Analysis of two main LNG CCS (cargo containment system) insulation boxes for leakage safety using experimentally defined thermal properties

作者：Choi Sung Woong^*; Roh Jeong U; Kim Moo Sun; Lee Woo Il

来源：Applied Ocean Research, 2012, 37: 72-89.

DOI：10.1016/j.apor.2012.04.002

• GTT NO 96
• GTT Mark III
• Perlite
• Plywood
• Polyurethane foam
• LNG (liquefied natural gas)

Given that LNG cargo containment systems (CCS) operate in a range of environmental temperatures that includes cryogenic temperatures, thermal analysis should be carried out to determine their insulation capabilities. CCS components consist of various materials, and the temperature distribution of the CCS insulation box is the main concern. For this study an experiment was conducted to measure the thermal conductivity of insulation materials used in a LNG CCS under various temperature conditions ranging from room temperature to cryogenic temperature. Using the experimentally determined thermal properties a steady-state thermal analysis of a CCS insulation box was investigated. In addition a thermal analysis was conducted for the hull part of a carrier ship in a scenario in which LNG leaked through the secondary barrier of the insulation due to an accident. The safety of the hull was considered based on the ductile-to-brittle transition temperature of the hull.

• 出版日期2012-8