Reference : Modelling the thermal efficiency of condensing boilers working in steady-state conditions

	Document type :	Scientific conferences in universities or research centers : Scientific conference in universities or research centers
	Discipline(s) :	Engineering, computing & technology : Energy
	To cite this reference:	http://hdl.handle.net/2268/35739

Title :	Modelling the thermal efficiency of condensing boilers working in steady-state conditions
Language :	English
Author, co-author :	Makaire, Danielle [Université de Liège - ULg > Département d'aérospatiale et mécanique > Thermotechnique >]
	Ngendakumana, Philippe [Université de Liège - ULg > Département d'aérospatiale et mécanique > Thermotechnique >]
Publication date :	May-2010
Page number :	2
Audience :	International
Event name :	21st "journées d'études" of the Belgian Section of the Combustion Institute
Event date :	from 10 to 11 May 2010
Event organizer :	Thermotechnique, Université de Liège
Event place (city) :	Liège
Event country :	Belgium
Keywords :	[en] Condensing boiler ; thermal efficiency ; modelling
Abstract :	[en] The structure of the model is similar to the model of a conventional boiler model with a main counterflow gas-water heat exchanger (HX1), at which a condensing heat exchanger is added (HX2). The case losses to the ambient is neglected. Prior to the second heat exchanger (HX2), the exhaust gas are converted to equivalent wet air as the wet heat exchanger is simulated by a cooling coil used in air treatment. The model has been validated experimentally on gas- and oil-fired boilers. Calculated thermal efficiencies agree very well with experimental results.
Funders :	Région wallonne : Direction générale des Technologies, de la Recherche et de l'Energie - DGTRE
Name of the research project :	COMBU-III-Ulg
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/35739

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