현무암섬유를 이용한 LNG 화물창 2차 방벽의 기계적 특성에 대한 연구 = Effects of Basalt Fiber on the Mechanical Properties of Secondary Barrier for LNG Cargo Containment System

다국어 초록 (Multilingual Abstract)

Recently, with the strengthening of environmental regulations, there has been an increasing interest in eco-friendly energy sources, leading to a trend of the increasing scale of Cargo Containment Systems (CCS) for Liquefied Natural Gas (LNG) carriers.Among these systems, membrane tanks have gained popularity in LNG transport vessels due to their superior spatial utilization and competitiveness. However, due to high initial investment costs and the difficulty in repair in case of damage, a safety layer, the secondary barrier, must be installed without fail.In this study, in order to apply a new secondary barrier to the existing membrane-type LNG CCS, tests were conducted on the fiberglass layer previously used in the Triplex-Flexible Secondary Barrier (FSB), substituting it with basalt fiber. Tensile and vertical tensile tests were performed to assess the newly applied material. Environmental tests were conducted at room temperature (2 5℃) and extremely low temperatures (-170℃), considering the temperatures to which substances may be exposed during LNG vessel operations. The basalt-FSB produced in this study demonstrated superior results compared to the specifications of the existing product, confirming its potential applicability for implementation.

참고문헌 (Reference)

1 Kim, J. H., "Technical trends of LNG fueledship and bunkering"

2 Arrington, M., "Some properties of mixed fibre cfrp" 9 (9): 149-152, 1978

3 박진형 ; 오동진 ; 김민규 ; 김명현, "Estimation of Fatigue Characteristics Using Weibull Statistical Analysis with Aramid Fiber on LNGC Secondary Barrier" 54 (54): 415-420, 2017

4 방승길 ; 염동주 ; 정연제 ; 김희태 ; 김정대 ; 이제명, "Effects of Aramid Fiber on the Mechanical Properties of Secondary Barrier for LNG Cargo Containment System" 58 (58): 206-213, 2021

5 염동주 ; 방승길 ; 정연제 ; 김희태 ; 박성보 ; 김용태 ; 오훈규 ; 이제명, "Applicability Assessment of Epoxy Resin Reinforced Glass Fiber Composites Through Mechanical Properties in Cryogenic Environment for LNG CCS" 58 (58): 262-270, 2021