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Enhanced heat transfer by an original immersed spray cooling system integrated with an ejector

Author

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  • Wang, Ji-Xiang
  • Li, Yun-Ze
  • Li, Jia-Xin
  • Li, Chao
  • Xiong, Kai
  • Ning, Xian-Wen

Abstract

Spray cooling is believed to be a promising candidate for the cooling of the next-generation high heat-flux electronics. Different from the traditional spray cooling (SC), a modified version of SC – immersed spray cooling (ISC) – is firstly proposed in this paper. Experimental set-up upon which thermal tests of SC, ISC and pool boiling can be conducted was established. In order to realize the multifunction of the experimental system, an ejector, which plays an important role to control the liquid level in the cooling chamber, is integrated in the experimental system. Based on the novel theory of suction according to the need, modelling, design, and fabrication of the ejector was conducted, which proves to be a success in the practical operation. We experimentally demonstrated that the ISC performs the best in terms of cooling performance in all the operating conditions. Comparative study between thermal performances between SC and ISC is the focus in this paper. A maximum 65.6% enhancement in heat flux was observed for the ISC when the surface temperature was 205.6 °C. The enhanced heat transfer of the ISC can be attained due to the vapor layer elimination and chaotic effect around the target surface.

Suggested Citation

  • Wang, Ji-Xiang & Li, Yun-Ze & Li, Jia-Xin & Li, Chao & Xiong, Kai & Ning, Xian-Wen, 2018. "Enhanced heat transfer by an original immersed spray cooling system integrated with an ejector," Energy, Elsevier, vol. 158(C), pages 512-523.
    • Handle: RePEc:eee:energy:v:158:y:2018:i:c:p:512-523
    DOI: 10.1016/j.energy.2018.06.019
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    References listed on IDEAS

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    1. Sohel Murshed, S.M. & Nieto de Castro, C.A., 2017. "A critical review of traditional and emerging techniques and fluids for electronics cooling," Renewable and Sustainable Energy Reviews, Elsevier, vol. 78(C), pages 821-833.
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    3. Schiro, Fabio & Benato, Alberto & Stoppato, Anna & Destro, Nicola, 2017. "Improving photovoltaics efficiency by water cooling: Modelling and experimental approach," Energy, Elsevier, vol. 137(C), pages 798-810.
    4. Chen, Hua & Cheng, Wen-long & Zhang, Wei-wei & Peng, Yu-hang & Jiang, Li-jia, 2017. "Energy saving evaluation of a novel energy system based on spray cooling for supercomputer center," Energy, Elsevier, vol. 141(C), pages 304-315.
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    Cited by:

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    2. Xu, Haojie & Wang, Junfeng & Li, Bin & Yu, Kai & Wang, Hai & Tian, Jiameng & Li, Bufa, 2022. "Electrospray characteristics and cooling performance of dielectric fluid HFE-7100," Energy, Elsevier, vol. 259(C).
    3. Bian, Jiang & Cao, Xuewen & Yang, Wen & Song, Xiaodan & Xiang, Chengcheng & Gao, Song, 2019. "Condensation characteristics of natural gas in the supersonic liquefaction process," Energy, Elsevier, vol. 168(C), pages 99-110.
    4. Tang, Yongzhi & Yuan, Jiali & Liu, Zhongliang & Feng, Qing & Gong, Xiaolong & Lu, Lin & Chua, Kian Jon, 2022. "Study on evolution laws of two-phase choking flow and entrainment performance of steam ejector oriented towards MED-TVC desalination system," Energy, Elsevier, vol. 242(C).
    5. Besagni, Giorgio, 2019. "Ejectors on the cutting edge: The past, the present and the perspective," Energy, Elsevier, vol. 170(C), pages 998-1003.
    6. Tang, Yongzhi & Liu, Zhongliang & Li, Yanxia & Huang, Zhifeng & Chua, Kian Jon, 2021. "Study on fundamental link between mixing efficiency and entrainment performance of a steam ejector," Energy, Elsevier, vol. 215(PB).

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