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Thermal Analysis of a Cold Box for a Hydrogen Liquefaction Pilot Plant with 0.5 TPD Capacity

0.5 TPD 급 수소액화 파일럿 플랜트의 콜드박스 열해석

  • KIM, HYOBONG (Energy Systems Research Division, Korea Institute of Machinery & Materials) ;
  • HONG, YONG-JU (Energy Systems Research Division, Korea Institute of Machinery & Materials) ;
  • YEOM, HANKIL (Energy Systems Research Division, Korea Institute of Machinery & Materials) ;
  • PARK, JIHO (Energy Systems Research Division, Korea Institute of Machinery & Materials) ;
  • KO, JUNSEOK (Energy Systems Research Division, Korea Institute of Machinery & Materials) ;
  • PARK, SEONG-JE (Energy Systems Research Division, Korea Institute of Machinery & Materials) ;
  • IN, SEHWAN (Energy Systems Research Division, Korea Institute of Machinery & Materials)
  • 김효봉 (한국기계연구원 에너지기계연구본부) ;
  • 홍용주 (한국기계연구원 에너지기계연구본부) ;
  • 염한길 (한국기계연구원 에너지기계연구본부) ;
  • 박지호 (한국기계연구원 에너지기계연구본부) ;
  • 고준석 (한국기계연구원 에너지기계연구본부) ;
  • 박성제 (한국기계연구원 에너지기계연구본부) ;
  • 인세환 (한국기계연구원 에너지기계연구본부)
  • Received : 2020.11.05
  • Accepted : 2020.12.30
  • Published : 2020.12.30

Abstract

Thermal analysis was performed for a cold box of a hydrogen liquefaction pilot plant with 0.5 ton/day capacity. The pilot plant has adopted a hydrogen liquefaction process using two-stage helium Brayton cycle with precooling of liquid nitrogen. The cold box for hydrogen liquefaction has generally vacuum insulation but inevitable heat invasion by conduction and radiation exists. The heat loads were calculated for cold box internals according to multilayer insulation emissivity. Total heat load of 181.7 W is estimated for emissivity of 0.03 considered in field condition.

Keywords

References

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