Relevant bibliographies by topics / District Heating Systems / Dissertations / Theses
To see the other types of publications on this topic, follow the link: District Heating Systems.

Dissertations / Theses on the topic 'District Heating Systems'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'District Heating Systems.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Put, Joris. "The European District Heating Database and Mapping European District Heating Systems." Thesis, Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-15114.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kunz, Jakob. "Dynamic behavior of district heating systems /." [S.l.] : [s.n.], 1994. http://library.epfl.ch/theses/?nr=1234.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Fredriksson, Victor, and Bane Gluhajic. "Heating systems in small houses : A comparison between geothermal heating and district heating." Thesis, KTH, Byggteknik och design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-253799.

Full text
Abstract:
District heating and geothermal heating are in present times two established heating systems that are often compared against each other. The purpose of this work is to describe which factors influence the choice of heating system during the planning stage and what the costs are for each system. In this paper, a typical house model has been developed and used as a basis for the comparison of both systems. The comparison has been made in the form of energy calculations in the energy calculation program BV2, where heat requirements and regulatory requirements for energy performance have been comp
APA, Harvard, Vancouver, ISO, and other styles
4

Wernstedt, Fredrik. "Multi-Agent Systems for District Heating Management." Licentiate thesis, Karlskrona : Blekinge Institute of Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00258.

Full text
Abstract:
This thesis investigates the applicability of multi-agent systems as a control approach for district heating systems. The consumers, i.e., the heat exchange systems, in current district heating systems are purely reactive devices and have typically no communication capabilities. They are only able to make local decisions without taking into account the global situation in the system. In this work, the possibilities of a new type of heat exchanger systems that has an open software environment and communication capabilities are explored. Operators of district heating systems have several, often
APA, Harvard, Vancouver, ISO, and other styles
5

Gong, Mei, Göran Wall, and Sven Werner. "Energy and exergy analysis of district heating systems." Högskolan i Halmstad, Energiteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-20298.

Full text
Abstract:
The concept of exergy is defined and applied to district heating systems. The influence from different reference state conditions and system boundaries are explained in some detail. The aim is to show the simplicity and value of using the concept of exergy when analyzing district heating processes. The exergy factor is introduced and applied for a number of Swedish and Danish district heating systems. This varies from 14.2% to 22.5% for Swedish district heating systems. The higher the exergy factor, the more the exergy losses in the passive conversion towards space heating. Large losses reveal
APA, Harvard, Vancouver, ISO, and other styles
6

Wernstedt, Fredrik. "Multi-agent systems for distributed control of district heating systems /." Karlskrona : Blekinge Institute of Technology, 2005. http://www.bth.se/fou/Forskinfo.nsf/allfirst2/51e3dfb98bb6ba6bc1257107002f6d29?OpenDocument.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kamal, Majd. "Potential for low temperature district heating system : Integrating 4th generation district heating system with existing technology." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-35816.

Full text
Abstract:
This project presents a feasibility study and an investigation of the potential for low temperature district heating system in Västerås. The investigation treats integrations possibilities for 4GDH (4th Generation District Heating) in Kungsängens area in Västerås, which is undergoing a large-scale building-up and construction.  The study is conducted for the company Mälarenergi AB. The advantages of 4GDH technology are identified and analyzed, where energy effectiveness and economic benefits aspects were concluded. Problems with existing technology and higher cooling demand expectations drive
APA, Harvard, Vancouver, ISO, and other styles
8

Lindgren, Nicolas, and Karl Brogren. "Production optimization for district heating : Short-term planning of district heating grid in Gävle, Sweden." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-44268.

Full text
Abstract:
Energy systems with a high portion of renewable energy from wind and solar power can suffer from fluctuations in production due to weak winds or cloudy weather, which may affect the electricity price. When producing heat and power in a combined heat and power plant, an additional heat storage tank can be used to store the heat surplus which is obtained when the power production is high, and the heat demand is low. To optimize heat and power production economically, short-term planning can be applied. Short-term planning covers the production in the near future of 1-3 days. The optimization in
APA, Harvard, Vancouver, ISO, and other styles
9

Rodriguez, German Darío Rivas. "Decentralized Architecture for Load Balancing in District Heating Systems." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3329.

