大気汚染研究
Online ISSN : 2186-3687
ISSN-L : 0039-9000
排ガス上昇高さ計算式の比較と評価
岡本 真一岡西 祥太郎広尾 純塩沢 清茂
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1977 年 12 巻 8-9 号 p. 456-465

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The ground level concentration of pollutants downwind of a tall chimney decreases as the effective stack height increases. In order to estimate downwind concentrations resulting from the emission of a gaseous stack effluent, the effective stack height must be known. The effective stack height is the actual height plus the rise of the plume due to momentum and buoyancy of the effluent. Many equations to predict plume rise from stack and meteorogical parameters have been proposed, but none is uniformly accepted.
In this paper, 367 plume rise observations were used to test the ability of twenty-six of the published and commonly used equations to predict plume rise, and calculated plume rise values were compared with observed values. As the results, most equations overestimated plume rise in low wind speed, but the CONCAWE and the optimized CONCAWE equations gave the best fit with observed plume rise.

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