Abstract: A solar collector absorption cooling system with a primary cooling circuit the evaporator (1) of which is connected with absorber ducts (26) in an absorber formed as a solar collector (12), said absorber ducts (26) including a coolant absorbing compound for the suction of coolant at night hours, and a secondary self-circulating cooling circuit with evaporator tubes (29) located in heat transferring contact with the absorber ducts (26) of the primary circuit to provide an enhanced cooling thereof. The absorber of the primary circuit is carried out as at least one sheet welded absorber panel (24, 25) and is accommodated in a solar collector frame (12) beneath and in parallel to a glass layer (15) facing the incident sun and to a thermal insulating layer (36) on the opposite side of the absorber panel.

Abstract: In a system for the production of cold comprising an absorption cooling system with an evaporator (1) from which coolant is supplied in the vapor state through an absorber (12) to a condenser (8), from which coolant is supplied in the liquid state to a coolant vessel (5) connected with the evaporator (1) the absorption cooling system is designed as a primary system operating periodically in a day and night cycle with the absorber (12) designed as a solar collector having a number of parallel absorber tubes (13) accommodating a humidity absorbing compound for the suction of coolant at night hours at a comparatively low temperature and delivery of coolant to the condenser (8) at day hours at a comparatively high temperature. The coolant transport to and from the absorber (12) takes place through a single tube connection (11).