Experimental Study on Flow Coefficient of Refrigeration Electronic Expansion Valve

Chen Xiao; Liu Jinping; Feng Zhongbo; Kang Zhijun; He Yuchen

doi:10.12465/j.issn.0253-4339.2025.06.098

您当前的位置：

首页 >

文章列表页 >

Experimental Study on Flow Coefficient of Refrigeration Electronic Expansion Valve

更新时间：2025-12-03

- Experimental Study on Flow Coefficient of Refrigeration Electronic Expansion Valve
- Journal of Refrigeration Vol. 46, Issue 6, Pages: 98-104(2025)
- 作者机构：
  
  1.华南理工大学电力学院　广州　 510641
  2.广东省能源高效清洁利用重点实验室　广州　 510641
  3.浙江盾安人工环境股份有限公司　诸暨　 311835
- 作者简介：
  
  Liu Jinping, male, professor, School of Electric Power Engineering, South China University of Technology, 86-13501546214, E-mail: mpjpliu@scut.edu.cn. Research fields: efficient phase transfer heat and high-density energy storage.
- 基金信息：
- DOI：10.12465/j.issn.0253-4339.2025.06.098
  CLC： TB61⁺1;TB657
- Received：11 July 2024，
  
  Revised：2024-08-21，
  
  Accepted：26 September 2024，
  
  Published：16 December 2025
- 稿件说明：
移动端阅览
Chen Xiao, Liu Jinping, Feng Zhongbo, et al. Experimental Study on Flow Coefficient of Refrigeration Electronic Expansion Valve[J]. Journal of Refrigeration, 2025, 46(6): 98-104.
DOI：

Chen Xiao, Liu Jinping, Feng Zhongbo, et al. Experimental Study on Flow Coefficient of Refrigeration Electronic Expansion Valve[J]. Journal of Refrigeration, 2025, 46(6): 98-104. DOI： 10.12465/j.issn.0253-4339.2025.06.098.

摘要

已有的电子膨胀阀流量系数关联式拟合的实验数据有限，导致在将关联式应用于不同口径阀门的流量系数计算时产生较大偏差。针对该问题，对电子膨胀阀的流量特性进行了实验研究。结果表明：阀门口径、阀门开度和过冷度为影响电子膨胀阀流量系数的主要影响因素。流量系数随阀门开度的增大而降低，在开度相同的情况下，具有大口径的DPF2.0阀比小口径的DPF1.65阀流量系数更大，且流量系数随过冷度的增大而增大。根据实验所得数据拟合出了考虑过冷度

sub

和流通面积

的流量系数关联式，应用所拟合关联式计算相对误差在±5%以内。

Abstract

Owing to the limited amount of test data available for flow coefficient correlation fitting

there is a large deviation when applying the correlation formula to the flow coefficient calculation of valves with different diameters. To solve this problem

the flow characteristics of an electronic expansion valve were studied experimentally. The experimental results indicated that the valve diameter

valve opening

and subcooling were the main factors affecting the flow coefficient of the electronic expansion valve. The flow coefficient decreased with an increase in the valve opening. The flow coefficient of a valve with a large diameter (DPF2.0) was greater than that of a valve with a small diameter (DPF1.65) under the same opening degree

and the flow coefficient increased with the subcooling degree. A correlation formula for the flow coefficient that considered subcooling degree

sub

and flow area

was fitted using the experimental data

and the relative deviation was calculated to be within ±5% when using this fitting correlation formula.

关键词

Keywords

references

KIM L S , SON K D , SARKER D , et al . An assessment of models for predicting refrigerant characteristics in adiabatic and non-adiabatic capillary tubes [J ] . Heat and Mass Transfer , 2011 , 47 ( 2 ): 163 - 180 .

金以慧 . 过程控制 [M ] . 北京 : 清华大学出版社 , 1993 .

( JIN Yihui . Process control [M ] . Beijing : Tsinghua University Press , 1993 .)

LI H , JEONG S K , YOON J I , et al . An empirical model for independent control of variable speed refrigeration system [J ] . Applied Thermal Engineering , 2008 , 28 ( 14/15 ): 1918 - 1924 .

张晓程 . 空调系统大时滞过程控制方法综述 [J ] . 洁净与空调技术 , 2015 ( 3 ): 29 - 32 .

( ZHANG Xiaocheng . Large delay process control methods of air conditioning systems [J ] . Contamination Control & Air-Conditioning Technology , 2015 ( 3 ): 29 - 32 .)

陈芝久 . 新学科“制冷系统热动力学”初探 [J ] . 制冷学报 , 1987 , 8 ( 4 ): 1 - 10 .

( CHEN Zhijiu . Primary research for new subject “thermo-dynamic of refrigeration system” [J ] . Journal of Refrigeration , 1987 , 8 ( 4 ): 1 - 10 .)

由玉文 , 吴爱国 , 张志刚 , 等 . 基于最小稳定过热度的制冷系统变负荷优化控制 [J ] . 低温与超导 , 2011 , 39 ( 11 ): 1 - 6 .

( YOU Yuwen , WU Aiguo , ZHANG Zhigang , et al . Optimal control of the variable load refrigeration system based on the minimum stable superheat [J ] . Cryogenics & Superconductivity , 2011 , 39 ( 11 ): 1 - 6 .)

ELLIOTT M S , RASMUSSEN B P . On reducing evaporator superheat nonlinearity with control architecture [J ] . International Journal of Refrigeration , 2010 , 33 ( 3 ): 607 - 614 .

李鑫 , 夏宇栋 , 景妮洁 , 等 . 变频压缩式制冷系统控制方法研究综述 [J ] . 杭州电子科技大学学报(自然科学版) , 2021 , 41 ( 6 ): 50 - 59 .

