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Dissertations / Theses on the topic 'Pump building'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Bish, Samuel Gerard. "Building and Detecting an Optical Lattice." Miami University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=miami1186456085.

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2

Mori, Hiromi. "Enhancement of heat transfer for ground source heat pump systems." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11483/.

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Uptake of geothermal heat pump (GSHP) systems has been slow in some parts of the world due to the unpredictable operational performance, large installation space requirement and high installation costs. Therefore, design modification was searched in order to improve the feasibility. With regard to relatively small impact of the construction costs, efficient thermal energy collection was targeted in horizontal ground-loop systems with shallow underground construction. The research started with a sensitivity analysis of the underground heat collection system using computational fluid dynamics (C

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3

Wolf, Tobias. "Model-based Assessment of Heat Pump Flexibility." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-284083.

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Today's energy production is changing from scheduled to intermittent generation due to the increasing energy injection from renewable sources. This alteration requires flexibility in energy generation and demand. Electric heat pumps and thermal storages were found to have a large potential to provide demand flexibility which is analysed in this work. A three-fold method is set up to generate thermal load profiles, to simulate heat pump pools and to assess heat pump flexibility. The thermal profile generation based on a combination of physical and behavioural models is successfully validated ag

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4

Hobbs, Kyle. "Thermally driven natural circulation water pump." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97066.

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Thesis (MEng)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: The water utilized by passive air-conditioning systems in buildings is typically required at higher elevations. The thermally driven natural circulation water pump (TDNCWP) is a passively driven pumping system for delivering water from ground level against gravity to a higher elevation. It consists of a humid air closed duct loop to which a temperature difference is applied, resulting in a density gradient driven flow. A hot water evaporation tray inside the loop at ground level introduces water vapour to the loop air flo

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5

Péan, Thibault Q. "Heat pump controls to exploit the energy flexibility of building thermal loads." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/669805.

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Smart controls for heat pumps are required to harness the full energy flexibility potential of building thermal loads. A literature review revealed that most strategies used for this purpose can be classified in two categories: simpler rule-based control (RBC), and model predictive control (MPC), a more complex strategy based on optimization and requiring a prior model of the systems. Both RBC and MPC can use external penalty signals to prompt their actions. The price of electricity is most often used for this purpose, leading to strategies of cost reduction. As an alternative penalty signal,

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6

Torrent, Lluch Mariona. "Ground heat pump in combination with district heating for a multi-dwelling building in Gävle." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-12062.

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Environment has become a major concern for society, which awareness of the importance of an environmentally respectful development has been growing during the last decades. Economic reasons have encompassed this transition to a more planet friendly conception of human development. In fact, this transition has been parallel to the growing prices of fossil fuels, facing a clear perspective of a shortage on its availability, insufficient to cope with a growing demand in the near future. Within this context, the role of renewable energies in order to stop depending on fossil fuels and to reduce gr

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7

El, Sabea Hassan. "Field measurements evaluation and modeling of CO2 heat pump for residential building (Gamen 12)." Thesis, KTH, Energiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-253825.

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Carbon dioxide, as a natural refrigerant, is safe and environment-friendly. It is also an economic refrigerant which can be utilized in residential heat pumps. Analysis has been done to evaluate the performance of the CO2 heat pump in Gamen 12 (Skrapan) in the Sodermalm area, owned by Vasakronan; which is a real estate company. The building satisfies its heating needs through connecting to the district heating network. Furthermore, the CO2 heat pump was installed to recover the available high- potential- waste energy from the building. The evaluation starts with one year of field measurements

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8

Garber, Denis. "Ground source heat pump system models in an integrated building and ground energy simulation environment." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648702.

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9

Parr, Eric. "Performance of an air-to-air heat pump heating and recovery unit at high ventilation rates." Thesis, University of Central Lancashire, 2007. http://clok.uclan.ac.uk/20042/.

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This thesis reports on design and performance studies of a prototype combined air source heat pump and storage system, retro fitted to heat occupied spaces subjected to high ventilation rates. The source of heat is from the air in the extract duct. Two limiting thermal conditions exist. The first is the thermal capacity of air passing over the ducted heat exchangers. The second is the dew and freezing points of the exhaust air, because of the insulating effect of ice on exchanger fins and tubes. Both are alleviated to a significant extent with high mass flow rates passing down the duct, since

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10

Baster, Eric. "Air source heat pump modelling for dynamic building simulation tools based on standard test data." Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28922.

