Results 21 to 30 of about 714 (185)

Development of a multi-field coupled numerical simulation program for underground coal gasification and multi-field evolution laws

open access: yesMeitan 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

Deployment of Underground Coal Gasification in India [PDF]

open access: yesCurrent Science, 2017
Globally, the sheen of coal-based energy production is slowly wearing, with few exceptions of developing novel technologies that aid in coal gasification and gas clean-up. Underground coal gasification (UCG) is one such tool that can be used for extracting energy contained in otherwise inaccessible reserves.
Singan, Akshay, Ranade, Vivek V.
openaire   +1 more source

MODELING OF MATERIAL BALANCE FROM THE EXPERIMENTAL UCG

open access: yesActa Polytechnica, 2020
The underground coal gasification is a continually evolving technology, which converts coal to calorific gas. There are many important parameters in this technology, which are difficult to measure.
Milan Durdán   +4 more
doaj   +1 more source

Characteristics of Geological Anomalies Shown on Seismic Time Sections

open access: yesCT Lilun yu yingyong yanjiu
With the rapid development of three-dimensional (3D) seismic exploration technology in recent years, its application has demonstrated significant advantages in interpreting the form and structure of underground coal seams, particularly in identifying ...
Xiaobing GENG
doaj   +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

Nonsilting transport characteristics of coal slurry in a deep underground fluidization conveying pipeline under the action of a guide vane swirler

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 2, Page 539-555, June 2026.
Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao   +5 more
wiley   +1 more source

An Overview of the Chinese UCG Program

open access: yesData Science Journal, 2007
Coal is the dominant source of energy in China, but about 50% of the coal resource is left underground unmined. Because of this, the "long-tunnel, large section, two-stage" Underground Coal Gasification (UCG) technology has been put forward, and the UCG ...
Yulan Li, Xinxing Liang, Jie Liang
doaj   +1 more source

Water Consumption in Hydrogen Production Through Electrolysis: Overview, State‐of‐the‐Art, and Future Trends

open access: yesWIREs Energy and Environment, Volume 15, Issue 2, June 2026.
Commercial‐scale “green” hydrogen projects use renewable electricity to drive electrolysis—the process of splitting water into hydrogen and oxygen. Producing green hydrogen requires water not only for the electrolysis reaction but also for cooling the electrolyzers, which release waste heat.
Antonio Santos Sánchez   +6 more
wiley   +1 more source

Multifield evolution characteristics of underground coal gasification under dynamic evolution of combustion zone

open access: yesMeitan xuebao
As a comprehensive utilization technology of clean coal, underground coal gasification has become a strategic direction of innovation in harmless coal mining technology under the background of dual carbon.
Dawei YIN   +5 more
doaj   +1 more source

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

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