Full text
Abstract:
Context. In forthcoming years, sustainability will lead the development of society. Implementation of innovative systems to make the world more sustainable is becoming one of the key points for science. Load balancing strategies aim to reduce economic and ecological cost of the heat production in district heating systems. Development of a decentralized solution lies in the objective of making the load balancing more accessible and attractive for the companies in charge of providing district-heating services. Objectives. This master thesis aims to find a new alternative for implementing decentr
APA, Harvard, Vancouver, ISO, and other styles
10

Gebremedhin, Alemayehu. "Regional and industrial co-operation in district heating systems /." Linköping : Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2003/tek849.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Erdoğmuş, Abdullah Berkan Özerdem M. Barış. "Economic assessment of Balçova-Narlıdere geothermal district heating systems/." [s.l.]: [s.n.], 2003. http://library.iyte.edu.tr/tezler/master/makinamuh/T000259.rar.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Filatov, Artem. "Concentrating Collector for Torsång District Heating System." Thesis, Högskolan Dalarna, Energiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:du-28539.

Full text
Abstract:
In this thesis report for Dalarna University in Borlange and Absolicon company the study of a possibility to add an array of concentrating solar collectors to a Torsång district heating system was done. The whole idea of this work was to make a simulation of this kind of system, trying to get 15-20% of solar fraction, and make an economical evaluation. At the same time, another goal was to make two comparisons: between concentrating and flat-plate collector in the same system, and between two tools for collector analysis – Polysun and Absolicon tool, based on TRNSYS, which was designed to esti
APA, Harvard, Vancouver, ISO, and other styles
13

Aoun, Nadine. "Modeling and flexible predictive control of buildings space-heating demand in district heating systems." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC104.

Full text
Abstract:
La gestion de la demande en chauffage des bâtiments raccordés à des réseaux de chaleur s'effectue classiquement au moyen d’une courbe de chauffe : lorsque la température extérieure chute, la température de départ de l’eau alimentant le circuit de chauffage interne est relevée. Ce mode de contrôle, appelé régulation par loi d’eau, présente des atouts en termes de simplicité et de robustesse, mais ne tient pas compte de l'inertie thermique du bâtiment et ne permet donc pas une modulation de sa demande. La modulation de la demande en chauffage se définit comme l'action de contrôle consistant à mo
APA, Harvard, Vancouver, ISO, and other styles
14

Martin-Du, Pan Oliver. "Operational performance assessment of decentralised energy and district heating systems." Thesis, Loughborough University, 2015. https://dspace.lboro.ac.uk/2134/17456.

Full text
Abstract:
District heating systems can contribute to reducing the UK's CO2 emissions. This thesis investigates the operational performance of current district heating (DH) systems with the existing and a possible future energy sector. The main contributions to knowledge are:  Operational, financial and exergy performance assessments of three functioning DH systems and one decentralised energy (DE) technology  A methodology to optimise a DH system in a resource efficient and cost effective way The aims of DH systems are to provide heat, reduce CO2 emissions, ensure energy security by operating in a res
APA, Harvard, Vancouver, ISO, and other styles
15

Ghafghazi, Saeed. "Multi criteria evaluation of wood pellet utilization in district heating systems." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/31556.

Full text
Abstract:
The hypothesis that this thesis investigates is that “the wood pellet is a competitive primary energy source option for generating district heat in Vancouver, BC”. The competitiveness of the wood pellet as an energy source is evaluated by investigating a major district heating project in Vancouver, BC in which the wood pellet option was compared with natural gas, sewer heat, and geothermal heat. It is observed that in addition to technical and economic factors, environmental and social acceptability criteria play an important role in the selection of the energy source for district heating syst
APA, Harvard, Vancouver, ISO, and other styles
16

Chou, Lu-chien. "Drag reducing cationic surfactant solutions for district heating and cooling systems /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487758178238587.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

NOUSSAN, MICHEL. "Wood biomass CHP in district heating systems: simulation and operation analysis." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2606554.

