ORBi: Andre Philippe - A contribution to the audit of an air-conditinioning system: modelling, simulation and benchmarking

Reference : A contribution to the audit of an air-conditinioning system: modelling, simulation and b...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Mechanical engineering
	To cite this reference:	http://hdl.handle.net/2268/19864

Title :	A contribution to the audit of an air-conditinioning system: modelling, simulation and benchmarking
Language :	English
Author, co-author :	Andre, Philippe [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Département des sciences et gestion de l'environnement >]
	Hannay, Cleide [Université de Liège > > Laboratoire de Thermodynamique > >]
	Hannay, Jules [Université de Liège - ULG > > Laboratoire de Thermodynamique > >]
	Lebrun, Jean [Université de Liège - ULg > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique >]
	Lemort, Vincent [Université de Liège - ULg > Département d'aérospatiale et mécanique > Turbomachines et propulsion aérospatiale >]
	Teodorese, Ion [Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de Thermodynamique > >]
Publication date :	2008
Journal title :	Building Services Engineering Research & Technology
Publisher :	SAGE Publications
Volume :	29
Issue/season :	1
Pages :	85-98
Audience :	International
ISSN :	0143-6244
Keywords :	[en] energy audit ; HVAC
Abstract :	[en] This paper intends to show how benchmarks can help in the audit of a HVAC system and how these benchmarks can be generated. The work presented is part of the European ‘AUDITAC’ project. How can an auditor declare that a given HVAC is ‘consuming too much’? He can’t make any judgment, if not having some reference, i.e. some ‘benchmarks’ available. Focus is given here to cooling regime, but even then, heating cannot be forgotten (for example, the remaining heating demand can be satisfied thanks some recovery on the condensers of the chillers). The dramatic question is: what should be the consumption(s) for such a building, in such a climate, with such occupancy, such internal loads and such actual indoor environment? Better than to look for a (very hypothetical) global weather index, similar to heating degree-days, it seems more rational to run a simulation model on a few thousands of hours, corresponding to one (or to several) cooling season(s). Current performances of simulation tools make this approach very expedient. The climate can then be considered as it is, without any simplification. The main simplification is still welcome on the system (buildingþHVAC) side, in order to get calculation robustness, easy understanding and easy parameter identification. In this perspective, the building has to be subdivided in a very limited number of zones and only a few components of the HVAC system have to be included in the simulation model, with as simple as possible control strategies.
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/19864
DOI :	10.1177/0143624407087789

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