Abstract
Coal trains have an intensive impact on environment pollution. It is very important to predict adequately this impact during coal transportation. In Ukraine to predict atmosphere pollution from coal trains the regulatory model «OND-86» is used. This model does not take into account some important factors and coal train movement. We present numerical models to solve two problems:1) prediction of atmosphere pollution in the case of moving coal train; 2) prediction of atmosphere pollution in the case of additional special boards installation on the coal wagon. To solve these problems equation of coal duct convective-diffusive dispersion (Lagrange model of admixture dispersion) and equation of potential flow were used. Governing equations were numerically integrated using implicit difference schemes. For coding difference equations we used FORTRAN language. We present results of numerical experiments and laboratory experiments which illustrate the efficiency of the special additional boards installation on the coal wagon. These boards have «internal wing» and «external wing». The obtained results illustrate that installation of additional boards allows to minimize the atmosphere pollution near transport corridor.
Highlights
A problem of fugitive dust release from coal trains is of great importance in the problem of environmental protection and attracts scientist’s attention in different countries [1,2,3,4]
A literature search made by authors showed that research work in the field of dust release during coal transportation in wagons has not been conducted in Ukraine
Mathematical modeling of the atmosphere pollution during coal transportation was conducted in two scales: microscale and local scale
Summary
A problem of fugitive dust release from coal trains is of great importance in the problem of environmental protection and attracts scientist’s attention in different countries [1,2,3,4]. A literature search made by authors showed that research work in the field of dust release during coal transportation in wagons has not been conducted in Ukraine. In Ukraine, to estimate the atmosphere pollution during coal transportation in open wagons the empirical model OND-86 is used. This model does not take into account some very important factors, for example: coal train movement, atmosphere turbulent diffusion, etc. Lazaryan (Ukraine, Project 0115U007227 “Environment protection at the elements of transport infrastructure”)
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