Full text
Abstract:
This research work is focused on the development of a simulation model for the operational analysis of wood biomass CHP (combined heat and power) units supplying district heating systems. The integrated approach that has been adopted offers the possibility of considering the effect of each system component during the different operation conditions that can occur during the year. The aim of the model is to provide a support for different situations: the design of the components of the system, the analysis of real operation to match the requested performance and the local energy planning conside
APA, Harvard, Vancouver, ISO, and other styles
18

Gunnarsson, David. "Business strategies for the district heating sector in southern Sweden." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105731.

Full text
Abstract:
The heat demand in Sweden has stagnated and district heating companies must take action to sustain in the market. Based on this background this study combines a PEST and SWOT analysis to produce a basis to suggest general strategies suitable for district heating companies in southern Sweden. The analysis found that both investments into activities outside of the heating market, as well as further development of current systems, are viable options. Increasing the awareness and knowledge about district heating companies was also identified as a factor that could entail several benefits.
APA, Harvard, Vancouver, ISO, and other styles
19

Vivas, David. "Heat Pump System using Waste Energy for a District Heating Application." Thesis, University of Gävle, Department of Technology and Built Environment, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-630.

Full text
Abstract:
<p>Nowadays, reducing energy usage as well as reducing environmental impacts due to energy efficiency measurements is very common in the industrial sector. The objective of these measurements is to achieve better sustainable energy systems.</p><p>Sandvik Materials Technology (SMT) AB, one of the business areas of the enterprise Sandvik AB, is not an exception in that field.</p><p>The aim of this thesis project is to analyze how to use waste energy from the cooling of a steel plant for an internal district heating (DH) system within the industrial area of SMT AB located in Sandviken, Sweden. In
APA, Harvard, Vancouver, ISO, and other styles
20

Amiri, Shahnaz. "Economic and Environmental Benefits of CHP-based District Heating Systems in Sweden." Doctoral thesis, Linköpings universitet, Energisystem, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-92807.

Full text
Abstract:
Future energy systems and thus the climate are affected by many factors, such as energy resources, energy demand, energy policy and the choice of energy technologies. Energy systems of the future are facing three main challenges; the steady growth of global energy demand, the energy resource depletion, as well as the increasing emissions of carbon dioxide (CO2) and other greenhouse gases and their impact on climate change. To meet the mentioned challenges with sustainability in mind, actions that increase energy efficiency and choosing an energy-efficient energy system which is cost efficient
APA, Harvard, Vancouver, ISO, and other styles
21

JARRE, MATTEO. "Data analysis and modeling of users consumption profiles in District Heating Systems." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2695412.

Full text
Abstract:
District heating represents an optimal solution to increase the efficiency of the heating sector, which accounts for a large share of the total primary energy consumption in Europe. However, the heat load demand that is generated by served buildings has a strong influence on the efficient operation of the generation plants and the network. When Combined Heat and Power units are used, the heat load shape has a close connection also with the amount of electricity that can be produced, thus having a strong impact on the system’s economic sustainability. If renewable energy sources are integrated
APA, Harvard, Vancouver, ISO, and other styles
22

Tunzi, Michele. "Optimising the operation of hydronic heating systems in existing buildings for connection to low temperature district heating networks." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/38724/.

Full text
Abstract:
This thesis presents a new method developed to adapt existing hydronic systems in buildings to take advantage of low temperature district heating (LTDH). The work carried out was performed by extensive use of buildings’ energy modelling, validated through recorded data. Two different case studies were investigated and the dynamic heat demand profiles, simulated for each building, were used to evaluate plate radiators connected to single and double string heating loops. The method considered an optimisation procedure, based on supply and return temperatures, to obtain the required logarithmic m
APA, Harvard, Vancouver, ISO, and other styles
23

Provatas, Spyridon. "An Online Machine Learning Algorithm for Heat Load Forecasting in District Heating Systems." Thesis, Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3475.

