Program Development on the Thermofluidodynamic Analysis of LNG Storage Tanks

LNG 저장탱크 종합 열유동 해석프로그램 개발

  • 김호연 (한국가스공사 연구개발원) ;
  • 최성희 (한국가스공사 연구개발원) ;
  • 이정환 (한국가스공사 연구개발원) ;
  • 박영 (한국가스공사 연구개발원) ;
  • 하종만 (한국가스공사 연구개발원) ;
  • 주상우 (영남대학교 기계공학부)
  • Published : 2001.06.27

Abstract

Cryogenic LNG(Liquefied Natural Gas) which is stored in the cylindrical storage tanks of $100,000m^{3}$ has very complex flow phenomena and the changes of thermal properties with exterior conditions and operation mdoes. These complex thermofluid behaviors are affected by the storage, exterior conditions of LNG, design specifications and heat transfer characteristics of tanks, Also, those have influence on the stable storage and supply of LNG in the storage tanks. Thus this study performed the analysis on the 2-D heat transfer of the tank with exterior conditions, on the Cool Down Process in order to cool down the LNG Storage Tank at the initial normal state, and on the Filling Process considered for incoming and rising of LNG. The analysis on the Mixing LNG Storage was studied too. At last, the visualized program on the complex thermofluidodynamic analysis was developed on the basis of the above analyses. The development of this program becomes to be used to the basic design of the commercial tanks as well as to assure technical skill of the analysis on the thermal stability of the stored LNG in the LNG Storage Tank.

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