MODELLING SPONTANEOUS COMBUSTION OF COAL IN THE GOB AREA OF A LONGWALL FACE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F09%3AA1100ZL8" target="_blank" >RIV/61988987:17310/09:A1100ZL8 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

MODELLING SPONTANEOUS COMBUSTION OF COAL IN THE GOB AREA OF A LONGWALL FACE

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

MODELLING SPONTANEOUS COMBUSTION OF COAL IN THE GOB AREA OF A LONGWALL FACE

Popis výsledku anglicky

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.

Druh

C - Kapitola v odborné knize

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA105%2F06%2F0630" target="_blank" >GA105/06/0630: Modelování distribuce tepla z oxidace uhlí v heterogenním porézním prostředí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Mine Ventilation (Ed. D.C.Panigrahi), volume 1

ISBN

978-1-57808-679-5

Počet stran výsledku

7

Strana od-do

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Počet stran knihy

1078

Název nakladatele

Oxford and IBH Publishing Co.

Místo vydání

New Delhi, Indie

Kód UT WoS kapitoly

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