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 RefrigerationVol. 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)
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.
Optimization of Involute Profile Parameters with Variable Base Circle for Scroll Compressors
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
k
and the modified increment
δ
0
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
k
=1 and
δ
0
=-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
k
=1 and
δ
0
=-0.03 mm decreases by 1.392%
and the performance coefficient COP
el
increases by 4.204%.
关键词
Keywords
references
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