摘要：A closed-cycle solar-powered adsorption cooling system is *** system is mainly composed of the evacuated tubular solar collectors with an area of 150 m^2,two adsorption chillers with a rated cooling capacity of 15 kW,a cooling tower,fan coils and circulating *** experiments were carried out to study the operating characteristics and the performance of the *** is found that the operation of the system presents wave characteristics because of low water *** water temperatures of the inlet and the outlet of the solar collector array cyclically swing since the water entering the solar collector array comes directly from the adsorption ***,the inlet water temperature of the adsorption chillers varies ***,the cooling effect of the system is *** with an open-cycle system,the closed-cycle system has the advantage of a high electric COP（coefficient of performance）because of the reduced use of circulating pumps.