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Experimental Study of an Automobile Exhaust Heat-Driven Adsorption Air-Conditioning Laboratory Prototype by Using Palm Activated Carbon-Methanol

2010; Taylor & Francis; Volume: 16; Issue: 2 Linguagem: Inglês

10.1080/10789669.2010.10390901

1938-5587

Leo Sing Lim, Mohammad Omar Abdullah,

Heat Transfer and Optimization

Abstract Adsorption air-cooling systems powered by waste heat or solar heat can help to reduce the use of ozone-depleting substances, such as chlorofluorocarbons (CFCs) and hydro-chlorofluorocarbons (HCFCs). In recent years, these systems have faced increasing interest in many fields because they are quiet, long lasting, inexpensive to maintain, and environmentally friendly. This paper presents a laboratory prototype of an automobile adsorption air-conditioning system powered by exhaust heat, which has been successfully built and tested in the laboratory. The working pair used is a locally produced palm-derived activated carbon with methanol. Experimental results obtained show that, by having a cycle time of 20 minutes, an average chilled-air temperature of around 73.0°XF (22.6°XC) is achieved when the cooling coil temperatures fell between 49°XF to 58°XF (9.5°XC to 14.7°XC). The coefficient of performance (COP) and specific cooling power (SCP) of this prototype are approximately 0.19 and 614 Btu/h·lb (396.6 Wkg−1), respectively.