Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Prediction of Changes in Filling Time and Temperature of Hydrogen Tank According to SOC of Hydrogen

수소 잔존 용량에 따른 수소 탱크 충전 시간 및 온도 변화 예측

  • LEE, HYUNWOO (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • OH, DONGHYUN (Korea Testing & Research Institute) ;
  • SEO, YOUNGJIN (Department of Mechanical Engineering, Kumoh National Institute of Technology)
  • 이현우 (금오공과대학교 기계공학과) ;
  • 오동현 (한국화학융합시험연구원) ;
  • 서영진 (금오공과대학교 기계공학과)
  • Received : 2020.06.10
  • Accepted : 2020.08.30
  • Published : 2020.08.30
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Abstract

Hydrogen is an green energy without pollution. Recently, fuel cell electric vehicle has been commercialized, and many studies have been conducted on hydrogen tanks for vehicles. The hydrogen tank for vehicles can be charged up to 70 MPa pressure. In this study, the change in filling time, pressure, and temperature for each hydrogen level in a 59 L hydrogen tank was predicted by numerical analysis. The injected hydrogen has the properties of real gas, the temperature is -40℃, and the mass flow rate is injected into the tank at 35 g/s. The initial tank internal temperature is 25℃. Realizable k-epsilon turbulence model was used for numerical analysis. As a result of numerical analysis, it was predicted that the temperature, charging time, and the mass of injected hydrogen increased as the residual capacity of hydrogen is smaller.

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References

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