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Air source heat pumps (ASHP) are increasingly of interest in the UK and Europe, due to national commitments around emissions reductions and the greater use of renewables. This raises issues around the optimisation of installation design approaches, and the potential for ASHP to contribute to demand flexibility. Dynamic modelling is a useful tool for addressing such issues. It is also beginning to play a role in performance estimation under National Calculation Methodologies. There is currently no broadly accepted method for the creation of models of air-to-water heat pump performance for dynam

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11

Vo, Minh Toàn. "Assessment of heat pump operating faults coupled with building energy simulation using Petri net model." Thesis, La Rochelle, 2021. https://tel.archives-ouvertes.fr/tel-03685404.

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Les pompes à chaleur offrent une solution efficace et durable pour le chauffage et le refroidissement des bâtiments. Cependant, ces systèmes fonctionnent parfois avec une faible efficacité, en raison des défauts. Dans cette recherche, nous nous concentrons sur trois défauts de fonctionnement : les fuites de réfrigérant, l'encrassement du condenseur et l'encrassement de l'évaporateur. Ce sont les défauts de fonctionnement les plus fréquents et les plus impactés. Nous proposons de développer une méthode pour modéliser ces défauts de fonctionnement et les associer à un modèle de simulation de bât

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Urtasun, Cristina. "Energy audit and saving analysis of a building : Study of heat pump installation and district heating connection." Thesis, University of Gävle, Department of Technology and Built Environment, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-595.

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<p>The object of analysis in the present document is a residential house in Sätra. This building has a hydronic space heating system with radiators spread around the house and a heating recovery system ventilation which also use water for reheating. Water for space heating, ventilation and hot tap water is nowadays heated in an electric boiler.The aim of this project is to make a diagnosis of the current situation, evaluate different alternatives for supplying hot water to the house, and to study costs and possible savings by comparing the actual facilities with the proposals done.</p>

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13

Wagemann, Stephen Scott. "Building a Raman laser pump source capable of generating flexible pulse durations while maintaining high spatial quality." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/wagemann/WagemannS0509.pdf.

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A detailed characterization of a Raman pump laser throughout the construction process is reported. Due to specific requirements for the pulsed Raman experiment, there were no commercially available pump lasers capable of meeting our specifications. The pump source must produce high energy pulses of 50mJ to 100mJ with variable duration centered at 200ns. To create this pump source, the pulses are gated from a CW source and then amplified with a high gain Nd:YAG amplification system. High spatial quality is also a necessity as the laser needs to be coupled into a small diameter waveguide functio

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14

McDaniel, Matthew Lee. "Proposed Design for a Coupled Ground-Source Heat Pump/Energy Recovery Ventilator System to Reduce Building Energy Demand." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/33610.

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The work presented in this thesis focuses on reducing the energy demand of a residential building by using a coupled ground-source heat pump/energy recovery ventilation (GSHP-ERV) system to present a novel approach to space condition and domestic hot water supply for a residence. The proposed system is capable of providing hot water on-demand with a high coefficient of performance (COP), thus eliminating the need for a hot water storage tank and circulation system while requiring little power consumption. The necessary size of the proposed system and the maximum and normal heating and cooling

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Лобуренко, Михайло Васильович, Михаил Васильевич Лобуренко, Mykhailo Vasylovych Loburenko, Андрій Анатолійович Папченко, Андрей Анатольевич Папченко та Andrii Anatoliiovych Papchenko. "Моделювання вихрового руху рідини у відкритому каналі". Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45623.

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Сучасне насособудування, згідно S - подібної кривої, знаходиться на етапі старіння, коли розвиток системи сповільнюється, а згодом і взагалі припиниться. Це випливає з того, що в області підвищення ККД насоси майже досягли свого максимального значення. Зважаючи на те, що насос є лише частиною гідравлічної мережі, існує резерв підвищення ефективності гідравлічних систем шляхом оптимізації сумісної роботи насоса і мережі. Саме тому значна частина досліджень направлена на підвищення ефективності за рахунок оптимізації трубопровідної мережі. Для енергозбереження, на сьогодні, пропонуються

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16

Sultan, Sahira. "Cost Evaluation of Building Space Heating; District Heating and Heat Pumps." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-37137.

