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Thermodynamic Analysis for Vapour Compression Refrigeration System by Considering Internal Irreversibility with the Help of Designed Computer Software

Ankur Geete*, A. I. Khandwawala**

* Assistant Professor, Department of Mechanical Engineering, S. D. Bansal College of Technology, Indore, Madhya Pradesh, India.

** Retired Professor, Department of Mechanical Engineering, SGSITS, Indore, Madhya Pradesh, India.

Periodicity:February - April'2015
DOI : https://doi.org/10.26634/jme.5.2.3250

Abstract

This work is based on vapour compression refrigeration system. In this research paper, entransy analysis, entropy generation analysis, exergy analysis and coefficient of performance of the system are analyzed. For these analyses, computer software is developed and visual basic language is used to develop this software. The developed software is used to analyze VCR system for different parameters at various operating conditions. Input energy ratio (W ), entransy r dissipation ratio (G ), entropy generation ratio (S ), exergy ratio (φ ) and COP ratio (COP ) are evaluated at different dr gr r r source and sink temperatures. These analyses are also done at different heat capacitances of condenser and evaporator. Then finally, performance characteristic curves are generated for VCR system. These curves help to identify those operating conditions at which optimum performance of VCR system can be achieved. This research work can be concluded as - at maximum source/sink temperatures (320K/273K), entransy dissipation and exergy both quantities are minimum with respect to designed temperatures (310K/263K). And for maximum condenser conductance/minimum evaporator conductance (8/2), entransy dissipation and exergy both quantities are again minimum.

Keywords

Entransy Analysis, Entropy Generation, Internal Irreversibility, VCR (Vapour Compression Refrigeration), Cycle and Visual Basic Software

How to Cite this Article?

Geete, A., and Khandwawala, A. I. (2015). Thermodynamic Analysis for Vapour Compression Refrigeration System by Considering Internal Irreversibility with the Help of Designed Computer Software. i-manager’s Journal on Mechanical Engineering, 5(2), 22-28. https://doi.org/10.26634/jme.5.2.3250

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