Prediction of pressure increase and evaporation temperature during the course of drying of porous solid soaked with water.

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概要

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• A porous solid sphere 3.92 cm in diameter was soaked with water and dried in a fluidized bed maintained at a constant temperature between 80°C and 140°C. The pressure increase and the temperature profiles within the solid sphere were continuously measured. The pressure increase ΔP, which has been utterly ignored heretofore, was found to be enormous (30 to 246 mmHg). The dynamic effective diffusivity and the flow equation interrelating the gradient of concentration and that of the total pressure provided data to predict accurately this pressure increase during the course of drying. The evaporation temperature Tc was also predictable by solving the flow equations and a simplified equation of heat transfer simultaneously.

• 公益社団法人 化学工学会の論文

著者

• SATO KYOJI

  The Government Industrial Development Laboratory

• ISHIDA MASARU

  The Government Industrial Development Laboratory

• SHIRAP TAKASHI

  The Government Industrial Development Laboratory

関連論文

• Prediction of pressure increase and evaporation temperature during the course of drying of porous solid soaked with water.

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