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

被引：4
|
作者：
Santa, Robert [1 ]
机构：
[1] Univ Dunaujvaros, Dept Mech Engn, Tancsics Mihaly U 1-a, H-2400 Dunaujvaros, Hungary
来源：
PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING | 2021年 / 65卷 / 04期
关键词：
heat pump; IHX; R1234yf; R134a; COP; DROP-IN REPLACEMENT; EXERGY ANALYSIS; PERFORMANCE; EXCHANGER; R513A; R450A; ALTERNATIVES; MIXTURE; R1234ZE(E); ENERGY;
D O I：
10.3311/PPme.18390
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
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 %.
引用
收藏
页码：363 / 373
页数：11
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