A SOLAR ENERGY POWERED SYSTEM FOR THE PRODUCTION OF COLD

摘要

In a system for the production of cold comprising an absorption cooling system with an evaporator (1) from which coolant is supplied in the vapour 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). The humidity absorbing compound in the absorber tubes (13) is in a direct thermal contact with the evaporator tubes (15) of a secondary self-circulating coolant circuit, in which a solar energy actuated blocking valve device is connected in a supply line between a condenser (20) and the evaporator tubes (15).