Full text
Abstract:
Context. Heat load forecasting is an important part of district heating optimization. In particular, energy companies aim at minimizing peak boiler usage, optimizing combined heat and power generation and planning base production. To achieve resource efficiency, the energy companies need to estimate how much energy is required to satisfy the market demand. Objectives. We suggest an online machine learning algorithm for heat load forecasting. Online algorithms are increasingly used due to their computational efficiency and their ability to handle changes of the predictive target variable over t
APA, Harvard, Vancouver, ISO, and other styles
24

Lundgren, Joakim. "Performance of a new wood-chips fired boiler for small district heating systems." Licentiate thesis, Luleå, 2002. http://epubl.luth.se/1402-1757/2002/31.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Ebhuomhan, Sarah. "Effectiveness of using Organic Rankine cycle engine in small-scale district heating systems." Thesis, Linnéuniversitetet, Institutionen för byggd miljö och energiteknik (BET), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105294.

Full text
Abstract:
Co-production of electricity and heat using biomass is important in providing sustainable energy for the future. District heating systems, which are well established in Sweden, provide a great opportunity to co-produce electricity simultaneously. With small-scale district heating comprising majority of the district heating systems in Sweden, there is great potential for electricity production. The overall efficiency of the primary energy use of the cogeneration system of electricity and heat from district heating systems shows its sustainability advantage and energy benefits. The cost effectiv
APA, Harvard, Vancouver, ISO, and other styles
26

Nilsson, Daniel. "Analysis and simulation of systems for delivery of fuel straw to district heating plants /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5721-1.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Coss, Stefano. "Advanced methods for sustainable energy systems in operation and design of district heating networks." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2713812.

Full text
Abstract:
District heating networks (DHN) are an efficient way of providing thermal energy to consumers. Current state of the art shows that DHNs are developing towards smart thermal networks in integrated energy systems while their design is based upon the principles of sustainability. Based on that, this thesis covers two main research areas: Operation and design of district heating systems. In part A of this thesis, advanced methods for DHN operation are developed with the help of exergetic and thermoeconomic analysis. This includes the formulation of exergetic cost balances for graph-based network
APA, Harvard, Vancouver, ISO, and other styles
28

Coss, Stefano. "Advanced methods for sustainable energy systems in operation and design of district heating networks." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2018. http://www.theses.fr/2018IMTA0090/document.

Full text
Abstract:
Les réseaux de chauffage urbain (DHN) sont un moyen efficace de fournir de l'énergie thermique aux consommateurs. L'état actuel de la technique montre que les DHN évoluent vers des réseaux thermiques intelligents dans des systèmes énergétiques intégrés alors que leur conception est basée sur les principes de durabilité. Sur cette base, cette thèse couvre deux domaines de recherche principaux : Fonctionnement et conception des systèmes de chauffage urbain. Dans la partie A de cette thèse, des méthodes avancées pour le fonctionnement de la DHN sont développées à l'aide d'analyses exergétiques et
APA, Harvard, Vancouver, ISO, and other styles
29

Lidberg, Tina. "Influences from Building Energy Efficiency Refurbishment on a Regional District Heating System." Licentiate thesis, Högskolan i Gävle, Energisystem, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-26499.

Full text
Abstract:
Improving energy performance of existing buildings is an important part in decreasing energy use and in turn reduce the greenhouse gas emissions caused by human activity and the primary energy use. To be able to evaluate how energy refurbishment influences the greenhouse gas emissions and the primary energy use a wider system perspective is needed that puts the building in its context. This thesis deals with energy refurbishment packages performed on multi-family buildings within district heated areas and how they influence greenhouse gas emissions and primary energy use when the district heat
APA, Harvard, Vancouver, ISO, and other styles
30

Andersson, Therese. "The potential of utilizing geographic information systems for the district heating networks within Fortum Heat." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-211740.

Full text
Abstract:
This study is a thesis work at Uppsala University initiated by the Cross Country Team for Operate Networks at Fortum Heat. The team requested an analysis of the current situation of the functions, processes and systems regarding geographic information systems, GIS, for the district heating networks within Fortum Heat. GIS software is used to store, analyse and visualize information in digital maps. This study aims to investigate in which processes the use of GIS can contribute to facilitate and make operations more effective. The potential of utilizing GIS for the district heating networks was
APA, Harvard, Vancouver, ISO, and other styles
31

Eriksson, Robin. "Heat storages in Swedish district heating systems : An analysis of the installed thermal energy storage capacity." Thesis, Högskolan i Halmstad, Energivetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-31143.

