Modelling Spontaneous Combustion of Coal in the Gob Area of a Longwall Face

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F09%3AA1000WMI" target="_blank" >RIV/61988987:17310/09:A1000WMI - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Modelling Spontaneous Combustion of Coal in the Gob Area of a Longwall Face
Original language description
A commercial CFD (Computational Fluid Dynamics) software program, Fluent, was used to study spontaneous combustion processes of the coal left in the longwall mined-out (gob) area. A three-dimensional model of the gob with an advancing coal face has beendeveloped. For the model, typical behaviour of a bituminous coal exposed to oxygen, obtained from laboratory investigations, was incorporated. The longwall gob area was designed on the basis of the actual longwall face district. Main attention was paid to model the effect of grain size of the coal left in the mined-out area on the oxidation heat and evolution of gases. Numerical simulations confirmed the existence of an ?optimal? zone for intense development of the spontaneous heating process in the gobarea. This zone was found to shift towards the longwall face if the coal grain size in the gob decreases.
Czech name
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Czech description
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Project
<a href="/en/project/GA105%2F06%2F0630" target="_blank" >GA105/06/0630: Modelling the distribution of the coal oxidation heat in the heterogenous porous surroundings</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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