THEORETICAL STUDY OF HEAT PUMP SYSTEM USING R744/R1234YF AS REFRIGERANT

被引：0

作者：

Ju, Fujun ^{[1
]}

Fan, Xiaowei ^{[2
]}

Chen, Yaping ^{[1
]}

机构：

[1] Southeast Univ, Sch Energy & Environm, Nanjing, Jiangsu, Peoples R China

[2] Zhongyuan Univ Technol, Sch Energy & Environm, Zhengzhou, Peoples R China

来源：

PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2015, VOL 8B | 2016年

关键词：

heat pump; zeotropic mixtures; R744; R1234yf; exergy efficiency; PERFORMANCE; WORKING;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, the eco-friendly zeotropic mixture, R744/R1234yf was chosen as the alternative refrigerant in the instant heat pump water heater system. The cycle performance of heat pump was analyzed theoretically under the nominal working condition of heat pump system. The prediction results show that the new mixture has significant advantages for the instant heat pump with a large heat-sink temperature lift, and there exists an optimal mass fraction of R744/R1234yf, at which the maximum COPh should be obtained. The optimal mass fraction of R744/R1234yf is 17/83 and the system COPh should be attained to 4.29.

引用

页数：4

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