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Abstract
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Article Information:
Heat Transfer Analysis of a Flat-plate Solar Collector Running a Solid Adsorption Refrigerator
S. Thiao, C. Mbow and I. Youm
Corresponding Author: S. Thiao
Submitted: December 17, 2013
Accepted: January 02, 2014
Published: May 15, 2014 |
Abstract:
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Adsorption solar cooling appears to have prospect in the tropical countries. The present study is a theoretical investigation of the performance of a solar adsorption refrigerator using a flat-plate solar collector. The values of glass cover and absorber plate temperatures obtained from numerical solutions of heat balance equations are used to predict the solar coefficient of performance of the solar refrigerator. The simulation technique takes into account the variations of ambient temperature and solar radiation along the day. The effects of optical parameters of the glass cover such as absorption and transmission coefficients on glass cover and absorber plate temperatures and consequently on the coefficient of performance are analyzed. As a result, it is found that the absorber plate temperature is less to the absorption coefficient than the cover glass temperature. Also the thermal radiation exchange has more effect on the cover glass temperature. The higher values of COP are obtained between 11 and 13 h during the morning when the temperatures of the absorber plate and the ambient temperatures increase. Moreover the COP increases with the coefficient of transmission of the glass cover but the main parameter acting on the variations of the COP remains the temperature of the evaporator.
Key words: Absorber temperature, coefficient of performance, flat-plate solar collector, glass-cover temperature, mathematical model, optical parameters, solar refrigeration, simulation
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Cite this Reference:
S. Thiao, C. Mbow and I. Youm, . Heat Transfer Analysis of a Flat-plate Solar Collector Running a Solid Adsorption Refrigerator. Research Journal of Applied Sciences, Engineering and Technology, (19): 4130-4136.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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