Cost estimation of using an absorption refrigeration system with geothermal energy for industrial applications in El Salvador

Abstract

El Salvador is interested in improving the efficient utilization of its available resources, especially those that are environmentally friendly. Natural geothermal resources are available and have been used for commercial electrical production since 1975. Implementation of a project of installing and operating a cooling and refrigeration facility, using geothermal fluid as the heating source in combination with an absorption cycle, is being considered. The Lithium Bromide absorption cycle is thought to be feasible for cooling with a COP (coefficient of performance) of about 0.6. A refrigeration absorption cycle with a mixture of ammonia and water cannot be easily adapted to the climatic conditions of El Salvador, as it needs low cooling temperatures for equipment, such as condenser and absorber. It is recommended that a combined application of a cooling and a refrigeration cycle is studied in more detail.