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Climate change and energy efficiency has become a matter of concern in recent times; therefore, energy efficiency of buildings has drawn major attention. According to the European Commission, EU countries must improve energy efficiency of existing buildings by retrofitting and renovating the buildings. A case study of a renovated commercial building is considered in this degree project. A model of the building is developed in the IDA Indoor Climate and Energy (IDA ICE) software. The model is then augmented to include renovations in the building. Further, the model is simulated in IDA ICE befor

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17

Mračková, Alžběta. "X Návrh a optimalizace tepelného čerpadla pro mateřskou školu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228085.

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The point of this diploma thesis is heating design with use of heat pump (HP) for nursery building. The first part introduces problems of HP, familiarization with historical development, working principle, description of components, working cycles, partition of heat pumps due to the source of lowpotential heat and possibilities of working operations. In practical part then follows heat loss computation of own building, suitable heat pump choice, economic balance, investment recovery and evaluation of this solution.

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18

Clauss, John. "Feasibility study for upgrading the current heat distribution network of an existing building complex to a Smart Thermal Grid." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-173741.

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A feasibility study on upgrading an existing heat distribution network to a low-temperature distribution grid has been carried out during this project. The integration of a solar thermal system combined with a borehole thermal energy storage (BTES) for covering the space heating demand of the buildings as well as the application of CO2 heat pumps and water storage tanks for domestic hot water (DHW) production were investigated in order to apply more renewable energy sources. The energy analysis included several measures, such as modeling the energy demand of the buildings, finding a reasonable

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19

Rimec, Daniel. "Multidimensional Assessment For a Case Studied Zero Energy Building : Climate positive buildings with and without a connection to the district heating network." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-54650.

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The purpose of this report is to get an overview of the CO2 reduction possibilities when adopting different renewable energy source, when the case studied building sustains a district heating network connection and when not, and how the renewable energy source flexibilities (Solar and Wind) differ depending on region. The method regards a ETC house that falls into the climate positive category and assesses the reduction when comparing CO2 emissions form the energy demand. The result for the flexibilities is then compared to the BBR demand. The result shows a difference of around 10% in product

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Kubátová, Anna. "Heating of building with almost zero energy consumption." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225687.

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The aim of the thesis is to model energetic needs for heating and temperatures progress in the building with almost zero energy consumption. The part of the work is the economical and energetic comparison. Proposed systems are based on a knowledge of active houses.

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21

Saini, Puneet Kumar. "A Preliminary Optimisation and Techno-economic Analysis of Solar Assisted Building Heating System Using Transpired Air Solar Collector and Heat Pump in Sweden." Thesis, Högskolan Dalarna, Energiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:du-30537.

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This thesis presents an optimisation approach and techno-economic evaluation tool for a system consisting of a transpired solar air collector and air source heat pump in a series arrangement. The thesis also investigates the application of the developed tool for feasibility study of a solar heat pump system for a group of three multi-family houses located in Ludvika, Sweden. Transpired solar air collector is used in combination with an air source heat pump to meet space heating and hot water demand for the defined location. Moreover, the solar pre-heated fresh air is used as a heat source fo

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Кушніров, Павло Васильович, Павел Васильевич Кушниров, Pavlo Vasylovych Kushnirov та Д. Н. Самардак. "Усовершенствование изготовления и сборки деталей насоса ПЭ75-115". Thesis, Издательство СумГУ, 2008. http://essuir.sumdu.edu.ua/handle/123456789/5852.

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Предложена методика контроля остаточного усилия в шпильке при затяжке разъемов секционных насосов. Предложенный метод затяжки обеспечивает точность на порядок выше существующего метода моментной затяжки, который применяется в большинстве насосов. При цитировании документа, используйте ссылку http://essuir.sumdu.edu.ua/handle/123456789/5852

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Hein, Maria. "The carbon footprint caused by the oversizing of building service systems : A case study of an NHS Hospital." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-281540.

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Energy usage in buildings is a main contributor to CO2 emissions and in order for the EU to reach the 2050 goal of carbon-neutrality, there is a great need to improve the energy efficiency in buildings, particularly commercial buildings that often are substantially overdesigned. Excess margins in the design process of building services result in an oversizing of these systems which has great environmental impacts, divided up as the operational and embodied carbon footprints. The heating and cooling system of an NHS Hospital in southern England was studied and modelled in order to identify whet

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Krejsa, Petr. "Tepelné čerpadlo vzduch - voda." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318814.

