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논문 기본 정보

자료유형
학술저널
저자정보
Kyungyul Chung (Korea Institute of Machinery & Materials) Myungbae Kim (Korea Institute of Machinery & Materials) Yongshik Han (Korea Institute of Machinery & Materials) Sunghoon Cho (Korea Institute of Machinery & Materials) Le-Duy Nguyen (University of Science and Technology)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제44권 제2호
발행연도
2020.4
수록면
104 - 110 (7page)
DOI
10.5916/jamet.2020.44.2.104

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초록· 키워드

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The study of spread of cryogenic liquids is an essential procedure for assessing the risk of using cryogenic liquids. There are various numerical models for describing the spread of a liquid pool formed by leakage of a cryogenic liquid. Some models, such as the constant Froude number model and the shallow layer model, require the vaporization velocity as the input variable. The vaporization velocity should be determined experimentally because the heat transfer mechanism between the liquid pool and the surrounding is very complicated and difficult to model. In this study, liquid nitrogen and liquid oxygen were continuously discharged onto a 3 m diameter unbounded concrete plate to measure the vaporization velocity when the liquid pool was spreading. Since the concrete plate is heavy, it is impossible to simultaneously measure the radius of the pool using the thermocouple and the mass of the pool using the electronic scale. So only the spread radius of the pool was measured. Therefore, the vaporization velocity was evaluated based on the semi-analytical model using pool spread data. Various release rates were obtained using several nozzles, and the effect of the rates on the vaporization velocity was investigated.

목차

Abstract
1. Introduction
2. Vaporization Model
3. Experimental Setup
4. Results and Discussion
5. Conclusion
References

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