지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2021.11
- 수록면
- 110 - 113 (4page)
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초록· 키워드
오류제보하기
Check valves are an important component in any hydraulic system. Cryogenic liquids have very low viscosity and also at cryogenic temperature, material shrinks and hardened which increases the sealing gaps dramatically. In this article, we discuss the relation between the flow rate and pressure drop for the check valve used in a high-pressure cryogenic pump. Also, we did a simulation to check the leak and analyze the check valve with and without spring at two different testing conditions: normal closed and with the varying flow direction. We found from the simulation that leakage in the normally closed position is almost zero even at high pressure which is quite different from the real scenario. This result is due to the ideal conditions used by simulation software. We also shown quantitatively that time to change of direction of flow is more for high pressure and it is low as the frequency of proportional directional control valve changes.
목차
Abstract
1. Introduction
2. Pressure drop
3. Check valve testing
4. Conclusion
References
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UCI(KEPA) : I410-ECN-0101-2022-550-000046336