A Basic Study on Moisture Movement and Prevention of Uneven Moisture Distribution in Grain Silo. Possibility of Dew Condensation to the Silo Inwall.

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  • 穀物貯蔵サイロにおける水分移動と水分むら防止に関する基礎的研究　　サイロ内壁面における結露・滴下の可能性
  • コクモツ チョゾウ サイロ ニ オケル スイブン イドウ ト スイブン ムラ ボウシ ニ カンスル キソテキ ケンキュウ サイロ ナイ ヘキメン ニ オケル ケツロ テキカ ノ カノウセイ
  • Possibility of Dew Condensation to the Silo Inwall
  • サイロ内壁面における結露・滴下の可能性

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We measured the temperature and the relative humidity of the upper airspace of a grain silo and the atmosphere nearby the outside silo wall, to investigate the moisture movement in a rough rice storage silo of a country elevator. Using the measured values and results of model experiment, we estimated complementarily the temperature and the moisture distribution in grain layer by numerical analysis, and investigated the possibility of the dew condensation to the inside wall and the ceiling of the grain silo. As the result, we reached the conclusion that main cause for the uneven moisture distribution is the dew condensation and the water droplet from wall or ceiling into the grain layer rather than the water vapor movement through the air between the grain kernels.

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