コンテナ内貨物の汗ぬれ損傷に対する防止策-II : 物理吸着型シリカゲルの効果

概要

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Recently Japan has been dependent on foreign imports for such agricultural products as wheat and soybeans. The cargo-container transportation plays an important role for the importation, but the sweat damages that occur during rapid cooling processes has been a serious problem. We made the mechanism of occurrence of the sweat damages clear by means of experiments and simulation on the containers loaded soybean, and suggested the use of the chemical adsorption type silica gel, the desiccant, for a prevention of the sweat damages. In this paper, we investigated the effect of the physical adsorption type silica gels (B and ID) on the prevention of the sweat damages in comparison with the chemical adsorption type silica gel. All the silica gels proved effective on the prevention of the sweat damages. The degrees of the effectiveness were considerably different and the physical adsorption type silica gel (B) showed the highest one. Further, when the silica gels weren't fixed in the upper air layer of the container but in the lower air layer, they exhibited no effect. These results concluded that the addition of the silica gel would be a more effective method by the selection of a silica gel and a place where it is set.
社団法人日本航海学会の論文
2004-03-25