Numerical simulation and performance assessment of a low capacity solar assisted absorption heat pump coupled with a sub-floor system |
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| Authors: | A.A. Argiriou C.A. Balaras S. Kontoyiannidis E. Michel |
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| Affiliation: | aDepartment of Physics, Section of Applied Physics, University of Patras, GR-265 00 Patras, Greece;bGroup Energy Conservation, Institute for Environmental Research and Sustainable Development, National Observatory of Athens, I. Metaxa and Vas. Pavlou, GR-152 36 Palaia Penteli, Greece;cComite Scientifique et Technique des Industries Climatiques (COSTIC), rue A. Lavoisier, Z.I. St Christophe F-040000, France |
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| Abstract: | A prototype low capacity (10 kW) single stage Li–Br absorption heat pump (AHP), suitable for residential and small building applications has been developed as a collaborative result between various European research institutes and industries. The primary heat source for the AHP is supplied from flat plate solar collectors and the hot/chilled water from the unit is delivered to a floor heating/cooling system. In this paper we present the simulation results and an overview of the performance assessment of the complete system. The calculations were performed for two building types (high and low thermal mass), three climatic conditions, with different types of solar collectors and hot water storage tank sizes and different control systems for the operation of the installation. The simulations were performed using the thermal simulation code TRNSYS. The estimated energy savings against a conventional cooling system using a compression type heat pump was found to be in the range of 20–27%. |
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| Keywords: | Absorption heat pump Solar collectors Floor heating and cooling Simulations |
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