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Experimental and theoretical investigation of surface temperature non-uniformity of spray cooling

Author

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  • Cheng, Wen-Long
  • Han, Feng-Yun
  • Liu, Qi-Nie
  • Zhao, Rui
  • Fan, Han-lin

Abstract

In this study, a test system for spray cooling, in which the heating surface temperatures were simultaneously measured by thermocouples and an infrared imager, was set up. A mathematical model of spray cooling heat transfer characteristics was presented based on the fundamentals of dynamics and heat transfer. The temperature distribution on the heating surface was investigated by the experimental and theoretical methods, the surface temperature non-uniformity and its influencing factors were analyzed. The predictions by the model coincided with the experimental results well, and a comparison was demonstrated with a deviation below 10%. It can be concluded that the surface temperature non-uniformity is influenced by the spray characteristics, nozzle-to-surface distance, inlet pressure, heat flux, spray angle and the system pressure. In the case of the same heat flux, the surface temperature non-uniformity can be reduced by the small spray angle, low system pressure, low nozzle-to-surface distance, and the high inlet pressure.

Suggested Citation

  • Cheng, Wen-Long & Han, Feng-Yun & Liu, Qi-Nie & Zhao, Rui & Fan, Han-lin, 2011. "Experimental and theoretical investigation of surface temperature non-uniformity of spray cooling," Energy, Elsevier, vol. 36(1), pages 249-257.
    • Handle: RePEc:eee:energy:v:36:y:2011:i:1:p:249-257
    DOI: 10.1016/j.energy.2010.10.044
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    Citations

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    Cited by:

    1. Tianshi Zhang & Ziming Mo & Xiaoyu Xu & Xiaoyan Liu & Haopeng Chen & Zhiwu Han & Yuying Yan & Yingai Jin, 2022. "Advanced Study of Spray Cooling: From Theories to Applications," Energies, MDPI, vol. 15(23), pages 1-40, December.
    2. Cheng, Wen-Long & Zhang, Wei-Wei & Chen, Hua & Hu, Lei, 2016. "Spray cooling and flash evaporation cooling: The current development and application," Renewable and Sustainable Energy Reviews, Elsevier, vol. 55(C), pages 614-628.
    3. Cheng, Wen-Long & Han, Feng-Yun & Liu, Qi-Nie & Fan, Han-Lin, 2011. "Spray characteristics and spray cooling heat transfer in the non-boiling regime," Energy, Elsevier, vol. 36(5), pages 3399-3405.
    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.
    5. Jing Yin & Shangming Wang & Xuehao Sang & Zhifu Zhou & Bin Chen & Panidis Thrassos & Alexandros Romeos & Athanasios Giannadakis, 2022. "Spray Cooling as a High-Efficient Thermal Management Solution: A Review," Energies, MDPI, vol. 15(22), pages 1-29, November.

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