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Determination of Effective Flow and Force Areas for Reed Type Compressor Valve Systems: Part 1—Model Derivation Using CFD Analysis Results

Author

Listed:
  • Jeong Deok Park

    (Department of Automotive Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea)

  • Seong Jin Lee

    (Department of Automotive Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea)

  • Jun-young Ahn

    (Department of Automotive Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea)

  • Jinkook Kim

    (Recipro Compressor Project, H&A Fundamental Technology R&D Lab., LG Electronics Inc., Seoul 08592, Republic of Korea)

  • Jong Bong Kim

    (Department of Automotive Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
    Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea)

Abstract

The dynamic behavior of reed valves during suction and discharge is very important in predicting compressor performance and valve fatigue fracture. For an accurate dynamic analysis of reed valves, mass flow rate and effective force area should be accurately modeled. In this study, mass flow rate and effective force area models were developed based on CFD analysis results using the well-known commercial software ANSYS Fluent. CFD analyses were carried out for various values of port radius, valve radius, valve lift, and pressure difference. The mass flow rate and pressure force on valve were obtained from the analysis. Then, effective flow and force area models were proposed and the model coefficients were determined using the CFD results. The average prediction error of the effective flow area and the effective force area were 1.90% and 2.9%, respectively. It was shown that the effective flow area is dependent only on the port radii and valve lift; it is not dependent on the valve radii. The proposed effective force area model can accurately describe the decrease and increase in pressure force with valve lift.

Suggested Citation

  • Jeong Deok Park & Seong Jin Lee & Jun-young Ahn & Jinkook Kim & Jong Bong Kim, 2023. "Determination of Effective Flow and Force Areas for Reed Type Compressor Valve Systems: Part 1—Model Derivation Using CFD Analysis Results," Energies, MDPI, vol. 16(7), pages 1-14, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:7:p:2951-:d:1105608
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