| 제목 |
상용차용 수소차단밸브의 내부 유로 형상 변경에 따른 유동특성 분석 |
| 분야 |
열유체 및 공조시스템(HVAC) |
| 언어 |
Korean |
| 저자 |
최주환(공주대학교), 김준현(태광후지킨), 김재광(태광후지킨), 김용기(태광후지킨), 서현규(공주대학교) |
| Key Words |
CV(밸브 유량 계수), Pressure(압력), Shut-off valve(차단 밸브), Turbulence kinetic energy(난류 운동 에너지), Velocity(유속) |
| 초록 |
The purpose of this study is to propose a design with optimal performance to prevent the decrease in flow rate and differential pressure performance due to the application of a hydrogen shut-off valve to a hydrogen storage system. A 3D CFD analysis was performed by applying the changed geometry and opening rate of the shut-off valve internal flow path. A valve flow experiment using N2 was conducted for basic analysis, and the experimental results and basic analysis results were compared. As the experimental results of setting the inlet and outlet pressures to be the same for both H2 and N2, the volume flow rate and velocity of H2 were 3.75 times higher than those of N2. In addition, the flow rate increased by 1 %, the pressure decreased by 1 %, and the turbulent kinetic energy decreased by 18 % in the 3-1 condition in which the diameter of the valve needle was reduced to 1 mm. It is determined that condition 3-1 will improve flow performance and reduce vibration and noise. |
| 원문(PDF) |
다운로드
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