Article

Article title THE MATHEMATICAL MODEL DEVELOPMENT FOR DUST CONCENTRATION MEASURING IN COAL MINES
Authors R.I. Solomichev
Section SECTION II. MATHEMATICAL MODELS AND METHODS
Month, Year 05, 2013 @en
Index UDC 621.384.3
DOI
Abstract The mathematical model basis on the optical method of the dust concentration measuring channel was developed. The conversion characteristic of the light intensity radiation that passing through the open channel measurement, the change is proportional to the change of the dust concentration in the coal mine atmosphere obtained and investigated. In the obtained model does not take into account the destabilizing factors: changes in atmospheric pressure, humidity and temperature. The simulation results analysis can put requirements for the model sample meter optical parameters of dust components: the fiber channel base size should be set to no more than l=0,1 m, with a volume-surface diameter mean of polydisperse dust D32=5,62μm to take measurements in three subranges at different radiation wavelengths (from 0 to 0,64 g/m3 –λ=0,47μm, from 0.64 to 1.54 g/m3 –λ=0,52μm, from 1.54 to 3 g/m3 –λ=0,583μm), which will linearize the transformation characteristic and obtain the total measurement accuracy at least of 10%.

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Keywords Mathematical model; the optical channel; dispersion; dust; radiation flux transformation characteristic.
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