이동식 수소 충전 장비용 수소 밸브의 유체 온도 변화에 따른 유동 특성의 수치해석적 연구

• Published in: 한국수소 및 신에너지학회 논문집 Vol. 33; no. 6; pp. 769 - 775
• Main Authors: 권준영(JUNYEONG KWON), 오승준(SEUNGJUN OH), 최정주(JEONGJU CHOI), 김용기(YONGKI KIM)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 2022
• Subjects: Hydrogen valve(수소 밸브); Flow coefficient(유량계수); Numerical analysis(수치해석); Hydrogen(수소); Temperature(온도)
• ISSN: 1738-7264; 2288-7407
• DOI: 10.7316/KHNES.2022.33.6.769

Global efforts to reduce carbon emissions have focused attention on the development of hydrogen energy and the development of various hydrogen mobility requires mobile hydrogen charging stations. In this study, the flow characteristics of the flow control hydrogen valve for mobile hydrogen charging equipment were studied according to the temperature change of hydrogen gas. The inlet pressure was 100 MPa, the outlet pressure to 70 MPa, and temperature condition was set -40℃ to 85℃. As a result, the difference in the valve flow coefficient, which determines the capacity of the valve, showed a difference within 5% depending on the temperature.