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Parametric Study of a Phase Separator used in A/C Automotive System using CFD Tool

Author Affiliations

  • 1 School of Mechanical and Building Sciences, VIT University, Vellore-632014, Tamil Nadu, INDIA

Res. J. Engineering Sci., Volume 1, Issue (3), Pages 15-21, September,26 (2012)


The air conditioning system used in automobiles uses oil which lubricates the moving part of the compressor. Excess presence of the lubricant oil in the compressor will cause a hindrance to flow inside the condenser and evaporator which will affect the heat transfer efficiency of the system. The oil is separated at the downstream of the compressor using centrifugal/ impinging on the refrigerant gas flow. The oil exists in the form of droplets in a secondary phase. The main requirement for a good design of the phase separator is to have maximum oil separation with minimum pressure drop of the refrigerant gas. The numerical simulation is carried out using Multiphase Mixture model.


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