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Analysis of the Effects of Mixing Height and Other Associated Factors

Author(s): I.R. Ilaboya, | E. Atikpo, | L. Umukoro, | F.E. Omofuma | M.O. Ezugwu

Journal: Iranica Journal of Energy and Environment (IJEE)
ISSN 2079-2115

Volume: 2;
Issue: 2;
Start page: 153;
Date: 2011;
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Keywords: Plume Dispersion | Mixing Height | Momentum/Buoyancy | Gaussian Plume equation | Air quality

The overall focus of the research work was to study the various factors that affect plume dilution anddispersion. Some of the factors that were studied include; the effects of mixing height, the effects of plume riseand the effects of terrain in addition to momentum and buoyancy on the overall dispersion of plume releasedfrom a stack of known effective height. Data on temperature versus altitude was collected using an infra - redthermometer at different height of a telecommunication mast under construction. The highest temperature forthe month was noted and the validity of the recorded data was done using correlation analysis. Mathematicalanalysis was then employed to determine the mixing depth which represents the effective height of any stackthat must be placed in such location in other to allow for complete dispersion/dilution of any form of pollutantreleased from any source. Result obtained shows that the effective height of stack that can be erected in suchlocation that will allow for effective dispersion of any pollutants was shown to be 1700m. Any stack below thisheight will lead to ground level pollution. Also discussed in this research paper is the application of GaussianPlume model in the evaluation/analysis of the horizontal dispersion of pollutants released from a height (h).
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