Comparative Analysis of Ejector Refrigeration System Powered with Engine Exhaust Heat using R134a and R245fa

Year 2019, Volume: 3 Issue: 1, 13 - 17, 20.03.2019

Alper Yılmaz Arif Emre Aktaş

https://doi.org/10.26701/ems.430831

Cited By: 2

Abstract

An ejector refrigeration (ER) system
using exhaust waste heat of a heavy vehicle engine is investigated. A program
is developed using engineering equation solver software and it is used to make
the calculations of the system. The system is taking all the efficiencies of
system’s components into account. Refrigerants R134a and R245fa are used for
the comparative simulation of the system. The pressure at the exit of the pump
is varied from 6 to 14 MPa and 3 to 10 MPa for R134a and R245fa, respectively.
It can be concluded that COP (coefficient of performance) of the system
gradually increases with the increase in pump exit pressure. Results show that,
the performance of the system would be higher if R245fa is preferred rather
than R134a with the given operating conditions. 

Keywords

COP, ejector refrigeration, heavy vehicle, air conditioning.

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