中国物理B ›› 2022, Vol. 31 ›› Issue (6): 64401-064401.doi: 10.1088/1674-1056/ac523c

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Accurate prediction of the critical heat flux for pool boiling on the heater substrate

Fengxun Hai(海丰勋)1, Wei Zhu(祝薇)2,3,†, Xiaoyi Yang(杨晓奕)1, and Yuan Deng(邓元)2,4,‡   

  1. 1 School of Energy and Power Engineering, Beihang University, Beijing 100083, China;
    2 Research Institute for Frontier Science, Beihang University, Beijing 100083, China;
    3 Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China;
    4 Hangzhou Innovation Institute, Beihang University, Hangzhou 310052, China
  • 收稿日期:2021-11-25 修回日期:2022-01-25 接受日期:2022-02-07 出版日期:2022-05-17 发布日期:2022-06-07
  • 通讯作者: Wei Zhu, Yuan Deng E-mail:zhu_wei@buaa.edu.cn;dengyuan@buaa.edu.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2018YFA0702100), the National Natural Science Foundation of China (Grant No. U21A2079), the Zhejiang Provincial Key Research and Development Program of China (Grant Nos. 2021C05002 and 2021C01026), and the Fundamental Research Funds for the Central Universities.

Accurate prediction of the critical heat flux for pool boiling on the heater substrate

Fengxun Hai(海丰勋)1, Wei Zhu(祝薇)2,3,†, Xiaoyi Yang(杨晓奕)1, and Yuan Deng(邓元)2,4,‡   

  1. 1 School of Energy and Power Engineering, Beihang University, Beijing 100083, China;
    2 Research Institute for Frontier Science, Beihang University, Beijing 100083, China;
    3 Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China;
    4 Hangzhou Innovation Institute, Beihang University, Hangzhou 310052, China
  • Received:2021-11-25 Revised:2022-01-25 Accepted:2022-02-07 Online:2022-05-17 Published:2022-06-07
  • Contact: Wei Zhu, Yuan Deng E-mail:zhu_wei@buaa.edu.cn;dengyuan@buaa.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2018YFA0702100), the National Natural Science Foundation of China (Grant No. U21A2079), the Zhejiang Provincial Key Research and Development Program of China (Grant Nos. 2021C05002 and 2021C01026), and the Fundamental Research Funds for the Central Universities.

摘要: While the influence of liquid qualities, surface morphology, and operating circumstances on critical heat flux (CHF) in pool boiling has been extensively studied, the effect of the heater substrate has not. Based on the force balance analysis, a theoretical model has been developed to accurately predict the CHF in pool boiling on a heater substrate. An analytical expression for the CHF of a heater substrate is obtained in terms of the surface thermophysical property. It is indicated that the ratio of thermal conductivity (k) to the product of density (ρ) and specific heat (cp) is an essential substrate property that influences the CHF. By modifying the well-known force-balance-based CHF model (Kandlikar model), the thermal characteristics of the substrate are taken into consideration. The bias of predicted CHF values are within 5% compared with the experimental results.

关键词: boiling heat transfer, kandlikar model, critical heat flux, heater substrate

Abstract: While the influence of liquid qualities, surface morphology, and operating circumstances on critical heat flux (CHF) in pool boiling has been extensively studied, the effect of the heater substrate has not. Based on the force balance analysis, a theoretical model has been developed to accurately predict the CHF in pool boiling on a heater substrate. An analytical expression for the CHF of a heater substrate is obtained in terms of the surface thermophysical property. It is indicated that the ratio of thermal conductivity (k) to the product of density (ρ) and specific heat (cp) is an essential substrate property that influences the CHF. By modifying the well-known force-balance-based CHF model (Kandlikar model), the thermal characteristics of the substrate are taken into consideration. The bias of predicted CHF values are within 5% compared with the experimental results.

Key words: boiling heat transfer, kandlikar model, critical heat flux, heater substrate

中图分类号:  (Analytical and numerical techniques)

  • 44.05.+e
44.35.+c (Heat flow in multiphase systems) 44.25.+f (Natural convection)