液化ガス船のタンク方式についての考察 : LPG船開発のための予備検討

概要

論文の詳細を見る
Cargo tank system is a fundamental part of liquefied gas carrier and rules main design features of the carrier. With respect to the large LPG carriers, a prismatic tank system was installed in the first carrier in the world. This tank system has been improved step by step and now the most of the carriers have this system. However, the prismatic tank system has inevitable shortcomings suchas heavy tank weight, many number of components, long weld length and much construction man-hours. It is not step by step improvement but development of a new tank system that is able to overcome these shortcomings. Development of liquefied gas carrier with new tank system takes large cost and long period. Therefore, the preliminary study is required to appraise the concept of a new tank system and to plan suitable steps of development. In this paper, a new basic concept of the upright cylindrical tank system is preliminarily studied for LPG carrier. This preliminary study includes evaluation of tank shapes, initial design of 82,000 m^3 LPG carrier and strength analysis of tank with tank support. Result of the preliminary study shows feasibility of improved LPG carrier with upright cylindrical tank system.
社団法人日本船舶海洋工学会の論文
1991-03-29