지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
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The leakage of cryogenic LNG through cracks in the insulation membrane of an LNG carrier causes the hull structure to experience a cold spot as a result of the heat transfer from the LNG. The hull structure will become brittle at this cold spot and the evaporated natural gas may potentially lead to a hazard because of its flammability. This paper presents a computational model for the LNG flow and heat diffusion in an LNG insulation panel subject to leakage. The temperature distribution in the insulation panel and the speed of gas diffusion through it are simulated to assess the safety level of an LNG carrier subject that experiences a leak. The behavior of the leaked LNG is modeled using a multiphase flow that considers the mixture of liquid and gas. The simulation model considers the phase change of the LNG, gas-liquid multiphase interactions in the porous media, and accompanying rates of heat transfer. It is assumed that the N096-GW membrane storage is composed of glass wool and plywood for the numerical simulation. In the numerical simulation, the seepage, heat diffusion, and evaporation of the LNG are investigated. It is found that the diffusion speed of the leakage is very high to accelerate the evaporation of the LNG.
목차
ABSTRACT
1. 서론
2. LNG 유출 현상의 정식화
3. LNG 유출의 수치모델
4. 수치 해석 결과
5. 결론
References
참고문헌 (24)
참고문헌 신청
Aungier, R.H / 1995 / A Fast, Accurate Real Gas Equation of State for Fluid Dynamic Analysis Applications / Journal of Fluids Engineering 117:277~281
Bae, J / 2007 / Safety Evaluation of Mark III Type LNG Carriers under Barrier Leakages / Proceedings of 15th International Conference of Liquefied Natural Gas
Caps, R / 2000 / Thermal Conductivity of Opacified Powder Filler Materials for Vacuum Insulations 1 / International Journal of Thermophysics 21(2):445~452
Choi, I / 2013 / Cryogenic Sandwich-Type Insulation Board Composed of E-Glass/Epoxy Composite and Polymeric Foams / Composite Structures 102:61~71
Choi, S. W / 2012 / Analysis of Two Main LNG CCS (Cargo Containment System) Insulation Boxes for Leakage Safety using Experimentally Defined Thermal Properties / Applied Ocean Research 37:72~89
Bae, J / 2007 / Safety Evaluation of Mark III Type LNG Carriers under Barrier Leakages / Proceedings of 15th International Conference of Liquefied Natural Gas
Caps, R / 2000 / Thermal Conductivity of Opacified Powder Filler Materials for Vacuum Insulations 1 / International Journal of Thermophysics 21(2):445~452
Choi, I / 2013 / Cryogenic Sandwich-Type Insulation Board Composed of E-Glass/Epoxy Composite and Polymeric Foams / Composite Structures 102:61~71
Choi, S. W / 2012 / Analysis of Two Main LNG CCS (Cargo Containment System) Insulation Boxes for Leakage Safety using Experimentally Defined Thermal Properties / Applied Ocean Research 37:72~89
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UCI(KEPA) : I410-ECN-0101-2016-559-001022390