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Performance analysis of a heat pump assisted drying system
Author(s) -
Almeida Manuel S. V.,
Gouveia Márcio C.,
Zdebsky Suzana R.,
Alberto José,
Parise R.
Publication year - 1990
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440140404
Subject(s) - heat pump , hybrid heat , air source heat pumps , gas compressor , heat exchanger , work (physics) , process engineering , heat recovery ventilation , energy consumption , nuclear engineering , mechanical engineering , heat capacity rate , vapor compression refrigeration , coefficient of performance , environmental science , materials science , thermodynamics , engineering , heat spreader , refrigerant , electrical engineering , physics
The paper describes a simulation model developed to predict the performance of drying systems assisted by vapour‐compression heat pumps. The heat is used to preheat the air stream before it enters the drying chamber. Energy consumption is thus reduced, as the heat pump is capable of delivering more energy as heat than it in fact consumes as input work. Ambient air provides the heat source. A computer program, based on simplified modelling of components (compressor, heat exchangers and drying chamber) has been developed. Results have been produced for a typical application, revealing that a considerable reduction in energy consumption can be obtained with the use of a heat pump. The effect of air flow rate on system performance is also studied.