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오병택,김영균,윤인수,서흥석,홍성호,Oh, Byoung-Taek,Kim, Young-Kyun,Yoon, Ihn-Soo,Seo, Heung-Seok,Hong, Seong-Ho 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.6
LNG demand has been rapidly increasing in Korea for a variety of reasons including stable supply, non-polluting, and high combustion efficiency characteristics. As a result the construction and expansion of LNG storage facilities have been continuing at a vigorous pace. Korea Gas Corp. (KOGAS) has developed the design technology of the LNG storage tank. One of the most important structural core element of the LNG storage tank is the membrane, made by stainless steel. The membrane to be applied inside of LNG storage tank is provided with corrugations to absorb thermal contraction and expansion caused by LNG temperature. Analytical results have been performed to investigate the strength of the membrane and the reaction farce at the anchor point. Experimental studies are performed to investigate the deformation and strength of the membrane which is designed by Kogas. All experiments are conducted on the basis of RPIS, and we found the results are fully satisfied with the RPIS.
김영균(Young Kyun Kim),오병택(Byoung Taek Oh),홍성호(Heung Seok Seo),서흥석(Seong Ho Hong),윤인수(Ihn Soo Yoon) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
Korea Gas Corp. has developed the design technology of the LNG storage tank. The membrane to be applied inside of LNG storage tank is provided with corrugations to absorb thermal contraction and expansion caused by LNG temperature. It is of significant importance to assure their strength under LNG Temperatures by experimetal stress analysis in Membrane. In this paper, some problems which should be considered when measuring strian at -162℃, are discussed by presenting test results on the characteristics of strain gages, Temperature sensor, adhesive and lead wire. And basis of these results, we developed strain-gage system for the measurement of Membrane strain in LNG Tank.
스트레인 게이지를 이용한 Pilot LNG 저장탱크 멤브레인 실 변형 거동 측정
김영균(Young Kyun Kim),윤인수(Byoung Taek Oh),오병택(Seong Ho Hong),홍성호(Young Myung Yang),양영명(Ihn Soo Yoon) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
Korea Gas Corp. has developed the design technology of the LNG storage tank. The membrane to be applied inside of the LNG storage tank is provided with corrugations to absorb thermal contraction and expansion caused by LNG temperature changes. It is very important to measure their thermal strains under LNG temperatures by analytical and experimental stress analysis of the membrane. We have developed a stress measurement system using strain gages and measured the strain during cooldown and storing the LNG. We also analyzed the measured data by comparison with the FEM data. On the basis of these results, we could design and assure the application of the Kogas Membrane to large scale LNG storage.
설계 변수 변화에 따른 LNG 저장탱크 Steel Roof 거동 분석
김영균(Young Kyun Kim),김지훈(Ji Hoon Kim),오병택(Byoung Taek Oh),홍성호(Seong Ho Hong),김기범(Ki Beom Kim) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
This paper deals with parametric studies for the structural response of LNG Storage Tank steel roof behavior acoording to change in design condition. In the design of steel roof, it may be required to represent a stable behavior under many loading conditions and those of combinations. We fulfill the analysis the steel roof behavior during concret placing and additionally change the design variabls like H beam, pressure and steel roof plate thickness. On the basis of the obtained frsults from this studies a guideline for a more reasonable design of LNG storage tank steel roof is introduced.