Full text
Abstract:
District heating is the most common source of heating in Sweden and has played a crucial part in the country’s substantial reductions of carbon dioxide emissions. This recycling technology is ideal in order to use thermal energy as efficiently as possible and makes the goals set for a sustainable future more achievable. The future potential of this technology is therefore huge. Today, a lot of the district heating systems have installed heat storages in order to improve the systems reliability and performance. These heat storages have the potential to be utilized even further in the future by
APA, Harvard, Vancouver, ISO, and other styles
32

Öhrlund, Jack, and Catrin Östman. "DIGITALIZATION IS HEATING UP THE BUSINESS MODEL : A degree project regarding the impact of digitalization on a business model canvas within district heating." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-39808.

Full text
Abstract:
The purpose of this degree project is to analyze and investigate how digitalization will affect business modeling in the district heating business. The chosen approach to this degree project was an iterative, abductive method, in order to always use a feedback-analysis and to keep the project open for new findings. The interviews were a mix of a structured method and a qualitative approach. With the structured method, the findings from the interviews were similar and regarding the research topic, and the qualitative approach in some open questions led to matters that otherwise would have been
APA, Harvard, Vancouver, ISO, and other styles
33

Nordenstam, Lena. "Corporate and city GHG inventories : Impact on global CO2 emissionswhen considering electricity and CHP-based district heating." Licentiate thesis, Linköpings universitet, Energisystem, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-152490.

Full text
Abstract:
One initiative to reduce greenhouse gas (GHG) emissions involves developing standards for GHG inventories. Companies and cities (regions) can use GHG inventories to compile and report their GHG emissions. Standards for corporate and city GHG inventories often claim that GHG inventories can be used for identifying emissions opportunities, building reduction strategies and setting, measuring and reporting emissions targets. Attributional emissions factors are generally used in corporate and city GHG inventories. For purchased electricity, heat and steam, this means using average emission factors
APA, Harvard, Vancouver, ISO, and other styles
34

Sjödin, Jörgen. "Swedish district heating systems and a harmonised European energy market : means to reduce global carbon emissions /." Linköping : Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2003/tek795s.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Falk, Paul Michael [Verfasser], Peter [Akademischer Betreuer] Stephan, and Liselotte [Akademischer Betreuer] Schebek. "Evaluation of district heating systems based on exergy analysis / Paul Michael Falk ; Peter Stephan, Liselotte Schebek." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2018. http://d-nb.info/1160381771/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Poutiainen, Zacharias. "Short-Term Heat Load Forecasting in District Heating Systems : A Comparative Study of Various Forecasting Methods." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-265670.

Full text
Abstract:
Short term heat load forecasts are vital for optimal production planning and commitment of generation units. The generation utility also bares a balance responsibility toward the electricity market as a result of CHP generation. Sub-optimal load forecasts can lead to high costs relating to unit commitment, fuel usage and balancing costs. This thesis presents the empirical comparison of various models for 24h heat load forecasting. Five methods were investigated including four supervised machine learning algorithms; neural networks, support vector machines, random forests and boosted decision t
APA, Harvard, Vancouver, ISO, and other styles
37

Gustafsson, Mattias. "Evaluation of energy conserving measures in buildings connected to a district heating system : case studies in Gävle, Sweden." Licentiate thesis, Högskolan i Gävle, Energisystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-21398.

Full text
Abstract:
When different energy conserving measures are implemented for reducing energy use in buildings and the buildings are connected to district heating systems, it is important that an overall system analysis is made which takes into account the effects of total change of energy use due to the energy conserving measures. The method applied in this thesis uses hourly production data for the different production units in the district heating system in Gävle, Sweden. The merit order of the different production units is dependent on the electricity spot market price. To calculate the merit order, hourl
APA, Harvard, Vancouver, ISO, and other styles
38

Kallhovd, Magnhild. "Analysis on Methods and the Influence of Different System Data When Calculating Primary Energy Factors for Heat from District Heating Systems." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16354.

