• Exergy Analysis of Vapour Compression Refrigeration System
• Author  :  Prateek D. Malwe, Bajirao S. Gawali and Shekhar D. Thakre
• Pages   :  54-57
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• Abstract

Energy consists of two parts, one is available energy and other is unavailable energy. The available energy is useful part of energy from which maximum useful work is obtained which is known as exergy. Unavailable energy accounts for the losses and irreversibility’s occurring in the system. Exergy analysis is an assessment technique for systems and processes that is based on the second law of thermodynamics. It has been increasingly applied over the last several decades largely because of its advantages over energy analysis. With exergy analysis, more meaningful efficiencies are evaluated, because they give a measure of the approach to the ideal and inefficiencies in a process. It also quantifies the types, causes, and locations of losses. Improvement in exergy efficiency will results in saving of electricity required to operate the system by minimizing the exergy loses. In this article, the role of exergy analysis in assessing and improving energy systems like vapour compression refrigeration system is examined. System taken under consideration is refrigeration tutor. Also, exergy and its use as an analysis technique are briefly described.

Keywords: Energy, Available energy, Unavailable energy, Exergy, Exergy efficiency, Exergy analysis.

Article published in International Journal of Thermal Technologies, Vol.4, No.2 (June- 2014)