American Journal of Applied Sciences

Thermodynamic Analysis of an Absorption/Compression Refrigeration System Using Geothermal Energy

L. Kairouani and E. Nehdi

DOI : 10.3844/ajassp.2005.914.919

American Journal of Applied Sciences

Volume 2, Issue 5

Pages 914-919


This article presents the potential use and exploration of geothermal energy for cooling applications using a combined absorption/compression system. The considered system uses R134a for the compression part and the cool water-ammonia for the absorption part of the installation. The geothermal temperature source is in the range 343-349K, the condensation temperature is 308 K, and in order to produce ice, the R134a evaporation temperature is 263 K. The COP is about 5.4. Therefore, based on the typical geothermal energy sources in Tunisia which present a refrigeration potential power of 9.1 MW, the quantity of ice that could be produced is about 82 tons per hour. The greenhouse gas emissions should thus be reduced by about 5884 tons of CO2 per year, which represents (59%).


© 2005 L. Kairouani and E. Nehdi. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.