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The master's thesis deals with the description of heat pump technology (HP) and its use for apartment buildings. The theoretical part contains an introduction, performance of heat pump technology, in particular a compressor heat pump (CHP). In this section is also mentioned about heat pumps for an apartment buildings. Main focus of this thesis is a design of a compact air-water heat pump for the company AISECO spol. s.r.o. This section is focused a design of an individual components of cooling circulation together with proposal of the circulation and principle of operation.

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Lumbier, Fernandez Mikel. "Alternative energy supply study for a cottage in Vifors." Thesis, Högskolan i Gävle, Energisystem, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-26714.

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The present master thesis was done during the spring of 2018. A cottage located in Vifors is studied with regard to its heating requirements. At the time of the study, the house could not be inhabited the whole year because there was no tap hot water available and the space heating demand was covered by electricity. Thus, an alternative heating supply is required to be developed. As a strategic prerequisite, the solution should be achieved considering both solar thermal collectors and a heat pump.First, the characteristics of the building were collected/determined in order to obtain the total

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Åhlander, Pettersson Victoria, and Anton Mattsson. "Kartläggning av problem vid projektering, installation och drift av värmepumpar." Thesis, KTH, Byggteknik och design, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231788.

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För att kunna utföra energieffektiviserande åtgärder i en befintlig byggnad, och generera ett bra utfall, krävs goda kunskaper om projektet. Detta betyder att alla discipliner måste ha ett gott samarbete och att varje disciplin måste ta sitt ansvar för uppgiften. Det är inte alltid som utfallet blir det optimala. En sammanställning i tabellform kan tydligt påvisa de frekventa problemen. Detta har genom att belysa de problem som uppstår i samband med projektering, installation och drift av värmepumpar i tre olika fall genererat en sammanställd tabell. Resultatet visar att åtta olika problem för

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Ben, Nejma Hachem. "Étude de l’interaction thermo-aéraulique entre un capteur PV et une pompe à chaleur (PAC) intégrés à un bâtiment basse exergie." Thesis, Paris, ENMP, 2012. http://www.theses.fr/2012ENMP0114/document.

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Les contextes énergétique et environnemental actuels rendent nécessaire la réduction de la consommation en énergie primaire des secteurs énergivores tels que le secteur du bâtiment. Pour y parvenir, plusieurs études se sont penchées sur la réduction des besoins de chauffage et de climatisation. Mais un autre potentiel d'amélioration réside dans l'étude de la qualité de l'énergie employée pour répondre à ces besoins. En effet, le contenu exergétique des besoins du bâtiment étant faible, il est possible de réduire le contenu exergétique de l'énergie consommée par les systèmes assurant ces besoin

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Azad, Mohammad. "Evaluation of an Energy System for multi-family houses with Combination of Exhaust Air Heat Pump and PV : Case Study: Demonstration Building of The EU Energy Matching Project, Sweden-Ludvika." Thesis, Högskolan Dalarna, Energiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:du-28650.

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This thesis investigated application of the heat recovery ventilation using an exhaust air heat pump and a roof top photovoltaic (PV) system for a group of three multi-family houses located in Ludvika, Sunnansjö. The buildings in the existing condition have mechanical ventilation and a centralized heating system consists of a pellet boiler as the main source and an oil boiler as back up. Exhaust air heat pump (EAHP) has been known by the previous relevant researches as an effective solution to promote the energy efficiency in the buildings. Furthermore, reduction in PV cost has made the PV as

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Falck, Agnes. "Energieffektivisering av skolbyggnad från 60-talet : Studie av Hållsta skola i Eskilstuna." Thesis, Uppsala University, Solid State Physics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-123749.

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<p>In June 2006 the Swedish government decided that the use of energy in buildings should be reduced by 20 percent until 2020, compared to the level of energy used in 1995. To contribute to this goal, the real estate company “Eskilstuna Kommunfastigheter AB”, set up own goals for their buildings. In 2009, the goal for schools was to have a maximum energy use of 118 kWh/m<sup>2</sup>year for heating and hot water.</p><p>The school “Hållsta skola”, just south of Eskilstuna, exceeds the limit since it used 270 kWh in 2008. The school is heated by oil burners, which is not desirable since oil is a

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Gataveckas, Kipras. "Integruotas grunto ir mažaenergio pastato atliekinės šilumos panaudojimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140610_141426-25126.

