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NUCLEAR TECHNIQUES, Volume. 45, Issue 10, 100604(2022)

A new CHF mechanism model for a narrow rectangular channel based on bubble dynamics characteristics

Meiyue YAN1,2, Liangming PAN1,2、*, Zaiyong MA1,2, Xiang LI1,2, and Lingfeng WAN1,2
Author Affiliations
  • 1Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400044, China
  • 2Department of Nuclear Engineering and Technology, Chongqing University, Chongqing 400044, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (33)
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    Figures & Tables(8)
    Schematic diagram of experimental loop (a) Experimental loop, (b) Experimental body

    Fig. 1. Schematic diagram of experimental loop (a) Experimental loop, (b) Experimental body

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    Comparison of Zhao's (a) and Ding's (b) model value and experimental value

    Fig. 2. Comparison of Zhao's (a) and Ding's (b) model value and experimental value

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    Comparison between the predicted value of Sudo's correlation and experimental value

    Fig. 3. Comparison between the predicted value of Sudo's correlation and experimental value

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    Schematic diagram of bubble cycle

    Fig. 4. Schematic diagram of bubble cycle

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    The dominant time of transient heat conduct

    Fig. 5. The dominant time of transient heat conduct

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    Comparison of proposed model value and experimental value

    Fig. 6. Comparison of proposed model value and experimental value

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    Trend of CHF with mass flux

    Fig. 7. Trend of CHF with mass flux

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    • Table 1. Range of experimental parameters

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      Table 1. Range of experimental parameters

      名称 Parameter范围 Range
      实验压力System pressure p/ MPa1~4
      窄缝宽度Gap size ε/ mm3
      加热长度 Heated length L/ mm600
      质量流速Mass flux G/ kg·(m2·s)-1350~2 000

      入口过冷度

      Inlet subcooling ΔTin,sub / K

      		60~120
      加热方式 Heated method单面加热 Single heated
      加热材料 Material

      不锈钢加热

      Stainless steel

      流向 Direction向上流动 Upflow
      工质 Medium

      去离子水

      Deionized water

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    Meiyue YAN, Liangming PAN, Zaiyong MA, Xiang LI, Lingfeng WAN. A new CHF mechanism model for a narrow rectangular channel based on bubble dynamics characteristics[J]. NUCLEAR TECHNIQUES, 2022, 45(10): 100604

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    Paper Information

    Category: Research Articles

    Received: Mar. 10, 2022

    Accepted: --

    Published Online: Nov. 4, 2022

    The Author Email: PAN Liangming (cneng@cqu.edu.cn)

    DOI:10.11889/j.0253-3219.2022.hjs.45.100604

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology