单选题

采用电除尘器对某燃煤电厂飞灰进行处理,处理风量为1.28×105m3/h,入口粉尘浓度为ci=13.325g/m3,出口粉尘浓度为c0=0.33g/m3,,效率为η=97.5%,集尘板总面积为A=1180m2,断面积为25m2,则该电除尘器的比表面积A/Q和有效趋进速度ωp分别为()。

A17.7s/m,0.052m/s

B17.7s/m,0.104m/s

C35.4s/m,0.052m/s

D35.4s/m,0.104m/s

正确答案

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答案解析