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System impact of energy efficient building refurbishment within a district heated region
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik. School of Technology and Business Studies, Dalarna University, 791 88, Falun, Sweden.
2016 (engelsk)Inngår i: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 106, s. 45-53Artikkel i tidsskrift (Fagfellevurdert) Published
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Abstract [en]

The energy efficiency of the European building stock needs to be increased in order to fulfill the climate goals of the European Union. To be able to evaluate the impact of energy efficient refurbishment in matters of greenhouse gas emissions, it is necessary to apply a system perspective where not only the building but also the surrounding energy system is taken into consideration. This study examines the impact that energy efficient refurbishment of multi-family buildings has on the district heating and the electricity production. It also investigates the impact on electricity utilization and emissions of greenhouse gases. The results from the simulation of four energy efficiency building refurbishment packages were used to evaluate the impact on the district heating system. The packages were chosen to show the difference between refurbishment actions that increase the use of electricity when lowering the heat demand, and actions that lower the heat demand without increasing the electricity use. The energy system cost optimization modeling tool MODEST (Model for Optimization of Dynamic Energy Systems with Time Dependent Components and Boundary Conditions) was used. When comparing two refurbishment packages with the same annual district heating use, this study shows that a package including changes in the building envelope decreases the greenhouse gas emissions more than a package including ventilation measures. 

sted, utgiver, år, opplag, sider
2016. Vol. 106, s. 45-53
Emneord [en]
Energy efficiency, District heating system, Refurbishment, Simulation, Greenhouse gases, Buildings
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URN: urn:nbn:se:umu:diva-124340DOI: 10.1016/j.energy.2016.03.043ISI: 000378659700005OAI: oai:DiVA.org:umu-124340DiVA, id: diva2:1052288
Tilgjengelig fra: 2016-12-06 Laget: 2016-08-04 Sist oppdatert: 2018-06-09bibliografisk kontrollert

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