Reference : Designing an air-to-air heat exchanger dedicated to single room ventilation with heat...
Scientific journals : Article
Engineering, computing & technology : Energy
http://hdl.handle.net/2268/212936
Designing an air-to-air heat exchanger dedicated to single room ventilation with heat recovery
English
Gendebien, Samuel mailto [Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques >]
Martens, Jonathan []
Prieels, Luc []
Lemort, Vincent mailto [Université de Liège > Département d'aérospatiale et mécanique > Systèmes énergétiques >]
In press
Building Simulation: An International Journal
Springer
Yes (verified by ORBi)
International
1996-3599
1996-8744
[en] ventilation ; heat recovery ; fan energy use ; air-to-air heat exchanger
[en] The present paper focuses on the development steps of heat exchangers dedicated to single room ventilation unit with heat recovery (SRVHR) by proposing a numerical approach. A methodology is suggested in order to determine the best trade-off between hydraulic and thermal performance given a specific geometry. The methodology consists in a mapping of the coefficient of performance (COP) of the unit. The latter is defined as the ratio between recovered heat and the fan energy use, given a specific indoor/outdoor temperature difference. However, the energy performance should not be the only criterion to be taken into account in the frame of the design steps of a heat recovery exchanger: technical, economic and acoustic aspects should also be considered. This numerical methodology is illustrated by means of a real example of a newly developed heat exchanger dedicated to a SRVHR. The optimization is first performed while using a semi-empirical model (based on the use of correlations and on a spatial division of the studied heat exchanger). The semi-empirical model allows for the creation of a COP map in order to identify the most effective geometry parameters for the heat exchanger. The decision concerning the final geometry is made accounting for the so-called technical, economic and acoustic considerations. A discussion on some parameters needed for the COP establishment is also proposed.
Researchers ; Professionals
http://hdl.handle.net/2268/212936
10.1007/s12273-017-0386-8

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