Reference : Exergy analysis applied to performance of buildings in Europe
Scientific journals : Article
Engineering, computing & technology : Energy
http://hdl.handle.net/2268/211672
Exergy analysis applied to performance of buildings in Europe
English
Sartor, Kevin mailto [Université de Liège > Département d'aérospatiale et mécanique > Systèmes de conversion d'énergie pour un dévelop.durable >]
Dewallef, Pierre mailto [Université de Liège > Département d'aérospatiale et mécanique > Systèmes de conversion d'énergie pour un dévelop.durable >]
1-Aug-2017
Energy and Buildings
Elsevier Science
148
348-354
Yes (verified by ORBi)
0378-7788
[en] Exergy analysis ; Building performance ; CO2 reduction ; District heating network ; Heat sources
[en] Energy performance of buildings generally assesses the energy consumption of buildings such as heating, domestic heat water, ventilation systems, etc. 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 and the related CO2 emissions 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.
Thermodynamics Laboratory
ULg
Researchers ; Professionals ; Students ; General public
http://hdl.handle.net/2268/211672
10.1016/j.enbuild.2017.05.026
; Building performance; Exergy; CO2 reduction; Heat sources

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