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Performance of multi‐bed sorption heat pump systems
Author(s) -
ZHENG W.,
WOREK W. M.,
NOWAKOWSKI G.
Publication year - 1996
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/(sici)1099-114x(199604)20:4<339::aid-er159>3.0.co;2-n
Subject(s) - sorption , heat pump , sorbent , coefficient of performance , packed bed , heat recovery ventilation , adsorption , process engineering , environmental science , waste management , materials science , heat exchanger , thermodynamics , chemistry , engineering , chemical engineering , mechanical engineering , physics , organic chemistry
Traditional designs of solid‐sorbent sorption heat pumps consist of two beds, where one bed is regenerating while the other is adsorbing. The performance of traditional solid sorption heat pumps can be improved by designing the system with multiple beds. Employing the concept of multi‐beds, the beds can be preheated using the energy from other beds in the system before they are fully regenerated by an external heat source. Likewise, the beds can be precooled before the adsorption process begins. In this paper, the performance of the three‐bed and four‐bed solid sorption heat pumps are evaluated and compared to a traditional two‐bed system. The results show that the cooling capacity of a three‐bed system is significantly higher than a two‐bed system, while the COP only improves slightly. However, the performance of a four‐bed system (i.e., both COP and cooling capacity) improves significantly, as compared to the two‐bed system.