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3D conjugate heat transfer modelling of e-compressor.

Number: 1239

Author(s) : BALLANI A., TAO M., SRINIVASAN C., GAO H., MAITI D., DHAR S.

Summary

E-Compressor has been widely used in the A/C systems of electric and hybrid vehicles due to advantages such as easy controllability and good efficiencies. In the present work, a 3-D thermal-fluid coupled methodology is devised using the commercial CFD software SimericsMP+® to investigate performance of an electric scroll compressor for different operating conditions. Gaseous refrigerant enters the system at low pressure and temperature condition, flows through the electric scroll compressor system, and exits at high pressure and temperature. Simulations were performed to study the effect of different tip leakage sizes ranging from 0 to 100 𝜇𝑚 on the E-Compressor output. The volumetric efficiency of E-Compressor significantly decreases with large tip leakage size. The methodology was extended to couple the conjugate heat transfer physics to the Fluid Structure Interaction (FSI) of a reed valve downstream of the scroll compressor. It was noticed that the volumetric efficiency of scroll compressor does show major differences. The devised methodology is observed to be numerically robust and accurate, while achieving good computational efficiency.

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Pages: 11 p.

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  • Original title: 3D conjugate heat transfer modelling of e-compressor.
  • Record ID : 30030292
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 26th International Compressor Engineering Conference at Purdue.
  • Publication date: 2022/07/15

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