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A U-Shaped Oscillatory Liquid Piston Compression Air Conditioner Driven by Rotary Displacer Stirling Engine

Author

Listed:
  • Chang-Sheng Lin

    (Department of Vehicle Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan)

  • Jui-Kai Liu

    (Department of Vehicle Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan)

  • Hung-Tse Chiang

    (Department of Vehicle Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan)

Abstract

A rotary displacer, Stirling engine-driven, oscillatory liquid piston-compression air conditioning unit is analyzed, designed, and conceptually proved by experiments on its cooling capability and performance efficiency. The engine itself aims to work compatibly with a conventional solar water heater as its power source, with a rotary displacer to manipulate its operation frequency. A U-shaped, oscillatory liquid piston, with the cylinder chamber vented to low pressure, aims to both reduce the sealing friction and serve as the refrigerant. During the experiments, the engine is fed with an electrically heated hot bath whose temperature profile is determined according to a field test of solar thermal collectors in summer conditions. Experimental results show that the coefficient of performance (COP) of the oscillatory liquid piston air conditioning unit would be in the range of 1.3 to 1.5.

Suggested Citation

  • Chang-Sheng Lin & Jui-Kai Liu & Hung-Tse Chiang, 2020. "A U-Shaped Oscillatory Liquid Piston Compression Air Conditioner Driven by Rotary Displacer Stirling Engine," Energies, MDPI, vol. 13(16), pages 1-15, August.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:16:p:4091-:d:395879
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    References listed on IDEAS

    as
    1. Cheng, Chin-Hsiang & Yu, Ying-Ju, 2010. "Numerical model for predicting thermodynamic cycle and thermal efficiency of a beta-type Stirling engine with rhombic-drive mechanism," Renewable Energy, Elsevier, vol. 35(11), pages 2590-2601.
    2. Jang-Hoon Shin & Joon-Young Park & Min-Suk Jo & Jae-Weon Jeong, 2018. "Impact of Heat Pump-Driven Liquid Desiccant Dehumidification on the Energy Performance of an Evaporative Cooling-Assisted Air Conditioning System," Energies, MDPI, vol. 11(2), pages 1-21, February.
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