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Exergy analysis applied to performance of buildings in Europe
Sartor, Kevin; Dewallef, Pierre
2016In Energy and Buildings
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Keywords :
Exergy analysis; building performance; Exergy; CO2 reduction
Abstract :
[en] Energy performance of buildings generally assesses the energy consumption of buildings such as heating, domestic heat water, ventilation systems... However, this approach is based on the first law of thermodynamics and considers only the quantity of energy used without considering its “quality” and leads to a lack of information about the energy conversion processes. This is particularly true in the new low-energy buildings where sometimes high temperatures sources are used to meet low-temperature needs. The exergy analysis of a system, based on first and second thermodynamic laws, can be used to overcome this. In this work, it is proposed to compare the energy and the exergy consumption of several kinds of buildings to determine the best systems in terms of energy and exergy needs. The energy demand calculations are performed using the official software available in Belgium and some assumptions are implemented to consider the exergy approach. As exergy calculations require a reference state, some different climatic conditions are also investigated. Finally, some conclusions are discussed to rank the sources of energy and their related exergy losses.
Disciplines :
Energy
Author, co-author :
Sartor, Kevin ;  Université de Liège > Département d'aérospatiale et mécanique > Systèmes de conversion d'énergie pour un dévelop.durable
Dewallef, Pierre ;  Université de Liège > Département d'aérospatiale et mécanique > Systèmes de conversion d'énergie pour un dévelop.durable
Language :
English
Title :
Exergy analysis applied to performance of buildings in Europe
Publication date :
2016
Event name :
ECOS 2016: 29th international conference on Efficiency, Cost, Optimisation Simulation and Environmental Impact of Energy Systems
Event place :
Portoroz, Slovenia
Event date :
Du 20 au 23 juin 2016
Audience :
International
Journal title :
Energy and Buildings
ISSN :
0378-7788
eISSN :
1872-6178
Publisher :
Elsevier, Amsterdam, Netherlands
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 June 2016

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