Energy and Exergy Analysis of Cascade Refrigeration System  Using MC22 and MC134 on HTC, R404A and R502 on LTC

Hendri; Roswati Nurhasanah; Prayudi; Suhengki

Authors

Hendri Department of Mechanical Engineering, Fakultas Teknologi dan Bisnis Energi, Institut Teknologi PLN, Jakarta, Indonesia
Roswati Nurhasanah Department of Mechanical Engineering, Fakultas Teknologi dan Bisnis Energi, Institut Teknologi PLN, Jakarta, Indonesia
Prayudi Department of Mechanical Engineering, Fakultas Teknologi dan Bisnis Energi, Institut Teknologi PLN, Jakarta, Indonesia
Suhengki Department of Mechanical Engineering, Fakultas Teknologi dan Bisnis Energi, Institut Teknologi PLN, Jakarta, Indonesia

Keywords:

cascade refrigeration system, refrigerant hydrocarbon, COP, total loss exergy, exergy efficiency

Abstract

Low temperature storage with a single refrigeration system only stable up to 228 K temperature. The purpose of this study is to develop a low temperature cool storage with cascade refrigeration system, with hydrocarbon refrigerants in terms of energy and exergy analysis. Experimental research in laboratories using refrigerant hydrocarbon MC22 and MC134 on the hight temperature circuit, and R404A and R502 using on low temperature circuit. Condenser heat exchanger using a type of exchanger plate. Resulting from this research, obtained that result the MC22/R404A, MC22/R502 and MC134/R404A refrigerant pair can reach a temperature of 220 K. The MC22/R404A refrigerant pair has god performance, COP, total loss exergy, and exergy efficiency is better than MC22/R502, and MC134/R04A refrigerant pairs.