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Experimental investigation of silica gel - water adsorption chillers with and without a passive heat recovery system

Citation

Wang, X and Chua, HT and Ng, KC, Experimental investigation of silica gel - water adsorption chillers with and without a passive heat recovery system, International Journal of Refrigeration, 28, (5) pp. 756-765. ISSN 0140-7007 (2005) [Refereed Article]

DOI: doi:10.1016/j.ijrefrig.2004.11.011

Abstract

We experimentally show that for the same heat exchanger inventory allocation, a four-bed adsorption chiller delivers a 12% higher ultimate cooling capacity than its two-bed counterpart. In addition it delivers a significantly improved quality of instantaneous cooling than a two-bed chiller at the same cooling capacity. The COP-enhancing feature of a passive heat recovery scheme that does not involve additional pumping action or valves is experimentally proven. It improves the COPs of a two-bed chiller and a four-bed chiller by as much as 38 and 25%, respectively, without any effect on their cooling capacities. The highest Cops achieved with a two-bed and four-bed chillers are 0.46 +/- 0.02 and 0.45 +/- 0.02, respectively. These are measured at a hot-water inlet temperature of 85 T, cooling-water inlet temperature of 29.4 degrees C and chilled-water inlet temperature of 12.2 degrees C.

Item Details

Item Type:Refereed Article
Research Division:Engineering
Research Group:Other Engineering
Research Field:Engineering not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in Engineering
Author:Wang, X (Associate Professor Xiaolin Wang)
ID Code:81227
Year Published:2005
Web of Science® Times Cited:40
Deposited By:Engineering
Deposited On:2012-11-27
Last Modified:2012-11-27
Downloads:0

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