Operating Characteristics of Twin-Screw Refrigeration Compressor with Different Refrigerants Based on the Semi-Empirical Model

Li Yanpeng; Chen Zheyin; Wang Chuang; Ren Dawei; Xing Ziwen; Zhu Shizhe

doi:10.12465/j.issn.0253-4339.2025.02.074

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Operating Characteristics of Twin-Screw Refrigeration Compressor with Different Refrigerants Based on the Semi-Empirical Model

更新时间：2025-04-15

- Operating Characteristics of Twin-Screw Refrigeration Compressor with Different Refrigerants Based on the Semi-Empirical Model
- Journal of Refrigeration Vol. 46, Issue 2, Pages: 74-81(2025)
- 作者机构：
  
  1.西安交通大学能源与动力工程学院　西安　 710049
  2.冰轮环境技术股份有限公司　烟台　 264002
- 作者简介：
  
  Wang Chuang, male, associate professor, School of Energy and Power Engineering, Xi'an Jiaotong University, 86-13289227655, E-mail: chuangwang@xjtu.edu.cn. Research fields: advanced compressor and expander technology, optimization control and fault diagnosis of refrigeration systems.
- 基金信息：
  
  National Natural Science Foundation of China(51976148)
- DOI：10.12465/j.issn.0253-4339.2025.02.074
  CLC： TB61⁺1;TB652
- Received：14 March 2024，
  
  Revised：29 March 2024，
  
  Accepted：2024-07-18，
  
  Published：16 April 2025
- 稿件说明：
移动端阅览
Li Yanpeng, Chen Zheyin, Wang Chuang, et al. Operating Characteristics of Twin-Screw Refrigeration Compressor with Different Refrigerants Based on the Semi-Empirical Model[J]. Journal of refrigeration, 2025, 46(2): 74-81.
DOI：

Li Yanpeng, Chen Zheyin, Wang Chuang, et al. Operating Characteristics of Twin-Screw Refrigeration Compressor with Different Refrigerants Based on the Semi-Empirical Model[J]. Journal of refrigeration, 2025, 46(2): 74-81. DOI： 10.12465/j.issn.0253-4339.2025.02.074.

摘要

低温制冷行业已经进入了寻找环境友好、高效安全替代工质的新阶段。为分析采用不同制冷剂时压缩机的运行特性，提出一种含13个特征参数的修正半经验模型，实验研究了R22、R507和R744的变工况热力性能，并分别进行了特征参数识别与模型校核。验证结果表明：模型预测精度良好，输入功率与质量流量的平均相对误差为2.07%与1.17%。以某典型工况为例，对不同制冷剂的损失特性和效率随频率的变化趋势进行对比分析。结果表明：R744的压力损失、泄漏和功率损失较小，是综合性能最优的制冷剂；R507和R22的性能相近，但由于R507的压力损失更高且增长更剧烈，其效率衰减严重并在50 Hz以上频率段低于R22。研究旨在为采用不同工质压缩机的优化设计提供理论依据。

Abstract

The refrigeration industry is advancing towards environmentally friendly

efficient

and safe alternative refrigerants. To analyze compressor performance with various refrigerants

this study proposes a modified semi-empirical model with 13 characteristic parameters. Experiments were conducted with R22

R507

and R744 under variable operating conditions to identify parameters and validate the model. The experimental and simulated results showed strong agreement

with average relative errors of 2.07% for input power and 1.17% for mass flow rate. Using a typical operating condition

the losses and efficiencies of different refrigerants were compared at various frequencies. Results indicate that R744

with the lowest pressure

leakage

and power losses

demonstrated superior performance. While R507 and R22 showed similar efficiencies

the efficiency of R507 declined significantly at frequencies above 50 Hz due to increased pressure losses. This study provides a theoretical basis for optimizing compressor designs for various refrigerants.

关键词

Keywords

references

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Related Institution

西安交通大学能动学院

冰轮环境技术股份有限公司

Suzhou Academy, Xi'an Jiaotong University

Department of Refrigeration and Cryogenic Engineering, Beijing University of Technology

School of Energy and Power Engineering, Zhengzhou University of Light Industry

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