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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on the Thermal Characteristics of High Pressure Hydrogen Storage Tank according to Nozzle Angle and Length/Diameter Ratio

고압수소 저장용기의 노즐 각도 및 길이/직경비에 따른 열적 특성 연구

  • JEONG HWAN YOON (Technical Center for High-Performance Valves, Dong-A University) ;
  • JUNYEONG KWON (Technical Center for High-Performance Valves, Dong-A University) ;
  • KYUNG SOOK JEON (Technical Center for High-Performance Valves, Dong-A University) ;
  • JIN SIK OH (STG Co., Ltd.) ;
  • SEUNG JUN OH (Technical Center for High-Performance Valves, Dong-A University)
  • 윤정환 (동아대학교 고기능성밸브 기술지원센터) ;
  • 권준영 (동아대학교 고기능성밸브 기술지원센터) ;
  • 전경숙 (동아대학교 고기능성밸브 기술지원센터) ;
  • 오진식 ((주)에스지티) ;
  • 오승준 (동아대학교 고기능성밸브 기술지원센터)
  • Received : 2023.05.10
  • Accepted : 2023.10.11
  • Published : 2023.10.30
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Abstract

Recently, study on hydrogen is being conducted due to environmental pollution and fossil fuel depletion. High-pressure gas hydrogen commonly used is applied to vehicle and tube trailers. In particular, high-pressure hydrogen storage tank for vehicles must comply with the guidelines stipulated in SAE J2601. There is a charging temperature limitation condition for the safety of the storage tank material. In this study, numerical analysis method were verified based on previous studies and the nozzle angle was changed for thermal management to analyze the increase in forced convection effect and energy uniformity due to the promotion of circulation flow. The previously applied high-pressure hydrogen storage tank has a length/diameter ratio of about 2.4 and was analyzed by comparing the length/diameter ratio with 8. As a result, the circulation flow of hydrogen flowing into the high-pressure hydrogen storage tank is promoted at a nozzle angle of 30° than the straight nozzle and accordingly, the effect of suppressing temperature rise by energy uniformity and forced convection was confirmed.

Keywords

Acknowledgement

이 논문은 2022년도 정부(교육부)의 재원으로 한국연구재단 기초연구사업의 지원을 받아 수행된 연구임(No. 2022R1I1A1A01070576).

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