大流量連続混合型ＣＮＣの開発と積算型静電粒径測定への応用
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概要
- 論文の詳細を見る
Firstly, a high flow rate (14<I>l</I>/min) mixing type CNC (condensation nucleus counter) has been developed and its performance was evaluated. The counting efficiency of the CNC by use of the condensing vapor of ethylene-glycol and propyrene-glycol was found to be about 60 % and 100 % with 5 nm and 10 nm particles, respectively. Secondly, a new cumulative type electrical mobility analyzer has been developed, where the CNC above developed is combined as a detector of classified aerosol particles and a radio-active source is used as a charger of feed aerosols, and it was found that the analyzer was applicable to size analysis of low concentration (>1.5×10<SUP>7</SUP> particles/m<SUP>3</SUP>) and small (5 ∼ 100 nm) aerosol particles which followed log-normal size distribution.
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