Results 61 to 70 of about 57,328 (310)

Mathematical model and methods for solving heat-transfer problem during underground coal gasification

open access: yesMining of Mineral Deposits, 2022
Purpose. A mathematical model development for heat transfer during underground coal gasification based on the transcendental equation solution by the Newton-Raphson method. Methods.
P. Saik, M. Berdnyk
semanticscholar   +1 more source

Experimental Studies of the Effect of Design and Technological Solutions on the Intensification of an Underground Coal Gasification Process

open access: yesEnergies, 2021
This paper represents the results of experimental studies of physical modeling of the underground coal gasification process in terms of implementation of design and technological solutions aimed at intensification of a gasification process of thin coal ...
Oleg Bazaluk   +5 more
doaj   +1 more source

A modern vision of simulation modelling in mining and near mining activity [PDF]

open access: yes, 2018
The paper represents the creation of the software simulation system, which reproduce the basic processes of mining and near production. It presents the consideration of such systems for both traditional and non-traditional
Cabana, Edgar   +12 more
core   +1 more source

Comparison of Tar Samples from Reaction Zone and Outlet in Ex-Situ Underground Coal Gasification Experiment

open access: yesEnergies, 2021
Tar remaining in the gasification cavity during underground coal gasification (UCG) is an important pollution source, while the reported studies only focus on the tar behavior at the outlet.
Lele Feng   +3 more
doaj   +1 more source

Technology, Institution, and Regional Growth: Evidence from Mineral Mining Industry in Industrializing Japan [PDF]

open access: yesarXiv, 2021
Coal extraction was an influential economic activity in interwar Japan. Initially, coal mines employed both males and females as the workforce in the pits. However, the innovation of labor-saving technologies and the renewal of traditional extraction methodology induced institutional change.
arxiv  

Using Mathematica software for coal gasification simulations – Selected kinetic model application

open access: yesJournal of Sustainable Mining, 2015
Coal gasification is recognized as a one of promising Clean Coal Technologies. As the process itself is complicated and technologically demanding, it is subject of many research.
Sebastian Iwaszenko
doaj   +1 more source

Surface Subsidence Modelling Induced by Formation of Cavities in Underground Coal Gasification

open access: yesApplied Sciences
Underground coal gasification (UCG) is an efficient method for the conversion of deep coal resources into energy. The scope of this work is to model the subsidence of four gasification cavities with a size of 30 m × 30 m × 15 m, separated by 15 m wide ...
Yuan Jiang   +4 more
semanticscholar   +1 more source

Groundwater monitoring during underground coal gasification [PDF]

open access: yesJournal of the Southern African Institute of Mining and Metallurgy, 2018
Underground coal gasification (UCG) is a fast-emerging, in situ mining technology that provides access to low-cost energy through the utilization of coal reserves that are currently not technically or economically exploitable by conventional mining methods.
van Dyk, J.C.   +3 more
openaire   +2 more sources

The Value Chain of Sustainable Dual Carbon Sodium Ion Capacitors

open access: yesBatteries &Supercaps, EarlyView.
Sodium‐ion capacitors (SICs) bridge the energy‐power gap between batteries and supercapacitors, offering sustainable and scalable energy storage solutions. This review provides a 360‐degree perspective on SIC technology, covering material choices, presodiation strategies, manufacturing challenges, applications and life cycle assessment to ensure ...
Roman Mysyk   +23 more
wiley   +1 more source

Achieving climate neutrality in coal mining regions through the underground coal gasification

open access: yesE3S Web of Conferences
Coal mining regions face significant challenges in transitioning towards climate neutrality due to their dependence on fossil fuel extraction. This research explores the potential of underground coal gasification (UCG) technology as a pathway towards ...
P. Saik   +4 more
semanticscholar   +1 more source

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