Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluating energy efficient buildings : Energy- and moisture performance considering future climate change
One of the greatest challenges the world is facing is climate change. The need of reduction of energy use and an increased use of renewable energy in buildings constitutes important climate change mitigation measures.The objective of this research is to investigate methodologies and performance indicators for the evaluation of energy and moisture performance of buildings, including co-benefits which may occur in “green buildings”. Furthermore, the objective is to identify a methodology for evaluation of the energy and moisture performance of buildings, including co-benefits.This work was set out with a historical review of building envelopes for residential buildings followed by a literature review and case studies to investigate how energy performance, moisture conditions and green co-benefits may be calculated. An evaluation method based on multi criteria decision analysis (MCDA) was developed and tested.The study of the existing residential building stock shows that it is not possible to analyse a single reference building that would cover a majority of the existing buildings, e.g. renovation potentials. A set of different reference buildings and constructions are needed to enable further studies, which may investigate different possibilities related to renovation.Results also show that the relative share of transmission heat transfer losses due to thermal bridges increases when the heat resistance of a building envelope is increased. Hence, thermal bridges must be given more attention in the design of buildings.The term “energy performance” of buildings is often used today, and it is generally alleged that it refers to the annual energy use per conditioned living area. However, differences exist in building regulations in different countries and in definitions of Net Zero Energy Buildings. In relation to “moisture performance”, no international or European standard or framework for assessing and presenting moisture performance has been found within this study. Quantifying and including green co-benefits may ...
Evaluating energy efficient buildings : Energy- and moisture performance considering future climate change
One of the greatest challenges the world is facing is climate change. The need of reduction of energy use and an increased use of renewable energy in buildings constitutes important climate change mitigation measures.The objective of this research is to investigate methodologies and performance indicators for the evaluation of energy and moisture performance of buildings, including co-benefits which may occur in “green buildings”. Furthermore, the objective is to identify a methodology for evaluation of the energy and moisture performance of buildings, including co-benefits.This work was set out with a historical review of building envelopes for residential buildings followed by a literature review and case studies to investigate how energy performance, moisture conditions and green co-benefits may be calculated. An evaluation method based on multi criteria decision analysis (MCDA) was developed and tested.The study of the existing residential building stock shows that it is not possible to analyse a single reference building that would cover a majority of the existing buildings, e.g. renovation potentials. A set of different reference buildings and constructions are needed to enable further studies, which may investigate different possibilities related to renovation.Results also show that the relative share of transmission heat transfer losses due to thermal bridges increases when the heat resistance of a building envelope is increased. Hence, thermal bridges must be given more attention in the design of buildings.The term “energy performance” of buildings is often used today, and it is generally alleged that it refers to the annual energy use per conditioned living area. However, differences exist in building regulations in different countries and in definitions of Net Zero Energy Buildings. In relation to “moisture performance”, no international or European standard or framework for assessing and presenting moisture performance has been found within this study. Quantifying and including green co-benefits may ...
Evaluating energy efficient buildings : Energy- and moisture performance considering future climate change
Berggren, Björn (Autor:in)
21.05.2019
Hochschulschrift
Elektronische Ressource
Englisch
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