Analysis of the Performance of a GAX Hybrid (Solar - LPG) Absorption Refrigeration System Operating with Temperatures from Solar Heating Sources

published Jan 23, 2013 - 9 pages

This paper presents the analysis of the experimental tests performed with an absorption refrigeration advanced Solar-GAX system, designed for 10.5 kW (3 Ton) of cooling using ammonia-water mixture. The system designed for operation at heat source temperatures of around 200°C, consists of an absorber and generator of a falling film type and air cooled finned tube condenser and absorber, being an option for areas with water scarcity. Heat source temperatures of 160°C were established to si

This paper presents the analysis of the experimental tests performed with an absorption refrigeration advanced Solar-GAX system, designed for 10.5 kW (3 Ton) of cooling using ammonia-water mixture. The system designed for operation at heat source temperatures of around 200°C, consists of an absorber and generator of a falling film type and air cooled finned tube condenser and absorber, being an option for areas with water scarcity. Heat source temperatures of 160°C were established to simulate the conditions of using solar thermal concentrating technology to supply heat the system, this means the system operating at partial load. Cooling capacities from 3 to 7 kW were obtained, with an average coefficient of performance (COP) of 0.37. Thermal stability was rapidly reached, after only 15 minutes of operation.

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