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Baigiamajame magistro darbe nagrinėjamos grunto ir atliekinės pastato šilumos panaudojimo galimybės mažaenergiame pastate, Vilniaus mieste, Lietuvoje. Suskaičiuoti keturi pastato energijos balansų variantai, naudojant ”CASAnova” kompiuterinę skaičiavimo programą, su skirtingais atitvarų šilumos perdavimo koeficientais. Pastate taikomos dvi energijos taupymo priemonės. Pirmoji yra gruntinis šilumokaitis naudojamas šviežio oro pirminiam pašildymui mechaninio vėdinimo sistemoje, kurio skaičiavimai atliekami ”GAEA” programa. Antroji yra nuotekų šilumos atgavimo šilumokaitis, naudojamas į pastatą t

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Oehme, Sabina. "Demand flexibility potential from heat pumps in multi-family residential buildings." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-355135.

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The Swedish energy power system is in the middle of a paradigm shift where the increased share of intermittent energy sources place higher demand on the ability to regulate and balance the generation and consumption of electricity. Demand flexibility, which means that consumers can adjust their energy consumption, is a promising solution to manage the imbalance in the power system. Electric heat pumps in residential buildings are recognized to have potential to serve as a flexible load. In this thesis, an aggregated multi-family residential building model is developed to generate heat load pro

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Cizmeli, Claudia. "En jämförelse ur energisynpunkt mellan roterande värmeväxlare och frånluftsvärmepump i universitetsbyggnad." Thesis, KTH, Byggteknik och design, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-128525.

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För att tillgodose den studerande KTH byggnadens framtida krav kommer det befintliga ventilationssystemet att bytas ut. Två olika möjliga värmeåtervinningssystem har jämförts ur fjärrvärmebehovssynpunkt. Det befintliga systemet med vattenburen batterivärmeväxlare har en låg värmeåtervinningsgrad och Akademiska Hus önskar system med högre värmeåtervinning. I byggnaden har roterande värmeväxlare och frånluftsvärmepump för uppvärmning av tilluften jämförts. Då värmeåtervinning från dessa system inte är tillräckligt kommer fjärrvärme att används. I beräkningarna jämförs fem roterande värmeväxlare

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Goblirsch, Amanda, Banaz Izat, and Rintanen Melinda Österblad. "Jämförelse av värmekällor : Byte av värmekälla i ett småhus ur ett energi-, ekonomi- och klimatperspektiv." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-55435.

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Purpose: The aim of this study is to present the economic, environmental impact, and energy saving benefits of replacing an electric boiler to a bedrock heat pump or district heating. Furthermore, the impact of additional insulation will also be presented. Method: The technical, environmental, and economical aspects of the various heat sources in this study are gathered through websites and reports from agencies, industry organisations and corporations. A case study on a family house built in 1971, heated with a combination of electric boiler and air-to-air heat pump has been made. The study i

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Ma, Chenwen. "Retrofitting a Single-family Home with Increased Use of Renewable Energy." Thesis, KTH, Installations- och energisystem, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-215962.

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Buildings account for up to 40% of the total energy use in the world. Directives from the European Union have pointed out the significance of increasing the energy efficiency in buildings. New regulation in countries like Sweden has established that new buildings should fulfil regulations of Nearly Zero Energy Buildings (NZEB), providing the opportunity for renewable energy technologies to achieve these goals. In this paper, the retrofitting potential of renewable energy technologies for a single-family home in Sweden was investigated.The present work studied the characteristics of several ren

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Bodelsson, Cecilia, and Emma Sandersson. "Kompaktaggregat till Passivhus i Sverige." Thesis, Växjö University, School of Technology and Design, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-2113.

