한국가스학회지 (Journal of the Korean Institute of Gas)
- 제4권2호
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- Pages.7-14
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- 2000
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- 1226-8402(pISSN)
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- 2713-6922(eISSN)
LMG 배관시스템의 열유동 해석 및 최적설계 프로그램 개발
A Computer Programme Development for Thermal-Hydraulic Analysis and Optimal Design on LNG Pipeline System
- Lee Sanggyu (KOGAS R & D Center) ;
- Hong Seong-Ho (KOGAS R & D Center) ;
- Lee Joong-Nam (Samsung Heavy Co) ;
- Park Seok-Ho (Samsung Heavy Co)
- 발행 : 2000.06.01
초록
생산지로부터 LNG 선박으로 수송되어 각 생산기지의 저장탱크로 저장되는 액화천연가스 (LNG; Liquified Natural Gas)는 극저은인 Boiling Point보다 약간 낮은 온도 (
LNG (Liquified Natural Gas) carried by LNG ship is unloaded into the LNG storage tanks at the very low temperature (a little lower than the boiling point of LNG). Because LNG is unloaded through the pipeline, two phase flow appears in the pipeline. In this study, we have studied the pressure-drop mechanisms of the two-phase flow in the pipeline, and the calculation method of BOG (Boil-off Gas) amount based on the heat transfer mechanism through the insulation and the surface of the pipeline. We have developed a computer program for thermal-hydraulic analysis on the LNG pipeline system. We have also developed the optimal design program to find the optimal thickness of insulation and the pipeline size. The program searches the optimal design with the minimum capital cost of pipelines and insulation on the operating conditions of maximum allowance pressure-drop and BOG amount, etc.