空気による粉粒体の輸送に関する研究 : 第1報, まっすぐな輸送管内の圧力降下

概要

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The authors have found a formula for the pressure drop of flow through a pipe by comparing the resistance of solids placed in an unlimited flow with that of solids when they are placed in a pipe. This formula shows the relation between the pressure drop in the flow through a straight pipe and the physical properties of fluid and the weight ratio of solids to air in the flow. The experimental constant in the equation is estimated basing on the results of experiments in conveying wheat and almina through a straight pipe. In order to find out whether or not this formula will prove of general use, we carried out experiments repeatedly under various conditions, letting soy beans, grain of synthetic rosin, cement, powdered clay and polishing sand run through straight pipes placed at various angles. The results of the experiment and the theoretical values of the formula show close agreement with each other within the range of the erros of measurement.
一般社団法人日本機械学会の論文
1961-11-25