( LI Xin , XIA Yudong , JING Nijie , et al . A review of control methods for variable frequency vapor compression refrigeration systems [J ] . Journal of Hangzhou Dianzi University (Natural Sciences) , 2021 , 41 ( 6 ): 50 - 59 .)

马善伟 . 制冷系统稳定性研究综述 [J ] . 上海第二工业大学学报 , 2004 , 21 ( 2 ): 36 - 44 .

( MA Shanwei . Research on the stability of refrigeration system review [J ] . Journal of Shanghai Second Polytechnic University , 2004 , 21 ( 2 ): 36 - 44 .)

田长青 , 窦春鹏 , 杨新江 , 等 . 制冷系统的稳定性 [J ] . 流体机械 , 2002 , 30 ( 4 ): 44 - 47 .

( TIAN Changqing , DOU Chunpeng , YANG Xinjiang , et al . The stability of refrigeration systems [J ] . Fluid Machinery , 2002 , 30 ( 4 ): 44 - 47 .)

LIANG Nan , SHAO Shuangquan , XU Hongbo , et al . Instability of refrigeration system-a review [J ] . Energy Conversion and Management , 2010 , 51 ( 11 ): 2169 - 2178 .

CHOI J W , LEE G , KIM M S . Numerical study on the steady state and transient performance of a multi-type heat pump system [J ] . International Journal of Refrigeration , 2011 , 34 ( 2 ): 429 - 443 .

SHAO Shuangquan , XU Hongbo , TIAN Changqing . Dynamic simulation of multi-unit air conditioners based on two-phase fluid network model [J ] . Applied Thermal Engineering , 2012 , 40 : 378 - 388 .

LIU Cichong , ZHANG Ji , GUI Yongchao , et al . Mass flow characteristics and empirical modeling of R744 flow through electronic expansion device [J ] . International Journal of Refrigeration , 2018 , 86 : 82 - 88 .

KNABBEN F T , MELO C , HERMES C J L . A study of flow characteristics of electronic expansion valves for household refrigeration applications [J ] . International Journal of Refrigeration , 2020 , 113 : 1 - 9 .

MA Shanwei , ZHANG Chuan , CHEN Jiangping , et al . Experimental research on refrigerant mass flow coefficient of electronic expansion valve [J ] . Applied Thermal Engineering , 2005 , 25 ( 14/15 ): 2351 - 2366 .

KIM M K , LEE H , JEONG J H . Evaluation of correlations for mass flow rate of refrigerant through electronic expansion valve in air—water heat pump system using R32 [J ] . International Journal of Refrigeration , 2023 , 151 : 267 - 277 .

马善伟 , 张川 , 陈江平 , 等 . 电子膨胀阀制冷剂质量流量系数的试验研究 [J ] . 上海交通大学学报 , 2006 , 40 ( 2 ): 282 - 285 .

( MA Shanwei , ZHANG Chuan , CHEN Jiangping , et al . Experimental study on electronic expansion valve refrigerant flow coefficient [J ] . Journal of Shanghai Jiao Tong University , 2006 , 40 ( 2 ): 282 - 285 .)

安贝贝 , 胡海洋 , 姚晶珊 . 制冷系统中电子膨胀阀流量系数的实验研究 [J ] . 机电信息 , 2013 ( 6 ): 117 - 119 .

( AN Beibei , HU Haiyang , YAO Jingshan . Experimental study on flow coefficient of electronic expansion valve in refrigeration system [J ] . Mechanical and Electrical Information , 2013 ( 6 ): 117 - 119 .)

张川 , 马善伟 , 陈江平 , 等 . 电子膨胀阀制冷剂流量系数经验模型的试验研究 [J ] . 机械工程学报 , 2005 , 41 ( 11 ): 63 - 69 .

( ZHANG Chuan , MA Shanwei , CHEN Jiangping , et al . Experimental research on empirical model of flow coefficient of electronic expansion valve [J ] . Chinese Journal of Mechanical Engineering , 2005 , 41 ( 11 ): 63 - 69 .)

Flow equations for sizing control valves: ANSI/ISA 75.01.01-2007 [S ] . US : American National Standard , 2007 .

KIM J , JEONG J H . Flow distribution characteristics according to variation of flow resistance in the header supplying working fluid to multiple fan coil units [J ] . Korean Journal of Air-Conditioning and Refrigeration Engineering , 2021 , 33 ( 8 ): 413 - 421 .

MOFFAT R J . Describing the uncertainties in experimental results [J ] . Experimental Thermal and Fluid Science , 1988 , 1 ( 1 ): 3 - 17 .

CHEN T , CHA D A , KWON O K . Experimental investigation on mass flow characteristics of R245fa through electronic expansion valve [J ] . Applied Thermal Engineering , 2017 , 125 : 111 - 117 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect of Ultrasonic Field on Crystallization of Supercooling Aqueous Solution

Study on the Frosting Characteristics of Bare Copper Surface UnderWeak Alternating Magnetic Field

Experimental Study and Numerical Simulation on Reed Valve Flow Coefficient

Related Author

Li Yueling

Wang Jinhui

Lin Li

Li Xuelai

Liu Xi

Zhang Rui

Bennacer Rachid

Georges EL ACHKAR

Related Institution

College of Chemical Engineering, Fuzhou University

Research Institute of Photocatalysis, Fuzhou University

Tianjin Key Lab of Refrigeration Technology, Tianjin University of Commerce

School of Energy and Power Engineering, Xi’an Jiaotong University

Guangdong Research Institute of Xi'an Jiaotong University in Shunde

Address：10/F, Yindu Mansion, 67 Fucheng Road, Haidian Dist, Beijing, China Postal code：100142
Tel：010-68711412 Email：editor@car.org.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