Abstract
This paper describes the main features of a developed absorption/compression hybrid air-conditioning system meeting the request of utilizing the exhaust thermal energy from co-generation system with relatively small capacity of about 50 kW. In the hybrid system, the refrigerating effect of about 20 degree-C brought by a single effect absorption cycle with Water/Lithium Bromide system cools the condenser of the vapor compression type air-conditioner with R410A. This cascaded combination not only brings the compression power lowering but also makes thermally insulated type absorption applicable to the air-cooled absorption refrigeration. The design point of 56 kW cooling capacity machine driven by steam whose saturated temperature is 120 degree-C is determined so as to minimize the electric power consumption of the system within the safety operation range of the absorption cycle. The pool boiling test results of the generator core shows that the separate plate type reaches the generator design point. The performance test results of prototype with the cooling capacity of 4 kW almost pass the rating specifications.
