperature, the results of this study will be the integration of a residential home for a fully passive hybrid system of green building. By using this results can analysis of air, heat and lighting, which is very important in terms of the residential home and develop a complete physical model of passive physical hybrid system architecture, with software Flunt to assist in Taiwan's Hsinchu climate data as a analytical solution and numerical solution is obtained, it can accurately calculate energy efficiency and thermal efficiency. In addition, the study will be a physical model residential home scaled down to make a physical model and with solar panels in the model, phase change materials, thermoelectric generators and other equipment to actually simulate the fan inside the room temperature changes. But also the actual measurement solar panels, phase change materials, thermoelectric generator voltage and current of each other to actually assess whether this system can provide sufficient voltage and current to power wireless sensors and fan as well, Expected the thermoelectric generator by solar panels, and thermal phase change material generated electricity can be used to provide the required power needed for residential home bright lighting, all kinds of wireless sensors and fan. In this experiment and numerical results can be found the electricity generated by the solar panels and the thermoelectric generated by the generator can also prove that the use of solar panels, radiant heat and the cold end of phase change material during the day and night to make home indoor cooling and heating, so that housing can exploit this energy-saving system power save can achieve reduction effect.