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Statements

Subject Item
n2:RIV%2F61988987%3A17310%2F09%3AA1100ZL8%21RIV11-GA0-17310___
rdf:type
n7:Vysledek skos:Concept
dcterms: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 been developed. 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 gob area. This zone was found to shift towards the longwall face if the coal grain size in the gob decreases. 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 been developed. 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 gob area. This zone was found to shift towards the longwall face if the coal grain size in the gob decreases.
dcterms:title
MODELLING SPONTANEOUS COMBUSTION OF COAL IN THE GOB AREA OF A LONGWALL FACE MODELLING SPONTANEOUS COMBUSTION OF COAL IN THE GOB AREA OF A LONGWALL FACE
skos:prefLabel
MODELLING SPONTANEOUS COMBUSTION OF COAL IN THE GOB AREA OF A LONGWALL FACE MODELLING SPONTANEOUS COMBUSTION OF COAL IN THE GOB AREA OF A LONGWALL FACE
skos:notation
RIV/61988987:17310/09:A1100ZL8!RIV11-GA0-17310___
n3:aktivita
n18:P
n3:aktivity
P(GA105/06/0630)
n3:dodaniDat
n4:2011
n3:domaciTvurceVysledku
n8:8786097
n3:druhVysledku
n10:C
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
326886
n3:idVysledku
RIV/61988987:17310/09:A1100ZL8
n3:jazykVysledku
n9:eng
n3:klicovaSlova
spontaneous heating; coal; gob area; modelling; Fluent
n3:klicoveSlovo
n5:Fluent n5:modelling n5:gob%20area n5:spontaneous%20heating n5:coal
n3:kontrolniKodProRIV
[9A992ED0AE72]
n3:mistoVydani
New Delhi, Indie
n3:nazevEdiceCisloSvazku
Mine Ventilation (Ed. D.C.Panigrahi), volume 1
n3:nazevZdroje
Mine Ventilation (Ed. D.C.Panigrahi), volume 1
n3:obor
n15:CF
n3:pocetDomacichTvurcuVysledku
1
n3:pocetStranKnihy
1078
n3:pocetTvurcuVysledku
3
n3:projekt
n20:GA105%2F06%2F0630
n3:rokUplatneniVysledku
n4:2009
n3:tvurceVysledku
Taraba, Boleslav Michalec, Zdeněk Taufer, Antonín
s:numberOfPages
7
n13:hasPublisher
Oxford and IBH Publishing Co.
n17:isbn
978-1-57808-679-5
n19:organizacniJednotka
17310