Comparative Analysis of Heat Pump System with IHX Using R1234yf and R134a

Authors

  • Róbert Sánta
    Affiliation

    Department of Mechanical Engineering, University of Dunaújváros, H-2400 Dunaújváros, Táncsics Mihály u. 1/a, Hungary

https://doi.org/10.3311/PPme.18390

Abstract

This research presents an energy performance analysis of the heat pump system with internal heat exchanger (IHX). The mathematical model of the heat pump outlined in this paper has been created by the author, it is steady-state with lumped parameters. The experimental validation of the model has been carried out using R1234yf and R134a as refrigerant. The aim of this work is to compare the energy performance in a wide range of operating conditions of a monitored heat pump system using both refrigerants. Finally, the heating capacity for R1234yf was lower from 0.63 % to 7.54 % compared with R134a, while the compressor power was similar from 0.12 % to 3.51 %. The COP values of R1234yf were lower than those obtained of R134a, ranging from 1.39 % to 4.22 %.

Keywords:

heat pump, IHX, R1234yf, R134a, COP

Published Online

2021-09-24

How to Cite

Sánta, R. “Comparative Analysis of Heat Pump System with IHX Using R1234yf and R134a”, Periodica Polytechnica Mechanical Engineering, 65(4), pp. 363–373, 2021. https://doi.org/10.3311/PPme.18390

Issue

Vol. 65 No. 4 (2021)

Section

Articles