Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Thermal Analysis of Insulation System for KC-1 Membrane LNG Tank

KC-1 Membrane LNG 탱크 단열시스템의 열해석에 관한 연구

  • 정현원 (단국대학교 화학공학과) ;
  • 김태현 (단국대학교 화학공학과) ;
  • 김석순 (한국가스공사 LNG기술연구센터) ;
  • 심재우 (단국대학교 화학공학과)
  • Received : 2016.09.26
  • Accepted : 2017.04.20
  • Published : 2017.04.30
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Abstract

Recently, a new type of LNG membrane Tank called the "KC-1 membrane LNG Tank" was developed by KOGAS (Korean Gas Corporation). It is necessary to estimate the temperature distribution of the hull structure and insulation system for this new LNG tank, as well as the BOR (Boil-Off Rate) when exposed to outside temperature conditions to ensure the integrity of the tank structure and limit LNG evaporation, from a safety evaluation point of view. In this study, temperature distribution calculations for the hull structure and insulation system of the KC1 membrane tank were compared by employing four numerical approaches under the IGC condition. Approaches 1-3 studied 2D simulations and approach 4 used a 3D numerical simulation. Approach 1 was calculated by in-house Excel VBA codes and the three other approaches utilized ANSYS Fluent. The BOR of approach 4, the 3D simulation case, for the IGC condition was 0.0986%/day.

Keywords

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