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Numerical simulation of the flow inside a scroll compressor equipped with Intermediate Discharge Valves.

Number: pap.1177

Author(s) : PICAVET A., ANGEL B.

Summary

This paper presents the results of CFD simulations of the compression process of a scroll compressor. The compressor geometry accounts for the final scroll gas pocket, two intermediate discharge valves (IDVs), the central discharge zone and the upper shell or high pressure (HP) zone. The numerical model uses a real gas equation of state to determine gas properties during the compression process and accounts for the motion of the orbiting scroll and the IDVs using a mesh smoothing and remeshing algorithm. The IDVs are represented as a spring mass system with their movement controlled via the pressure difference around the valve. Appropriate pressure based boundary conditions are used at entry to the third gas pocket and at the exit of the upper shell. An initial analysis of the results indicates that it is possible to achieve time accurate results of the pressure field throughout the flow domain and also determine the impact of the IDVs on scroll performance. The results will also enable a more thorough analysis of the fluid flow and compression process inside the scroll in order to improve its performance.

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Pages: 8 p.

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Details

  • Original title: Numerical simulation of the flow inside a scroll compressor equipped with Intermediate Discharge Valves.
  • Record ID : 30019454
  • Languages: English
  • Source: 2016 Purdue Conferences. 23rd International Compressor Engineering Conference at Purdue.
  • Publication date: 2016/07/11

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