NUCLEAR TECHNIQUES, Volume. 46, Issue 5, 050606(2023)
Flow patterns visualization and triggering mechanisms of critical heat flux in narrow rectangular channels with different gap size
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Fig. 1. Schematic diagram of the setup of visualization part (a) Schematic diagram, (b) Snapshot of experimental field
Fig. 3. CHF trigger mechanism in the ε =5 mm (a) Flow pattern evolution, (b) Temperature variation
Fig. 4. CHF trigger mechanism in the ε =3 mm (a) Flow pattern evolution，(b) Temperature variation
Fig. 5. CHF trigger mechanism in the ε =2 mm (a) Flow pattern evolution, (b) Temperature variation
Fig. 6. CHF trigger mechanism in the ε =1 mm (a) Flow pattern evolution, (b) Temperature variation
Fig. 7. CHF changes with pressure when gap size is 3 mm and 5 mm, respectively
Fig. 9. Flow pattern when CHF occurs in a narrow rectangular channel
Table 1. Range of experimental parameters
View tableView in ArticleTable 1. Range of experimental parameters
名称Parameter 范围Range 实验压力System pressure / MPa 1⁓4 窄缝宽度Gap size / mm 1⁓5 质量流速Mass flux / kg·(m2·s)-1 350⁓2 000 入口过冷度Inlet fluid subcooling 60~120 K
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Meiyue YAN, Liangming PAN, Zaiyong MA, Xiang LI, Qingche HE. Flow patterns visualization and triggering mechanisms of critical heat flux in narrow rectangular channels with different gap size[J]. NUCLEAR TECHNIQUES, 2023, 46(5): 050606
Paper Information
Category: Research Articles
Received: Jun. 28, 2022
Accepted: --
Published Online: Jun. 30, 2023
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