Development of Novel Cascade Impactors for Particle Size Distribution of Mist in Flue Gas
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概要
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Some novel devices have been developed based on the principle of cascade impaction for measuring particle size distribution of mist entrained in flue gas from wet scrubbers such as flue gas desulfurization plants. One of these is a cascade impactor equipped with cassettes combining the impaction plate, the inner wall and the jet nozzle, which is an in-stack type sampler. Conventional impactors can not measure the particle size distribution of mist because liquid particles impacted onto an impaction plate overflow around the edge of the plate. On the other hand, the cassette type cascade impactor can determine the mist size distribution because the cassettes retain mist drain in themselves even if the impactor is set either horizontally or vertically in a duct. In each cassette the inner wall can be easily divided from other parts, and therefore the cascade impactor enables one to estimate the wall loss in the impactor for solid dust sampling which has been in the vague and furthermore to carry out the simultaneous measurements for the particle size distribution and concentration of mist or dust in flue gas.
- 社団法人 大気環境学会の論文
社団法人 大気環境学会 | 論文
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