| Project/Area Number |
18K18922
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 25:Social systems engineering, safety engineering, disaster prevention engineering, and related fields
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| Research Institution | Kobe University |
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Principal Investigator |
Sasa Kenji 神戸大学, 海事科学研究科, 教授 (10360330)
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| Co-Investigator(Kenkyū-buntansha) |
川原 秀夫 大島商船高等専門学校, 商船学科, 教授 (80300622)
箕浦 宗彦 大阪大学, 大学院工学研究科, 准教授 (30294044)
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| Project Period (FY) |
2018-06-29 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 汗濡れ / コンテナ / 気象海象 / 実海域 / 貨物損傷 / 最適運航 / 海上輸送 / 気象・海象 / 気象変化 / 温湿度 / 日射量 / 実船実験 / ウェザールーティング / 貨物管理 |
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| Outline of Final Research Achievements |
Condensation inside the marine container occurs during voyages owing to weather changes. In this study, we define the condensation probability along one of the major routes for container ships between Asia and Europe. First, the inside and outside air conditions were measured on land in Japan, and a correlation analysis was conducted to derive their relationship. Second, onboard measurements were conducted for 20,000 twenty-foot equivalent unit ship to determine the variation in outside air conditions. It was shown that the condensation probability remains at approximately 50% in 3 cases during the winter season, especially in the westbound route, regardless of the loading ports. However, the condensation probability is lowered by 10%-20% if the container is loaded at lower latitudes, e.g., in Colombo, Sri Lanka, and Kaohsiung, Taiwan, in voyage from Europe to Asia in summer and in fall, and in voyage from Asia to Europe.
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| Academic Significance and Societal Importance of the Research Achievements |
関係者に調査した結果、汗濡れによる貨物被害は相当数発生し甚大な損害額が想像されるが、損害保険での補填を都度行うなど場当たり的な対応に止まっている。貨物損傷の詳細が公開されず、研究成果も有効に反映されない現状を踏まえ、時空間スケールでの汗濡れ状況を予測評価した全く新しいコンテナ輸送の方法論構築の必要性を確信した。貨物損傷の低減により食糧品をはじめ生活必需品の安全かつ円滑な貨物流通に大きく貢献できる。輸送時間、燃料消費量、CO2排出量等に加え、汗濡れ確率と両立した新たな海上コンテナ輸送の概念は全く存在せず、本構想は我々の日常生活に計り知れないインパクトと波及効果が期待される。
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