Full text
Abstract:
A steady growing global demand for energy and rising greenhouse gas emissions has resulted in several initiatives from the European Union with the purpose of increasing energy efficiency. A part of this strategy is the introduction of energy performance certificates for buildings, containing a numerical primary energy indicator. Another instrument is to encourage an increased use of cogeneration. As a member of the European Economic Area agreement, these events also affect Norway. The main aim of the project was to investigate how various relevant parameters influence the primary energy facto
APA, Harvard, Vancouver, ISO, and other styles
39

Eriksson, Niclas. "Predicting demand in districtheating systems : A neural network approach." Thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-175082.

Full text
Abstract:
To run a district heating system as efficiently as possible correct unit-commitmentdecisions has to be made and in order to make those decisions a good forecast ofheat demand for the coming planning period is necessary. With a high quality forecastthe need for backup power and the risk for a too high production are lowered. Thisthesis takes a neural network approach to load forecasting and aims to provide asimple, yet powerful, tool that can provide accurate load forecasts from existingproduction data without the need for extensive model building.The developed software is tested using real lif
APA, Harvard, Vancouver, ISO, and other styles
40

Larsson, Josefine. "Effect on district heating systems in Dalarna County from energy efficiency measures in buildings - a scenario study to 2050." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-170112.

Full text
Abstract:
Energi Intelligent is a program in Dalarna County with the purpose of finding ways of enhancing the efficiency of energy use and thereby be able to reach a more sustainable use of energy resources[1]. The basis of this program is the energy goal that has been prepared for Dalarna County published in Dalarnas miljömål[2].  The energy goal is divided into a number of intermediate goals, the sixth, Delmål 6, is to reduce energy consumption in buildings with 50 percent until 2050, and with 30 percent until 2025[3].   There are often a large number of different sectors involved that have got differ
APA, Harvard, Vancouver, ISO, and other styles
41

Bäcklund, Johannes. "Energieffektivisering av fjärrvärme- och fjärrkylanätet på campus i Umeå : Energy efficiency of the district heating and cooling systems on campus in Umeå." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-148393.

Full text
Abstract:
Detta examensarbete utfördes på uppdrag av Akademiska Hus som äger och förvaltar fastigheterna på campus i Umeå. Projektet bestod av att utifrån en övergripande bild på det interna fjärrvärme- och fjärrkylanätet på campus, ta fram alternativa utformningar på systemet i syfte om att göra det mer energieffektivt. Systemets interna fjärrvärme- och fjärrkylanät VP100 och KB100 växlar över värme och kyla från Umeå Energi som sedan distribueras vidare till fjärrvärme- och fjärrkylacentraler på campus. Några av centralerna har egenproduktion där returledningen från KB100 går till en värmepump som pro
APA, Harvard, Vancouver, ISO, and other styles
42

RIETTO, LAURA. "Energy Systems Integration: from building scale to urban scale." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2679885.

Full text
Abstract:
The research activity presented in this thesis focuses on the heating energy demand assessment of a small urban district with buildings connected to the local District Heating Network (DHN). The main goal of the work consisted in determining effective actions that could be applied on both the heating system and on the envelope of five case study buildings in order to reduce the morning peak of the heating system and reduce also the overall energy demand for space heating. The outcomes of this research may be useful to assess the impact of the proposed improvements on the operation of a urban d
APA, Harvard, Vancouver, ISO, and other styles
43

Lundström, Lukas. "Heat demand profiles of buildings' energy conservation measures and their impact on renewable and resource efficient district heating systems." Licentiate thesis, Mälardalens högskola, Framtidens energi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-31495.

Full text
Abstract:
Increased energy performance of the building stock of European Union is seen as an important measure towards mitigating climate change, increasing resource utilisation efficiency and energy supply security. Whether to improve the supply-side, the demand-side or both is an open issue. This conflict is even more apparent in countries such as Sweden with a high penetration of district heating (DH). Many Swedish DH systems have high share of secondary energy resources such as forest industry residuals, waste material incineration and waste heat; and resource efficient cogeneration of electricity i
APA, Harvard, Vancouver, ISO, and other styles
44

Wennberg, Tim. "Fjärrvärme och frånluftsvärmepump : Systemets lönsamhet och primärenergitalets inverkan." Thesis, Högskolan i Gävle, Energisystem och byggnadsteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-29713.

