Assessment of the Impact of using Zeotropic Mixture on the Thermodynamic Performance of Organic Rankine Cycle Integrated Vapor Compression Refrigeration System

Abstract

The present paper assesses the impact of the zeotropic mixture such as R245fa/ R152a, butane/R152a, and R245fa / butane on the performance of an organic Rankine cycle (ORC) - Vapor compression refrigeration (VCR) system. In this work, the system performance indicators like the coefficient of performance (COP) of the VCR subsystem and ORC-VCR system, and the exergetic efficiency of the ORC-VCR system have been evaluated. The results from the analysis indicate that the zeotropic mixture of R245fa/butane exhibits a maximum COP of 0.583 for the system and COP of 5.02 for the VCR subsystem for mixture ratios up to 0.46.