Power Engineering and Ecology | |
ArticleName | Diffuse dust emission for embankment and estimation of plausibility |
ArticleAuthor | R. Schenck |
ArticleAuthorData | IBD Wettin (Wettin, Germany): Schenck R., Dr. Eng., Prof., e-mail: ibswettin@web.de |
Abstract | The theory of dust abrasion was justified by Kahnwald in 1977. This allows to calculate the dust settlement for certain applications in the iron and steel industry and was taken over by the VDI guideline 3790, Part 3, in 1999. It is also recommended for further bulk goods. It is shown that further investigations for determination of diffuse emissions in transportation and transloading of bulk materials is connected mainly with empiric approaches. Different authors displayed either excessive, or lowered values, therefore mine and pit operators have to provide additional aerodynamic and field testings to determine more reliable emission criteria. In this connection, an integral process demonstrates the best efficiency. Comparative calculations led to the result that the descriptive key figures by means of wind tunnel tests have to be defined anew and that the indicated validity criteria should be specified. In contrast to differential algorithms, any kind of emissions, particularly also in the steel and iron industry, can be reliably evaluated with integral proceedings or calculated by means of measurements. Direct and indirect processes for determination of diffuse emissions are described with corresponding set of formulas confirming that required tools for calculation of emissions is available. |
keywords | Dust emission, iron and steel industry, diffuse emissions, bulk materials, tunnel tests, calculation, validity criteria |
References | 1. Kahnwald, H.: stahl u. eisen 97 (1977) Nr. 2, S. 78/84. |
Language of full-text | russian |
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