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논문 기본 정보

자료유형
학술저널
저자정보
Liu Hanchen (School of Mechanical Engineering Shanghai Jiao Tong University) Tong Lili (School of Mechanical Engineering Shanghai Jiao Tong University) Cao Xuewu (School of Mechanical Engineering Shanghai Jiao Tong University)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제52권 제8호
발행연도
2020.8
수록면
1,650 - 1,660 (11page)
DOI
10.1016/j.net.2020.01.030

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초록· 키워드

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Comparing with the large containment, the gas can not flow freely within the local compartment due to the small volume of the compartment in case of serious accident, which affects the hydrogen flow distribution, and it will determines the location where high concentration occurs in compartment. In this paper, hydrogen distribution and possible hydrogen risk in the vessel under the different conditions are investigated. The results show that when the initial gas momentum is increased, the ability of gas enters into the upper region of the vessel will be strengthened, and the hydrogen volume fraction in the upper region of the vessel is higher. Comparing with horizontal source direction, when source direction is vertically towards upper space, hydrogen is more likely to accumulate in the upper region of the vessel. With the increasing of steam mass flow, the dilution effect of steam on the hydrogen volume fraction will be strengthened, while the pressure in the vessel is also increased. When steam flow is decreased, the hydrogen explosion risk is higher in the vessel. The experiment data can provide technical support for the validation of the CFD software and the mitigation of hydrogen risk in the containment compartment

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