粉じんの濃度測定に関する研究 : 第2報, ろ紙の特性

概要

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Studies were made on the dust collection efficiency and the specific resistance of flat paper filter, which were very important factors for our measuring method of the dust concentration in the flowing gases. In these studies, it has been found that the true dust collection efficiency of the filter paper must be expressed by the value of η^*=dW/dW_s instead of η=ΣW/ΣW_s and also the specific resistance expressed by the value of α^*=dK_d/dw instead of α=K_d/w. And then, the conception of the initial efficiency of the paper filter, the saturated dust quantity of 100% collection efficiency and the critical dust quantity of the specific resistance have been introduced. Results of both the collection and draft tests in consideration of the above, have revealed the following : (1) η^* approached 100% in accordance mith piling of dust on the paper filter.(2) The mean values of the specific resistance α^* gained from the preliminary experiments should be used as the constant values of the specific resistance.
一般社団法人日本機械学会の論文
1962-02-25