Effects of brownian coagulation and brownian diffusion on fine particle size analysis by sedimentation method.
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概要
- 論文の詳細を見る
Conventional particle size analysis by sedimentation method does not give true size distributions but only apparent ones, when Brownian coagulation and Brownian diffusion exist. The difference of true and apparent size distributions was theoretically evaluated by numerically solving the population balance equation under various conditions. Then some of the theoretical results were verified experimentally for particles having various sizes and number concentrations which were obtained under sedimentation in air, in water and in centrifugal field by means of ultramicroscopic size analysis. In addition to these analyses, two parameters consisting of given measuring conditions, which were proposed herein, were found to be useful to predict whether or not coagulation and diffusion effects exist in actually observed size distributions.
- 公益社団法人 化学工学会の論文
著者
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Okuyama Kikuo
Department Of Chemical Engineering Faculty Of Engineering Hiroshima University
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Yoshida Tetsuo
Department Of Biotechnology Graduate School Of Agricultural And Life Sciences The University Of Toky
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Kousaka Yasuo
Department Of Chemical Engineering Osaka Prefecture University
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MIYAZAKI Toshihiro
Department of Biology, Faculty of Science, Kumamoto University
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MIYAZAKI TOSHIHIRO
Department of Chemical Engineering, University of Osaka Prefecture
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