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4.048  Articles
1 of 406 pages  |  10  records  |  more records»
Grounded technological scheme of energetic module, based on the use of underground energy combustion or gasification of coal deposits.The main elements of the energetic module: 1) waste heat exchanger working levels; 2) channels that combine working level... see more

Today one of the main problem for areas of intense technological activities related to the production, processing and use of fossil fuels is management and environmental protection. With the current technology development difficult to achieve effective re... see more

Underground coal gasification (UCG) is a technological process, which converts solid coal into a gas in the underground, using injected gasification agents. In the UCG process, a lot of process variables can be measurable with common measuring devices, bu... see more

Underground coal gasification (UCG) proceeds generally in the presence of an ash layer on coal (or char) surface. The ash layer increases the mass transfer resistance of O2 to the gasification surface, which may become the limiting step of whole process. ... see more

To enhance the position estimation accuracy of an underground localization system for coal mine roadways, an algorithm based on the feature vector of received signals is presented in this paper. The algorithm includes three steps: the construction process... see more

The article is analyzed features of processes migration of natural radionuclides in the underground water at the liquidation of coal mines of North-Eastern Donbass on the example of mine "Proletarian" and Svitlichanskyi of water intake. It is revealed, th... see more

Currently, coal is the main natural energy carrier in Ukraine due to its limited resources of oil and natural gas. A promising method for extracting coal is underground gasification using thermochemical and mass-exchange processes. This study was aimed at... see more

The stability of underground openings is pivotal to sustainable safe mining in underground coal mines. To determine the stability and tunneling safety issues in 800-m-deep underground openings through large fault zones in argillaceous rocks in the Guqiao ... see more

In the underground coal gasification (UCG) process, cavity growth with crack extension inside the coal seam is an important phenomenon that directly influences gasification efficiency. An efficient and environmentally friendly UCG system also relies upon ... see more

1 of 406 pages  |  10  records  |  more records»