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Heat Transfer Research
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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2014006892
pages 311-332

EXPERIMENTAL INVESTIGATION OF A SMALL-SCALE THERMALLY DRIVEN PRESSURIZED ADSORPTION CHILLER

Wai Soong Loh
Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576
Azhar Bin Ismail
Water Desalination and Reuse Center, 4700 King Abdullah, University of Science and Technology (KAUST), Twuwal 23955-6900
Kim Choon Ng
Department of Mechanical Engineering, National University of Singapore; Water Desalination and Reuse Center, 4700 King Abdullah, University of Science and Technology (KAUST), Twuwal 23955-6900
Won Gee Chun
Department of Nuclear and Energy, Jeju National University, Jeju, Korea

ABSTRACT

This paper describes the successful operation of an adsorption cycle in a miniaturized adsorption chiller (AD). The experiments show that the bench-scale pressurized adsorption chiller (PAC) has been successfully designed, commissioned, and tested. Experimental results at various heat fluxes, half-cycle operation time intervals, and a cooling load of up to 24 W are also presented. A COP ranging from 0.05 to 0.15 is achieved depending on the parameters of the experimental conditions. Most importantly, the cooling performance of the PAC is achieved at a low encasement temperature that is below ambient. Besides having a high cooling density, the PAC has almost no major moving parts except for the fan of the condenser and it permits quiet operation as compared to other active coolers.


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