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Performance of a solar-powered air conditioning system in Hong Kong

Journal Article · · Solar Energy (Journal of Solar Energy Science and Engineering); (United States)
To study the feasibility of utilizing solar power for comfort cooling in Hong Kong, a solar-powered absorption air-conditioning system was designed and successfully constructed on the campus of the University of Hong Kong (HKU). The system consisted of a flat-plate collector array with a surface area of 38.2 m{sup 2}, a 4.7-kW nominal cooling capacity LiBr-H{sub 2}O absorption chiller, a 2.75-m{sup 2} hot-water storage tank, a cooling tower, a fan-coil unit, an electrical auxiliary heater, a data-acquisition system and the associated control systems. In the present paper, the design of the HKU solar-powered air-conditioning system is described in detail and its performance over an entire cooling season is also discussed and compared with similar systems in Italy and Singapore. It was found that the HKU solar air-conditioning system had an annual system efficiency of 7.8% and an average solar fraction of 55%.
OSTI ID:
5214689
Journal Information:
Solar Energy (Journal of Solar Energy Science and Engineering); (United States), Journal Name: Solar Energy (Journal of Solar Energy Science and Engineering); (United States) Vol. 48:5; ISSN SRENA; ISSN 0038-092X
Country of Publication:
United States
Language:
English