System simulation of air-cooling single effect LiBr absorption refrigerating system driven by solar heat source

Abstract Air-cooling single-effect absorption refrigeration system has the characteristics of water saving, space saving and maintenance cost compared with water-cooling. In order to study the characteristics of air-cooled system, this paper uses Aspen Plus to build an air-cooled single-effect LiBr absorption refrigeration system with a cooling capacity of 23kW and adiabatic evaporation and adiabatic absorption, and the influence of temperature on the system at different condensing temperatures is studied. The results show that with the increase of generating temperature, the load increase of solution heat exchanger gradually slows down and then becomes faster, while the load increase of other equipment gradually slows down. After the system COP value rises to a certain value, it basically remains unchanged.