Meitan xuebao, 2023 A numerical simulation procedure and method for underground coal gasification under the action of multi-field coupling has been developed, and the multi-field coupled thermal-force-chemical-displacement calculations are carried out simultaneously based ...
Qinghe ZHANG, Xiaorui WANG, Liang YUAN
doaj +1 more source
Journal of Sustainable Mining, 2013 In this article the characteristics of the criteria of borehole underground coal gasification for thin coal seams are defined. The thermal and material balance calculations for coal seam gasification processes are also explained. The construction, method
Volodymyr S. Falshtynskyi +3 more
doaj +1 more source
CFD Simulation of Temperature Variation in Carboniferous Rock Strata During UCG
Journal of Sustainable Mining, 2013 The numerical simulation was based on the computational fluid dynamics formalism in order to identify the change of temperature in rock strata during underground coal gasification (UCG).
Tomasz Janoszek +2 more
doaj +1 more source
Electricity-gas integrated energy system optimal operation in typical scenario of coal district considering hydrogen heavy trucks [PDF]
arXiv, 2021 The coal industry contributes significantly to the social economy, but the emission of greenhouse gases puts huge pressure on the environment in the process of mining, transportation, and power generation. In the integrated energy system (IES), the current research about the power-to-gas (P2G) technology mainly focuses on the injection of hydrogen ...
arxiv
The Underground Coal Gasification Process in Laboratory Conditions: An Experimental Study
Energies, 2023 The underground coal gasification (UCG) process represents a modern and effective coal mining technology that enables coal energy extraction through thermic decomposition.
M. Laciak +3 more
semanticscholar +1 more source
Automatic Identification of Coal and Rock/Gangue Based on DenseNet and Gaussian Process [PDF]
arXiv, 2022 To improve the purity of coal and prevent damage to the coal mining machine, it is necessary to identify coal and rock in underground coal mines. At the same time, the mined coal needs to be purified to remove rock and gangue. These two procedures are manually operated by workers in most coal mines.
arxiv
Study of Methods and Development of Technological Scheme for Heat Removal from Rock Waste Dump [PDF]
, 2017 The aim of this paper is to study the methods and develop technological scheme for thermal energy removal from coal mine rock waste dumps. The prospects of renewable energy sources development in Ukraine are analyzed.
Saik, Pavlo
core +1 more source
Enhanced Coalbed Methane Extraction by Geothermal Stimulation in Deep Coal Mines: An Appraisal [PDF]
arXiv, 2021 Coalbed methane embedded in coal seams, is an unconventional energy resource as well as a hazardous gas existing in mining industries, which attracts lots of global attention. As the largest coal producer, the mining industry in China had to deal with many hazards induced by methane for decades.
arxiv
A high-resolution gridded inventory of coal mine methane emissions for India and Australia [PDF]
arXiv, 2021 Coal mines are globally an important source of methane and also one of the largest point sources of methane. We present a high-resolution 0.1deg x 0.1deg bottom-up gridded emission inventory for methane emissions from coal mines in India and Australia, which are among the top five coal-producing countries in 2018.
arxiv
Methane Emissions from Super-emitting Coal Mines in Australia quantified using TROPOMI Satellite Observations [PDF]
arXiv, 2021 Two years of satellite observations were used to quantify methane emission from coal mines in Queensland, the largest coal-producing state in Australia. The six analyzed surface and underground coal mines are estimated to emit 570+/-98 Gg a-1 in 2018-2019.
arxiv