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Development and performance of a heat driven R141b ejector air conditioner: Application in hot climate country

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  • Thongtip, Tongchana
  • Aphornratana, Satha

Abstract

This paper proposes the design, construction, and test of a prototype R141b ejector refrigeration system. It was used as an air conditioner for a hot climate country (Thailand). The prototype machine was designed to work as a water chiller to provide thermal comfort condition for the tested room with the cooling capacity up to 4500 W. It was driven by hot water with temperatures of 90–98 °C. The condenser was cooled by water, which was provided by a cooling tower, with temperatures of 28–32 °C. CFD simulation was also employed to design the ejector. The tested results indicated that the prototype R141b ejector refrigerator working as an air conditioner was satisfactory in operating conditions consistent with a hot climate (Thailand's environment). The temperature of the air conditioned space was around 23 to 25 °C with the cooling load of 4500 W. The coefficient of performance (COP) was between 0.42 and 0.47.

Suggested Citation

  • Thongtip, Tongchana & Aphornratana, Satha, 2018. "Development and performance of a heat driven R141b ejector air conditioner: Application in hot climate country," Energy, Elsevier, vol. 160(C), pages 556-572.
    • Handle: RePEc:eee:energy:v:160:y:2018:i:c:p:556-572
    DOI: 10.1016/j.energy.2018.07.043
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    Citations

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    Cited by:

    1. Jeon, Yongseok & Kim, Sunjae & Lee, Sang Hun & Chung, Hyun Joon & Kim, Yongchan, 2020. "Seasonal energy performance characteristics of novel ejector-expansion air conditioners with low-GWP refrigerants," Applied Energy, Elsevier, vol. 278(C).
    2. Zhang, Jingzhi & Zhai, Xiaoyu & Li, Shizhen, 2020. "Numerical studies on the performance of ammonia ejectors used in ocean thermal energy conversion system," Renewable Energy, Elsevier, vol. 161(C), pages 766-776.
    3. Besagni, Giorgio, 2019. "Ejectors on the cutting edge: The past, the present and the perspective," Energy, Elsevier, vol. 170(C), pages 998-1003.
    4. Kittiwoot Sutthivirode & Tongchana Thongtip, 2022. "Experimental Determination of an Optimal Performance Map of a Steam Ejector Refrigeration System," Energies, MDPI, vol. 15(12), pages 1-19, June.
    5. Tongchana Thongtip & Natthawut Ruangtrakoon, 2021. "Real Air-Conditioning Performance of Ejector Refrigerator Based Air-Conditioner Powered by Low Temperature Heat Source," Energies, MDPI, vol. 14(3), pages 1-20, January.

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