Optimization of Involute Profile Parameters with Variable Base Circle for Scroll Compressors

Pan Shuli; Tang Jingchun; Zhou Pei; Sun Dongfang; Zhang Yu; Liu Xiangnong

doi:10.12465/j.issn.0253-4339.2025.02.082

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Optimization of Involute Profile Parameters with Variable Base Circle for Scroll Compressors

更新时间：2025-04-15

- Optimization of Involute Profile Parameters with Variable Base Circle for Scroll Compressors
- Journal of Refrigeration Vol. 46, Issue 2, Pages: 82-89(2025)
- 作者机构：
  
  合肥工业大学汽车与交通工程学院　合肥　 230009
- 作者简介：
  
  Tang Jingchun, male, associate professor, School of Automotive and Transportation Engineering, Hefei University of Technology, 86-13965051951, E-mail: tngjch@126.com. Research fields: study on the heat dynamics of refrigeration compressor.
- 基金信息：
  
  National Natural Science Foundation of China(52306194)
- DOI：10.12465/j.issn.0253-4339.2025.02.082
  CLC： TB61⁺1;TB652
- Received：25 December 2023，
  
  Revised：18 January 2024，
  
  Accepted：2024-03-12，
  
  Published：16 April 2025
- 稿件说明：
移动端阅览
Pan Shuli, Tang Jingchun, Zhou Pei, et al. Optimization of Involute Profile Parameters with Variable Base Circle for Scroll Compressors[J]. Journal of refrigeration, 2025, 46(2): 82-89.
DOI：

Pan Shuli, Tang Jingchun, Zhou Pei, et al. Optimization of Involute Profile Parameters with Variable Base Circle for Scroll Compressors[J]. Journal of refrigeration, 2025, 46(2): 82-89. DOI： 10.12465/j.issn.0253-4339.2025.02.082.

摘要

变基圆渐开线涡旋压缩机在获得相同的制冷量前提下，压缩机体积可以变小，较好地满足了车载空调压缩机的小型轻量化要求。基于提高电动汽车空调涡旋压缩机等熵效率和容积效率的目标，建立了变基圆渐开线涡旋盘的数学和几何模型，以变基圆涡旋型线的齿厚控制参数多变指数

和修正增量

为变量，进行了涡旋压缩机的内部流场数值模拟计算和流体动力学分析。数值计算结果表明：当变基圆型线参数为

=1、

=-0.03 mm时，压缩机工作腔内部流体的比耗散率为180.28 s

-1

，相较于定基圆压缩机内部流场的比耗散率283.39 s

-1

降低了103.11 s

-1

，压缩机运行中因湍动能耗散造成的能量损失变小，可以提高涡旋压缩机的等熵效率。进行了电动汽车空调涡旋压缩机的性能试验，相比于定基圆涡旋压缩机，

=1、

=-0.03 mm参数的变基圆涡旋压缩机输入电功率降低了1.392%，性能系数COP

增加了4.204%。

Abstract

Because the piston volume of a scroll compressor with variable base circle involute can be reduced under the premise of obtaining the same cooling capacity

it can satisfy the compact and lightweight requirements of vehicle air conditioning compressors. To improve the isentropic and volumetric efficiencies of the scroll compressor

a mathematical and geometric model of the scroll disc with a variable base circle involute was established. With the variable index

and the modified increment

as variables

the internal flow field of the scroll compressor is numerically simulated

and fluid dynamic analysis is conducted. The numerical results show that when the parameters of the variable base circle line are

=1 and

=-0.03 mm

the specific dissipation rate of the fluid in the compressor working chamber is 180.28 s

-1

which is 103.11 s

-1

lower than the 283.39 s

-1

of the flow field in the fixed base circle compressor. The isentropic efficiency of the scroll compressor can be improved by reducing energy loss due to the turbulent kinetic energy dissipation. The performance of the scroll compressor for electric vehicle air-conditioning was tested. Compared with the fixed base circle scroll compressor

the input power of the variable base circle scroll compressor with

=1 and

=-0.03 mm decreases by 1.392%

and the performance coefficient COP

increases by 4.204%.

关键词

Keywords

references

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