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Numerical simulation on reed valve's flow coefficient and effective flow area coefficient.

Number: pap. L69

Author(s) : GUO J., WANG S., WANG F., et al.

Summary

The flow coefficient and effective flow area coefficient are usually obtained by experiment, however it is rather hard to measure them in a closed system. A method based on CFD to calculate the flow coefficient and effective flow area coefficient is presented in this paper. The creation of a mathematical model considering both the thermodynamic process and air valve movement of the compressor involves two important coefficients: flow coefficient and effective action area coefficient. so far, no mathematical method has yet been available for calculating them accurately. They are determined largely using empirical formulas. in the study presented by the paper, a flow field model of the reed valve was created on the basis of CFD after an analysis of the flow behavior around the valve plate, the velocity field, pressure field, and path lines around the valve plate in the transient flow regime were simulated in the FLUENT software, and the calculation data of the valve plate's unit flow rates and surface stress under different openings and differential pressures were employed to analyze the factors affecting the reed valve's flow coefficient and effective action area coefficient, thus providing reference or guidance for reed valve design, optimization, and efficient improvement.

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Pages: 7

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Details

  • Original title: Numerical simulation on reed valve's flow coefficient and effective flow area coefficient.
  • Record ID : 30022082
  • Languages: English
  • Source: 8th international conference on compressors and refrigeration, 2017.
  • Publication date: 2017/07/20

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