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Kolesnik V. Ye.
Determination of dynamic parameters of dust emission from a coal mine fang [Електронний ресурс] / V. Ye. Kolesnik, А. V. Pavlichenko, Yu. V. Buchavy // Науковий вісник Національного гірничого університету. - 2016. - № 2. - С. 81–87. - Режим доступу: http://nbuv.gov.ua/UJRN/Nvngu_2016_2_15
Purpose. To prepare the method of dynamic parameters prediction for dust emission from a coal mine fang. Methodology. The methodology is based on the stochastic nature of mine capacity. That is why we suggested determining the dynamic parameters for dust emission from coal mine fang according to the random process of mine capacity in a one-month period. The common solutions of mathematic the problem of the overshoot of the random process above a set level were applied. Findings. It was stated that the volumes of dust emission from a fang are proportional to one-hour capacity of skip hoisting. The probabilistic assessment of capacity dynamics and dust emission was carried out; it can be applied for the prediction of ecological danger level of dust emission from a coal mine fang. As a result of integration of problem of the overshoot of the random process above a set level, the following average values were determined: the time of the definite level exceeding in a definite period; number of cases of the definite level overriding; the duration of the process overriding the normalized level. The probabilistic assessment of dust emission dynamics from coal mine fang enables confidence increase for the prediction of pollution level of atmospheric air and its danger rate compared with the existing assessment of annual average emission volumes. Originality. The methodology of dynamic parameters assessment for solid particles (dust) emission from coal mine fang was prepared as based on the data of mine capacity changes in one-month period. Practical value. The obtained regularities of dust emission formation of coal mine allow the prediction of the level of environmental objects pollution in the adjacent territories and to take timely measures for protection of the environment.
Kolesnik V. Ye.
Dynamic parameters estimation of dust emissions of heat-and-power objects of coal mines [Електронний ресурс] / V. Ye. Kolesnik, А. V. Pavlichenko, Yu. V. Buchavy // Науковий вісник Національного гірничого університету. - 2016. - № 5. - С. 91-97. - Режим доступу: http://nbuv.gov.ua/UJRN/Nvngu_2016_5_16
Purpose. The development of estimation and prediction methods of dynamic parameters of dust emissions for coal-fired heat-and-power objects. Methodology. The methods are based on the fact that the productivity of a heat-and-power objects is of stochastic nature. To determine the dynamic parameters of dust emissions from a flue of mine boiler facility the solutions of mathematic problem of random process emission in a definite level were used. The concentration of dust particles in the emissions of a heat-and-power object is determined as based on the selective realization of the random process of capacity in one-month period. To determine the peculiarities of maximum surface concentrations distribution and graph dust dispersion with respect to productivity of heat-and-power objects we used the UPRZA "EKOtsentr" software implementing the main principles of OND-86 methods. Findings. The estimation of dynamics of productivity and dust emissions was carried out, which can be used for the monitoring of the degree of ecological danger of the emissions of heat-and-power objects of coal mining enterprises. The estimations of dust emission dynamics of heat-and-power objects allow improvement of prediction reliability for atmospheric air pollution in coal mining regions, as well as its danger level, in comparison with the estimation based on the average annual emission volumes. Originality. The estimation and prediction methods of dynamic indicators of particulate matter (dust) emissions by heat-and-power objects of mines with respect to the volume of their solid fuel consumption were developed. Practical value. The obtained regularity of pollutant ventilation, emitted by heat-and-power objects of mines, enables prediction of the levels of pollution for environmental objects of the adjacent territories, as well as taking timely air protection measures.
Biliaiev M. М.
Determination of areas of atmospheric air pollution by sulfur oxide emissions from mining and metallurgical and energy generating enterprises [Електронний ресурс] / M. М. Biliaiev, T. I. Rusakova, V. Ye. Kolesnik, А. V. Pavlichenko // Науковий вісник Національного гірничого університету. - 2017. - № 3. - С. 100-106. - Режим доступу: http://nbuv.gov.ua/UJRN/Nvngu_2017_3_18
Purpose. Development of methods and software for determining levels and zones of atmospheric air pollution by emissions from mining and power generating companies that contain significant volumes of sulfur oxides. Methodology. The forecast of the level of atmospheric air pollution by sulfur-containing emissions from mining and power generating companies is based on a mathematical model for calculating the concentration of sulfur dioxide, which takes into account the processes of its oxidation, as well as the formation and evaporation of sulfuric acid in the atmosphere. The numerical method is based on the joint solution of the equations of convective-diffusion transport of pollutants that come directly from enterprises or are formed additionally due to chemical reactions in the atmosphere. The technique is implemented using implicit difference schemes. Findings. The developed methodology and software allow predicting the levels of atmospheric air pollution by large industrial enterprises taking into account chemical transformations of sulfur oxides in the environment. A number of numerical experiments have been carried out to estimate the levels and zones of atmospheric air pollution in the city of Dnipro with sulfur dioxide near industrial enterprises, taking into account various meteorological conditions. Originality. The regularities of atmospheric air pollution by sulfur-containing emissions from industrial enterprises are established on the basis of a joint solution of transport process equations as for impurities coming from sources of pollution and transformation as a result of chemical reactions in the atmosphere. Practical value. The developed forecast method and software allow determining the concentration of pollutants in the atmosphere and assessing the level of environmental hazard of large industrial enterprises. The obtained patterns of dispersion of sulfur oxides make it possible to predict pollution levels of environmental objects on the territory of industrial cities and to introduce air protection measures in a timely manner.
Kolesnik V. Ye.
Determination of trends and regularities of occurrence of emergency situations of technogenic and natural character in Ukraine [Електронний ресурс] / V. Ye. Kolesnik, O. O. Borysovs'ka, А. V. Pavlychenko, A. L. Shirin // Науковий вісник Національного гірничого університету. - 2017. - № 6. - С. 124-131. - Режим доступу: http://nbuv.gov.ua/UJRN/Nvngu_2017_6_20
Evaluation of the influence of climatic and geomorphological factors on landslides development [Електронний ресурс] / O. Kovrov, V. Kolesnik, Yu. Buchavyi // Екологічна безпека та природокористування. - 2018. - № 1. - С. 52-63. - Режим доступу: http://nbuv.gov.ua/UJRN/ebpk_2018_1_8
Cherepin V. T.
Secondary ion emission during the proton bombardment of metal surfaces [Електронний ресурс] / V. T. Cherepin, M. O. Vasylyev, I. M. Makeeva, V. M. Kolesnik, S. M. Voloshko // Progress in physics of metals. - 2018. - Vol. 19, № 1. - С. 49-69.
Повний текст публікації буде доступним після 01.04.2020 р., через 343 днів