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NO96타입 LNG 방열시스템 Divinycell의 극저온 압축 강도 평가
최영락(Yeong-Rak Choe),김정현(Jeong-Hyeon Kim),김종민(Jong-Min Kim),박성균(Sungkyun Park),박강현(Kang Hyun Park),이재명(Jae-Myung Lee) 한국해양공학회 2016 韓國海洋工學會誌 Vol.30 No.5
Divinycell, which functions as both insulation and a supporting structure, is generally applied in the NO96-type liquefied natural gas (LNG) insulation system. Polymer-material-based Divinycell, which has a high strength and low weight, has been widely used in the offshore, transportation, wind power generation, and civil engineering fields. In particular, this type of material receives attention as an insulation material because its thermal conductivity can be lowered depending on the ambient temperature. However, it is difficult to obtain research results for Divinycell, even though the component materials of the NO96-type LNG cargo containment system, such as 36% nickel steel (invar steel), plywood, perlite, and glass wool, have been extensively studied and reported. In the present study, temperature and strain-rate dependent compressive tests on Divinycell were performed. Both the quantitative experimental data and elastic recovery are discussed. Finally, the mechanical characteristics of Divinycell were compared to the results of polyurethane foam insulation material.