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Experimental study of performance improvement of a four-bed adsorption chiller by using heat-and-mass recovery
journal contribution
posted on 2023-05-17, 14:45 authored by Ng, KC, Xiaolin WangXiaolin Wang, Lin, YS, Saha, BB, Koyama, S, Akisawa, A, Kashiwagi, TThe efficacy of a four-bed adsorption chiller has been studied experimentally with respect to a simple but yet effective passive heat and mass recovery schemes. It substantially improves the adsorption chiller COP by as much as 30% over a broad range of cycle time with a wide heat source, coolant and chilled water temperatures. Two schemes have been considered here: Firstly, only the mass recovery is achieved by pressure equalization between the concomitantly cooled adsorber and heated desorber, exploiting the intrinsic vapor-uptake potential by pressure swing that remains in the adsorbent at the end of a half-cycle. Secondly, when both the heat and mass recovery schemes are employed at a rating point of maximum cooling capacity, the chiller COP could increase further to as much as 48%. These improvements are performed without additional hardware changes to the adsorption chiller. (c) 2006 Elsevier Ltd. All rights reserved.
History
Publication title
International Journal of Heat and Mass TransferVolume
49Issue
19-20Pagination
3343-3348ISSN
0017-9310Department/School
School of EngineeringPublisher
ElsevierPlace of publication
USARepository Status
- Restricted