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<p>Kompaktaggregat är ett integrerat FTX- och FVP-system som används i passivhus. Vi har gjort</p><p>energiberäkningar i programmet VIP+ för att se hur kompaktaggregatet skulle kunna fungera i</p><p>passivhus i Sverige.</p><p>De resultat vi har fått fram ur VIP+ visar att passivhus med ett installerat kompaktaggregat klarar</p><p>av att nå passivhuskraven ända upp till Skellefteå. De beräknade värdena understiger kraven för</p><p>passivhus, men en viss marginal behövs för att kraven ska nås även efter uppförandet av</p><p>byggnaden. Vi har även tolkat tekniska uppgifter på ett sätt som enligt

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Engvall, Karin. "A Sociological Approach to Indoor Environment in Dwellings : Risk factors for Sick Building Syndrome (SBS) and Discomfort." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3506.

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SILENZI, FEDERICO. "DYNAMIC THERMAL ANALYSIS OF NEARLY ZERO EMISSION BUILDINGS WITH GEOTHERMAL AND SOLAR PLANTS." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1002027.

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At the present day, the need for the reduction of energy consumption is one of the main issues, from the technical, economic and environmental point of view. Buildings are responsible for more than 40% of energy utilization in European countries in 2017 [1]. Thus, actions that increase building energy efficiency are mandatory. Some interventions on the envelope and the internal operating conditions are addressed to the reduction of the heating and cooling loads of the building (i.e. the energy needs). Others pertain directly to the plants that must be properly selected and sized considering, i

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Gustafsson, Marcus. "Energy Efficient Renovation Strategies for Swedish and Other European Residential and Office Buildings." Doctoral thesis, KTH, Strömnings- och klimatteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-206186.

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The high energy use in the European building stock is attributable to the large share of old buildings with poor energy performance. Energy renovation of buildings is therefore vital in the work towards energy efficiency and reduced environmental impact in the EU. Yet, the strategies and energy system implications of this work have not been made clear, and the rate of building renovation is currently very low. The aim of this thesis is to investigate the economic and environmental aspects of energy renovation strategies, with two main objectives: Renovation of Swedish district heated multi-fam

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Trajer, Štěpán. "Zdroje tepla pro vytápění občanské budovy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240240.

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Тєлєтов, Олександр Сергійович, Александр Сергеевич Телетов та Oleksandr Serhiiovych Tielietov. "Маркетинг і інновації продукції виробничо-технічного призначення — один із засобів стабілізації та подальшого покращання сучасного економічного стану України". Thesis, Ткачов О.О, 2016. http://essuir.sumdu.edu.ua/handle/123456789/47714.

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У березні 1987 року під час початку так званої «перестройки» в газеті «Социалистическая индустрия», найавторитетнішому та наймасовішому присвяченому промисловості виданню тих часів, було сформовано тезу, що потрібно швидко відкрити внутрішній ринок, внаслідок чого вітчизняні підприємства будуть змушені конкурувати з іноземними й відразу підвищиться якість товарів, стабілізується попит, споживачів задовольнятимуть терміни постачання та сервіс тощо.

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Charoenvisal, Kongkun. "Energy Performance and Economic Evaluations of the Geothermal Heat Pump System used in the KnowledgeWorks I and II Buildings, Blacksburg, Virginia." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/33942.

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Heating, Ventilating and Air Conditioning Systems (HVAC) are not only one of the most energy consuming components in buildings but also contribute to green house gas emissions. As a result often environmental design strategies are focused on the performance of these systems. New HVAC technologies such as Geothermal Heat Pump systems have relatively high performance efficiencies when compared to typical systems and therefore could be part of whole-building performance design strategies.<P>In collaboration with the Virginia Tech Corporate Research Center, Inc., this research studies the energy c

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Kaděra, Jan. "Tepelné čerpadlo napájené z fotovoltaického systému." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413209.

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This thesis provides heat pump usage in heating mode, heating of potable water or cooling mode. The heat pump is connected with photovoltaic power plant. The main aim of this study is to create photovoltaic system connected with heat pump and present the results of an energetic and economic evaluation. The theoretical part describes principle function heat pumps, photovoltaic power plants and components. The study provides as well a description of heating systems with a heat pump used for space heating or cooling. In the practical part of this thesis was performed calculation of energy consump

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Kolářová, Eva. "Novostavba polyfunkčního objektu na ulici Jana Babáka, Brno." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226654.

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Project's goal is to test the large buildings' design options in regards to permanently sustainable construction. The author's aim is to design energy efficient multipurpose building, with minimal negative effects on environment. The positive impact on environment is visible on the preference of natural materials used in construction. External constructions of thermal conductivity coefficient at the level of passive standard are designed using objects of renewable energy. The location in Brno has been chosen for the proposed building, specifically the location known as brownfields. Lot is acce

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Omer, Abdeen Mustafa. "Performance analysis of ground source heat pumps for buildings applications." Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/13766/.

