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http://dx.doi.org/10.7842/kigas.2021.25.2.28

A Numerical Study Of Flow Control Valve to Flow Characteristics by Pressure Difference for Hydrogen Station  

Nam, Chung-Woo (Powertrain Efficiency R&D Center, KATECH)
Kim, Rak-Min (Powertrain Efficiency R&D Center, KATECH)
Kim, Hyun-Hyo (Dept. of R&D, HIFLUX LTD.)
Publication Information
Journal of the Korean Institute of Gas / v.25, no.2, 2021 , pp. 28-33 More about this Journal
Abstract
With the recent growing interest in eco-friendly cars, as interest in eco-friendly cars increases, interest and purchase of hydrogen fuel cell vehicles that do not emit pollutants are increasing. Recently, the government is supporting the expansion of hydrogen charging station and localization of core parts according to the government's hydrogen energy dissemination policy. In this study, the flow characteristics of the hydrogen flow control valve were investigated. As the differential pressure increases, the mass flow rate and flow coefficient tend to be different from the volume flow rate. And it was confirmed that it affects the hydrogen temperature due to the nozzle effect in the bottleneck section, and the change in density affects the mass flow rate.
Keywords
flow contol valve; flow coefficient; range abillity; pressure difference; hydrogen staion; computation fluid dynamics;
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