ORBi: Parys Wout - Assessing overall heating efficiency of office buildings

Reference : Assessing overall heating efficiency of office buildings


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Energy
	To cite this reference:	http://hdl.handle.net/2268/83950

Title :	Assessing overall heating efficiency of office buildings
Language :	English
Author, co-author :	Parys, Wout [Katholieke Universiteit Leuven - KUL > Department of civil Engineering > Division of Buildindg Physics > >]
	Bertagnolio, Stéphane [Université de Liège - ULg > Département d'aérospatiale et mécanique > Thermodynamique appliquée >]
	Saelens, Dirk [Katholieke Universiteit Leuven - KUL > Department of Civil Engineering > Division of Building Physics > >]
	Hens, Hugo [Katholieke Universiteit Leuven - KUL > Department of Civil Engineering > Division of Building Physics > >]
Publication date :	13-Dec-2010
Main document title :	8th Conference on System Simulation in Buildings
Editor :	Lemort, Vincent
	Andre, Philippe
	Bertagnolio, Stéphane
On invitation :	No
Audience :	International
Event name :	8th Conference on System Simulation in Buildings
Event date :	December 13th - 15th, 2010
Event organizer :	University of Liège - Thermodynamics Laboratory
Event place (city) :	Liège
Event country :	Belgium
Abstract :	[en] The current methodology applied to estimate system efficiencies oversimplifies the complex interaction between the building, the occupants and the system. By detailed modelling of the building and the system, it is possible to define system efficiencies at the building level as a function of the system type and the building characteristics. In this study, the performance of a simple heating system in a middle-sized office building is simulated. The monthly average total efficiency, defined at the building level, proves to be very well correlated with the monthly ratio of heat gains over heat losses of the building. At ratios over 0.6, the efficiency falls sharply. This is mainly due to declining control efficiency. This secondary effect can annul partly the targeted increase in energy efficiency of well insulated and airtight buildings.
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/83950

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