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Geothermal heat pumps (GSHPs), or direct expansion (OX) ground source heat pumps, are a highly efficient renewable energy technology, which uses the earth, groundwater or surface water as a heat source when operating in heating mode or as a heat sink when operating in a cooling mode. It is receiving increasing interest because of its potential to reduce primary energy consumption and thus reduce emissions of GHGs. The main concept of this technology is that it utilises the lower temperature of the ground (approximately <32°C), which remains relatively stable throughout the year, to provide spa

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Fisco, Stefano. "Modelling of decentral DHW preparation in large multi-family buildings." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18295/.

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The works contributes to the need to design more efficient heating and domestic hot water preparation systems. Dynamic building and simulation plays an important role in the development of domestic hot water (DHW) preparation systems for residential buildings, in order to evaluate and optimize the final energy and the DHW comfort. The case study of this work is a big multi-family building composed of 96 flats. District heating (DH) is used to heat up the water in the storage tank located in the technical room. A distribution system connects the storage to all the fresh water stations (FWS) loc

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Fu, Yu. "Investigation of solar assisted heat pump system integrated with high-rise residential buildings." Thesis, University of Nottingham, 2014. http://eprints.nottingham.ac.uk/14582/.

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The wide uses of solar energy technology (solar thermal collector, photovoltaic and heat pump systems) have been known for centuries. These technologies are intended to supply domestic hot water and electricity. However, these technologies still face some barriers along with fast development. In this regards, the hybrid energy system combines two or more alternative technologies to help to increase the total efficiency of the system. Solar assisted heat pump systems (SAHP) and photovoltaic/thermal collector heat pump systems (PV/T-HP) are hybrid systems that convert solar radiation to thermal

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Pei, Long. "Evaluation of environmental impacts of buildings in China." Electronic Thesis or Diss., Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLM068.

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Le processus d'urbanisation en Chine exerce une forte pression sur l’environnement. Le plus fort potentiel de réduction de ces impacts correspond aux décisions prises lors de la conception du bâtiment, qui peuvent s’appuyer sur des outils de simulation numérique. Cette thèse est consacrée à l’étude de trois conditions aux limites liées à l'évaluation de la performance énergétique et environnementale des bâtiments en Chine : - Le sol : un modèle de pompe à chaleur couplée au sol est proposé, et couplé à un modèle d'échangeur de chaleur géothermique permettant le calcul rapide de la réponse d’un

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Šperka, Radim. "Posouzení energetické náročnosti objektu pro vzdělávání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231283.

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This thesis deals with the processing of an energy audit of the selected building for daily education. The target of this thesis is an evaluation of the current situation of the building, it means the evaluation of the thermal-technical qualities and energy consuption. For the initial state new measures will be suggested to reduce the energy consuption. One of the measures will be a proposal for an alternative way of supplying of the thermal energy, using the thermal pump. These suggested saving measures will be evaluated, including basic economic analysis.

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Psimopoulos, Emmanouil. "Smart control of PV and exhaust air heat pump systems in single-family buildings." Licentiate thesis, Uppsala University, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:du-32581.

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Recently, decentralized household photovoltaic (PV) systems have become more affordable and there is a tendency to decrease subsidies for the PV excess electricity fed into the grid. Therefore, there is growing interest in methods to increase the self-consumption (SC), which is the part of the electricity produced by PV and directly consumed on buildings. It has been found that battery storage is an effective way to achieve this. When there is a heat pump system installed, thermal energy storage using the thermal mass of the building or hot water tanks, can also be used to increase the househo

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Cervera, Vázquez Javier. "Control and energy optimization of ground source heat pump systems for heating and cooling in buildings." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/66748.

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[EN] In a context of global warming concern and global energy policies, in which heating and cooling systems in buildings account for a significant amount of the global energy consumption, ground source heat pump (GSHP) systems are widely considered as being among the most efficient and comfortable heating and cooling renewable technologies currently available. Nevertheless, both an optimal design of components and an optimal operation of the system as a whole become crucial so that these systems can have a significant contribution to the attenuation of the global energy problem. The overall

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