Results 21 to 30 of about 21,023 (226)

Prediction method of coal spontaneous combustion based on relevance vector machine

open access: yesGong-kuang zidonghua, 2020
In terms of coal spontaneous combustion degree prediction, the radial basis function (RBF) neural network method is complex in structure and easy to fall into local optimum, the kernel function based on support vector machine (SVM) is sensitive to ...
LIU Bao   +4 more
doaj   +1 more source

A Technique for Decreasing Reactivity of Coal Material to Suppress the Oxygen Absorption Process [PDF]

open access: yes, 2016
The paper describes the mechanisms of self-ignition formation in coal liable to spontaneous combustion, on the basis of experimental works performed to analyze heat and mass transfer in the coal-air system.
Gubanova, А. R.   +2 more
core   +1 more source

Applying European approach to predict coal self-heating in Ukrainian mines [PDF]

open access: yes, 2019
Purpose is the prediction of coal self-heating and determination of the factors effecting the dynamics of emission of tracer gases (TG) used for routine control of coal self-heating within the production unit involving European approach. Methods.
Gamiy, Yu   +5 more
core   +1 more source

A Sensitive and Reliable Carbon Monoxide Monitor for Safety-Focused Applications in Coal Mine Using a 2.33-$\mu$ m Laser Diode [PDF]

open access: yes, 2020
In this paper, a stable and reliable carbon monoxide (CO) monitoring system with high sensitivity (at sub-ppm level) was designed and demonstrated with particular reference to use in the mining industry, tailoring the design specifically for forecasting ...
Grattan, K. T. V.   +8 more
core   +1 more source

Spontaneous combustion of coals and coal-shales

open access: yesInternational Journal of Mining Science and Technology, 2018
Spontaneous combustion of coal is a well-known phenomena around the globe. Apart from the coal itself, burning coal-shales is becoming a problem in the South African coal mines.
M. Onifade, B. Genc
doaj   +1 more source

Spontaneous Combustion of Coal (III)

open access: yesFire Science and Technology, 1986
The isothermal thermogravimetric analysis of coal has been carried out by changing the oxygen concentration of the heating atmosphere at the temperature range of 400, 450, 500 and 600°C. The effect of oxygen concentrations of 1 - 50% of the flow gas is discussed based on the weight loss curves and the IR spectra.
Tetsuya Nishimoto   +2 more
openaire   +2 more sources

Susceptibility of coal to spontaneous combustion verified by modified adiabatic method under conditions of Ostrava-Karvina Coalfield, Czech Republic [PDF]

open access: yes, 2013
The susceptibility of coal to spontaneous combustion is a physical–chemical property of coal that can be determined by a laboratory test. A number of laboratory methods verifying the coal susceptibility to spontaneous combustion exist, e.g. the oxidation
Adamus, Alois, Zubíček, Václav
core   +1 more source

Механизм самовозгорания угля [PDF]

open access: yes, 2018
В работе проведено моделирование процесса зарождения очага эндогенного пожара и намечены пути мобильного определение вероятности его возникновения или наличия.
Ананьева, М. В.   +2 more
core   +2 more sources

Different Prevention Effects of Ventilation Dilution on Methane Accumulation at High Temperature Zone in Coal Mine Goafs

open access: yesEnergies, 2023
In coal mine goafs, spontaneous combustion of coal can result in methane accumulation, which raises the danger of methane explosion disasters. As an atmospheric control tool, ventilation is applied to ensure air quality for avoiding disasters in ...
Lin Li   +5 more
doaj   +1 more source

The evaluation of a risk degree for the process of a brown coal spontaneous ignition on dumps with using of modern numeric methods [PDF]

open access: yes, 2018
The article is a summary of information about evaluation of a risk degree for a brown coal spontaneous ignition which is realized on the base of a database analysis of information about the development of stative quantities and desorbated gases in the ...
Blata, Jan   +4 more
core   +1 more source

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