Full text
Abstract:
Kombinationen av fjärrvärme och frånluftsvärmepump (FVP) har blivit allt vanligare i Sverige. Detta kombinerade värmesystem är väl lämpat för att reducera energianvändningen i befintliga fastigheter med mekanisk frånluftventilation som saknar värmeåtervinning. Dock kan en FVP-installation leda till högre returtemperaturer i fjärrvärmenätet vilket det ofta finns avgifter för i dagsläget. För att främja fjärrvärmeanvändning sommartid använder fjärrvärmeleverantören sig av säsongsvarierande prismodeller i vilket fjärrvärmepriset varierar under en del av året. Genom att stänga av FVP sommartid och
APA, Harvard, Vancouver, ISO, and other styles
45

Eriksson, Stina. "Optimering av framledningstemperaturen i ett fjärrvärmenät genom lastmodellering och simulering." Thesis, Högskolan i Gävle, Energisystem och byggnadsteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-32790.

Full text
Abstract:
I Sverige är fjärrvärme den vanligaste uppvärmningsformen. Vatten värms upp i en fjärrvärmeanläggning och distribueras genom nedgrävda rör i marken, också kallat fjärrvärmenätet. En tillförlitlig energimodell anses vara ett bra och viktigt hjälpmedel för analyser av värmeförluster som uppstår i ett fjärrvärmenät vid distribueringen av det heta vattnet. Sandviken Energis styrning av framledningstemperaturen sker idag utifrån en inställd styrkurva som tar hänsyn till vad det är för utetemperatur. Det var av intresse för studien att jämföra denna styrning med en simulerad framledningstemperatur o
APA, Harvard, Vancouver, ISO, and other styles
46

Magnusson, Dick. "District Heating in a Liberalized Energy Market: A New Order? : Planning and Development in the Stockholm Region, 1978-2012." Doctoral thesis, Linköpings universitet, Tema teknik och social förändring, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-88708.

Full text
Abstract:
This dissertation analyses how district heating systems in the Stockholm region have evolved and developed during the period 1978-2012. The thesis comprises four papers analyzing how district heating has been handled in municipal and regional planning. The examination explores how actors have worked together to create regional, interconnected district heating systems with economic, technological and environmental benefits. An investigation is undertaken on the effects of liberalization (and the subsequent commercialization of the district heating market) on the planning and cooperation of thes
APA, Harvard, Vancouver, ISO, and other styles
47

Jönsson, Linnea. "Thermal energy storage systems in an energy company's district heating system : Exploring ways of handling daily and seasonal heat load variations in Höganäs." Thesis, Högskolan i Halmstad, Energivetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-29800.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Amiri, Shahnaz, and Bahram Moshfegh. "Possibilities and consequences of deregulation of the European electricity market for connection of heat sparse areas to district heating systems." Linköpings universitet, Energisystem, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-58385.

Full text
Abstract:
The objective of the study is to analyse the conditions for connection of residential buildings in heat sparse areas to district heating systems in order to increase electricity production in municipal combined heat and power plants. The European electricity market has been assumed to be fully deregulated. The relation between connection of heat sparse areas, increased electricity and heat production as well as electricity prices, fuel prices and emissions rights is investigated. The results of the study show that there is potential to expand the district heating market to areas with lower hea
APA, Harvard, Vancouver, ISO, and other styles
49

Smith, Bryan C. "Flow birefringence, nuclear magnetic resonance and corrosion measurements on drag reducing cationic surfactant solutions for district heating and cooling systems /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487780865409286.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Klugman, Sofia. "Energy systems analysis of Swedish pulp and paper industries from a regional cooperation perspective : Case study modeling and optimization." Doctoral thesis, Linköpings universitet, Energisystem, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-11673.

Full text
Abstract:
The industrial sector uses about one third of the energy end-use in the world. Since energy use in many cases highly affects both the local and global environment negatively, it is of common interest to increase energy efficiency within industries. Furthermore, seen from the industrial perspective, it is also important to reduce dependency on energy resources with unstable prices in order to obtain economic predictability. In this thesis, the energy-saving potential within the chemical pulp and paper sector is analyzed. One market pulp mill and one integrated pulp and paper mill were studied a
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the bibliographies on the topic 'District Heating Systems' for other source types:
Journal articles Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography