Results 51 to 60 of about 215 (139)

Key technologies for low-carbon modern coal-based energy

open access: yesMeitan xuebao
Coal energy has made a significant contribution to the development of human industrialization, but coal energy is faced with the major problem of high carbon emissions. Modern coal-based energy is a new path to crack the contradiction between coal energy
Shirong GE   +4 more
doaj   +1 more source

Modeling of temperatures by using the algorithm of queue burning movement in the UCG Process [PDF]

open access: yesActa Montanistica Slovaca, 2015
In this contribution, a proposal of the system for indirect measurement temperatures in the underground coal gasification (UCG) process is presented.
Milan Durdán, Karol Kostúr
doaj   +1 more source

An analysis of new generation coal gasification projects

open access: yesInternational Journal of Mining Science and Technology, 2012
The global trends of increasing oil and gas costs have compelled coal possessing countries to start long term underground coal gasification (UCG) projects.
Efim Vulfovich Kreynin
doaj  

Thermo-Mechanical Simulations of Rock Behavior in Underground Coal Gasification Show Negligible Impact of Temperature-Dependent Parameters on Permeability Changes

open access: yesEnergies, 2015
A coupled thermo-mechanical model has been developed to assess permeability changes in the vicinity of an underground coal gasification (UCG) reactor resulting from excavation and thermo-mechanical effects.
Christopher Otto, Thomas Kempka
doaj   +1 more source

Synthesis Gas Composition Prediction for Underground Coal Gasification Using a Thermochemical Equilibrium Modeling Approach

open access: yesEnergies, 2020
Underground coal gasification (UCG) is an in situ conversion technique that enables the production of high-calorific synthesis gas from resources that are economically not minable by conventional methods. A broad range of end-use options is available for
Christopher Otto, Thomas Kempka
doaj   +1 more source

Modelling of Gas Flow in the Underground Coal Gasification Process and its Interactions with the Rock Environment

open access: yesJournal of Sustainable Mining, 2013
The main goal of this study was the analysis of gas flow in the underground coal gasification process and interactions with the surrounding rock mass. The article is a discussion of the assumptions for the geometric model and for the numerical method for
Tomasz Janoszek   +4 more
doaj   +1 more source

Underground coal gasification (UCG): A new trend of supply-side economics of fossil fuels

open access: yesNatural Gas Industry B, 2016
China has a huge demand for energy. Under the present energy structure of rich coal, lean oil, less gas, limited and low-rising rate renewable energy, discussion focus is now on the high-efficient mining of coal as well as its clean-and-low-carbon use.
openaire   +3 more sources

The monitoring and control of underground coal gasification in laboratory conditions [PDF]

open access: yesActa Montanistica Slovaca, 2008
A number of coal gasification technologies are currently available or under various stages of development. One technology “Underground coal gasification (UCG)” is receiving renewed interest around the world.
Ján Kačúr, Karol Kostúr
doaj  

Rock massif observation from underground coal gasification point of view [PDF]

open access: yesMetalurgija, 2009
The Underground coal gasification (UCG) of the coal seams is determined by suitable geological structure of the area. The assumption of the qualitative changes of the rock massif can be also enabled by application of geophysical methods (electric ...
T. Sasvári, J. Durove, B. Pandula
doaj  

Analysis of Risk Factors for Underground Coal Gasification

open access: yesManagement Systems in Production Engineering, 2019
The purpose of this article is to determine the environmental impacts of underground gasification on the population and to analyze the risk of underground coal gasification (UCG) activities using selected risk assessment methods.
Škvareková Erika   +3 more
doaj   +1 more source

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