Experimental investigation on mass flow characteristics of R245fa through electronic expansion valve

被引：21

作者：

Chen, Ting ^{[1
]}

Cha, Dong An ^{[2
]}

Kwon, Oh Kyung ^{[1
,2
]}

机构：

[1] Korea Univ Sci & Technol, Korea Inst Ind Technol Campus, Adv Energy & Technol, Cheonan 31056, South Korea

[2] Korea Inst Ind Technol, Thermal&fluid Syst Grp, Cheonan 31056, South Korea

来源：

APPLIED THERMAL ENGINEERING | 2017年 / 125卷

关键词：

EEV; R245fa refrigerant; Mass flow rate; Mass flow coefficient; GENERALIZED CORRELATION; NEURAL-NETWORK; HEAT-PUMP; NEW-MODEL; R407C; R22; R410A; DEVICES;

D O I：

10.1016/j.applthermaleng.2017.06.127

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, the mass flow rate characteristics of R245fa refrigerant flowing through electronic expansion valves (EEV) under varying operating conditions are studied experimentally. It is found that the mass flow rate increases with increasing EEV opening, condensing temperature, subcooling temperature, and orifice diameter. Based on the measured experimental data, two empirical correlations for mass flow rate prediction of R245fa through EEVs are proposed using the power-law correlation and the polynomial fit correlation. Predicted data of the polynomial fit method showed more consistency with the experimental results compared to that of power-law correlation, and 96.6% of the predicted mass flow rates deviate from the experimental data within 10%. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：111 / 117

页数：7

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