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Theoretical and Experimental Research on Thermal Dynamic Characteristics of Single-Screw Compressor with a New Composite SLIDE Valve

Author

Listed:
  • Shanwei Liu

    (Basic Physics Department, China Fire and Rescue Institute, Beijing 102200, China)

  • Ruiping Zhi

    (MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing University of Technology, Beijing 100124, China
    Beijing Key Laboratory of Heat Transfer and Energy Conversion, Beijing University of Technology, Beijing 100124, China)

  • Yuting Wu

    (MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing University of Technology, Beijing 100124, China
    Beijing Key Laboratory of Heat Transfer and Energy Conversion, Beijing University of Technology, Beijing 100124, China)

  • Yuanwei Lu

    (MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing University of Technology, Beijing 100124, China
    Beijing Key Laboratory of Heat Transfer and Energy Conversion, Beijing University of Technology, Beijing 100124, China)

  • Biao Lei

    (MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing University of Technology, Beijing 100124, China
    Beijing Key Laboratory of Heat Transfer and Energy Conversion, Beijing University of Technology, Beijing 100124, China)

  • Chongfang Ma

    (MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing University of Technology, Beijing 100124, China
    Beijing Key Laboratory of Heat Transfer and Energy Conversion, Beijing University of Technology, Beijing 100124, China)

Abstract

Based on the single-screw compressor (SSC) structure, a new type of composite slide valve (CSV) has been proposed and designed, featuring internal volume ratios of 2.8, 3.9, and 5.6 and operating under a partial load of 35%. The theoretical model describing the dynamic features and thermodynamic performance of the SSC with CSV has also been built. The pressure ratio of the experimental system can be adjusted from 3.3 to 7.8, and the experimental results demonstrate the CSV’s effective performance. The deviations between the calculated and measured results for volume ratio and input power are 3.33–9.08% and 0.32–8.03%, and the deviations for heating capacity and adiabatic efficiency range from 0.92–8.73% to 2.09–9.67%, respectively. The introduction of the CSV offers a novel approach to enhancing SSC efficiency. Both the theoretical and experimental findings lay a foundation for future optimization and design improvements in variable load and internal volumetric ratio single-screw compressors.

Suggested Citation

  • Shanwei Liu & Ruiping Zhi & Yuting Wu & Yuanwei Lu & Biao Lei & Chongfang Ma, 2024. "Theoretical and Experimental Research on Thermal Dynamic Characteristics of Single-Screw Compressor with a New Composite SLIDE Valve," Energies, MDPI, vol. 17(10), pages 1-22, May.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:10:p:2385-:d:1395280
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    References listed on IDEAS

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    1. Reda, Francesco & Paiho, Satu & Pasonen, Riku & Helm, Martin & Menhart, Florian & Schex, Richard & Laitinen, Ari, 2020. "Comparison of solar assisted heat pump solutions for office building applications in Northern climate," Renewable Energy, Elsevier, vol. 147(P1), pages 1392-1417.
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