CHF Mechanism Model in Narrow Rectangular Channel Based on Energy Balance on Heating Wall

Yan Meiyue; Deng Jian; Pan Liangming; Ma Zaiyong; Li Xiang; Wan Lingfeng; He Qingche

doi:10.13832/j.jnpe.2023.02.0043

Volume 44 Issue 2

Apr. 2023

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Yan Meiyue, Deng Jian, Pan Liangming, Ma Zaiyong, Li Xiang, Wan Lingfeng, He Qingche. CHF Mechanism Model in Narrow Rectangular Channel Based on Energy Balance on Heating Wall[J]. Nuclear Power Engineering, 2023, 44(2): 43-47. doi: 10.13832/j.jnpe.2023.02.0043

Citation:

Yan Meiyue, Deng Jian, Pan Liangming, Ma Zaiyong, Li Xiang, Wan Lingfeng, He Qingche. CHF Mechanism Model in Narrow Rectangular Channel Based on Energy Balance on Heating Wall[J]. Nuclear Power Engineering, 2023, 44(2): 43-47. doi: 10.13832/j.jnpe.2023.02.0043

Citation:

Yan Meiyue, Deng Jian, Pan Liangming, Ma Zaiyong, Li Xiang, Wan Lingfeng, He Qingche. CHF Mechanism Model in Narrow Rectangular Channel Based on Energy Balance on Heating Wall[J]. Nuclear Power Engineering, 2023, 44(2): 43-47. doi: 10.13832/j.jnpe.2023.02.0043

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CHF Mechanism Model in Narrow Rectangular Channel Based on Energy Balance on Heating Wall

doi: 10.13832/j.jnpe.2023.02.0043

Yan Meiyue^{1, 2
,},
Deng Jian³,
Pan Liangming^{1, 2
,
,},
Ma Zaiyong^{1, 2},
Li Xiang^{1, 2},
Wan Lingfeng^{1, 2},
He Qingche^{1, 2}

1.
Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing, 400044, China
2.
Department of Nuclear Engineering and Technology, Chongqing University, Chongqing, 400044, China
3.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2022-06-10
Rev Recd Date: 2022-07-25
Publish Date: 2023-04-15

Abstract

Abstract

Narrow rectangular channel is widely used in various fields because of its compact structure and large heat transfer area. The safety and economy of reactor can be improved by improving the prediction method of critical heat flux (CHF) in the narrow rectangular channel and establishing a CHF mechanism model. In this paper, a visual experimental study is conducted on the CHF flowing vertically upward in a narrow rectangular channel. On this basis, a CHF mechanism model based on the heating wall energy balance is developed. A set of constitutive relations are provided to close the developed model, and the experimental data are used to compare and evaluate the new model. The narrow rectangular channel and it has good accuracies of less than ±20% as relative to the experimental values.
- Narrow rectangular channel,
- Critical heat flux (CHF),
- Energy balance,
- Mechanism model

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References(15)

References

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