Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijrefrig.2004.11.011
Title: Experimental investigation of silica gel-water adsorption chillers with and without a passive heat recovery scheme
Authors: Wang, X. 
Chua, H.T.
Ng, K.C. 
Keywords: Adsorption systems
COP
Experiment
Heat recovery
Improvement
Silica gel
Water
Issue Date: Aug-2005
Source: Wang, X., Chua, H.T., Ng, K.C. (2005-08). Experimental investigation of silica gel-water adsorption chillers with and without a passive heat recovery scheme. International Journal of Refrigeration 28 (5) : 756-765. ScholarBank@NUS Repository. https://doi.org/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 °C, cooling-water inlet temperature of 29.4 °C and chilled-water inlet temperature of 12.2 °C. © 2004 Elsevier Ltd and IIR. All rights reserved.
Source Title: International Journal of Refrigeration
URI: http://scholarbank.nus.edu.sg/handle/10635/60245
ISSN: 01407007
DOI: 10.1016/j.ijrefrig.2004.11.011
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