Experimental Study on Prototype Melt under Severe Accident

Li Yang; Gong Houjun; Guo Kerong; Hu Yuwen; Yang Shengxing; Zan Yuanfeng; Yang Zumao; Huang Yanping

doi:10.13832/j.jnpe.2023.04.0240

Volume 44 Issue 4

Aug. 2023

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Article Navigation > Nuclear Power Engineering > 2023 > 44(4): 240-246

Li Yang, Gong Houjun, Guo Kerong, Hu Yuwen, Yang Shengxing, Zan Yuanfeng, Yang Zumao, Huang Yanping. Experimental Study on Prototype Melt under Severe Accident[J]. Nuclear Power Engineering, 2023, 44(4): 240-246. doi: 10.13832/j.jnpe.2023.04.0240

Citation:

Li Yang, Gong Houjun, Guo Kerong, Hu Yuwen, Yang Shengxing, Zan Yuanfeng, Yang Zumao, Huang Yanping. Experimental Study on Prototype Melt under Severe Accident[J]. Nuclear Power Engineering, 2023, 44(4): 240-246. doi: 10.13832/j.jnpe.2023.04.0240

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Experimental Study on Prototype Melt under Severe Accident

doi: 10.13832/j.jnpe.2023.04.0240

CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2022-11-28
Rev Recd Date: 2023-02-20
Publish Date: 2023-08-15

Abstract

Abstract

In order to study the stratification morphology of the molten pool of the lower head of the pressure vessel under severe accident conditions, it is necessary to melt the prototype melt into liquid for experiments. In this study, CESEF experimental device is used, and the prototype melt is melted with the electromagnetic cold crucible technology. The maximum charge capacity is 5000 g, and the maximum temperature is 3000°C. The supporting high-frequency power supply is of 400 kW and a frequency of 100 kHz. An experimental study is carried out on the composition of Hualong One (HPR 1000) core melt, and it is found that the molten pool is divided into two layers: the metal layer and the oxide layer. By sampling different positions of the metal layer and oxide layer, it is found that the metal layer is mainly composed of stainless steel with some U and Zr, and the oxide layer is mainly composed of U, Zr and O in suboxide state, with few other contents.
- CESEF experimental device,
- Prototype material,
- Molten pool

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References(8)

References

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