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Experimental Investigation into the Effect of Oil Injection on the Performance of a Variable Speed Twin-Screw Compressor

Author

Listed:
  • Zhilong He

    (School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Tao Wang

    (School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
    School of Energy and Power Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China)

  • Xiaolin Wang

    (School of Engineering & ICT, University of Tasmania, Private Bag 65, Hobart TAS 7001, Australia)

  • Xueyuan Peng

    (School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Ziwen Xing

    (School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

In this paper, the effect of oil injection flow rate on the performance of a variable speed twin-screw compressor was investigated experimentally. Comprehensive experiments were conducted at different compressor rotational speeds and oil injection flow rates. As the rotational speed increased from 1000 to 3000 rpm, the compressor volumetric and adiabatic efficiencies increased while the specific power consumption decreased. However, the oil injection flow rate showed different influences on the compressor performance. As the oil injection flow rate increased from 27 to 50 L/min, the adiabatic and volumetric efficiencies increased while the compressor discharge temperature and specific power decreased. Further increases in the oil injection flow rate had little effect on compressor performance at flow rates above 50 L/min. The analysis indicated that the oil injection flow rate was limited by the discharge temperature at low compressor rotational speeds and was a trade-off among two efficiencies and specific power consumption at high rotational speeds.

Suggested Citation

  • Zhilong He & Tao Wang & Xiaolin Wang & Xueyuan Peng & Ziwen Xing, 2018. "Experimental Investigation into the Effect of Oil Injection on the Performance of a Variable Speed Twin-Screw Compressor," Energies, MDPI, vol. 11(6), pages 1-14, May.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:6:p:1342-:d:148928
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    References listed on IDEAS

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    1. Sun-Seok Byeon & Jae-Young Lee & Youn-Jea Kim, 2017. "Performance Characteristics of a 4 × 6 Oil-Free Twin-Screw Compressor," Energies, MDPI, vol. 10(7), pages 1-16, July.
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    3. Guoqiang Li & Yuting Wu & Yeqiang Zhang & Ruiping Zhi & Jingfu Wang & Chongfang Ma, 2016. "Performance Study on a Single-Screw Expander for a Small-Scale Pressure Recovery System," Energies, MDPI, vol. 10(1), pages 1-14, December.
    4. Tian, Yafen & Xing, Ziwen & He, Zhilong & Wu, Huagen, 2017. "Modeling and performance analysis of twin-screw steam expander under fluctuating operating conditions in steam pipeline pressure energy recovery applications," Energy, Elsevier, vol. 141(C), pages 692-701.
    5. Liu, Zhijian & Xu, Wei & Zhai, Xue & Qian, Cheng & Chen, Xi, 2017. "Feasibility and performance study of the hybrid ground-source heat pump system for one office building in Chinese heating dominated areas," Renewable Energy, Elsevier, vol. 101(C), pages 1131-1140.
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    Cited by:

    1. Qing Guo & Kai Luo & Daijin Li & Chuang Huang & Kan Qin, 2021. "Effect of Operating Conditions on the Performance of Gas–Liquid Mixture Roots Pumps," Energies, MDPI, vol. 14(17), pages 1-23, August.
    2. Tao Wang & Qiang Qi & Wei Zhang & Dengyi Zhan, 2023. "Research on Optimization of Profile Parameters in Screw Compressor Based on BP Neural Network and Genetic Algorithm," Energies, MDPI, vol. 16(9), pages 1-17, April.

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