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Statements

Subject Item
n2:RIV%2F61988987%3A17310%2F09%3AA1000WMI%21RIV10-MSM-17310___
rdf:type
skos:Concept n13:Vysledek
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:A1000WMI!RIV10-MSM-17310___
n3:aktivita
n14:S n14:P
n3:aktivity
P(GA105/06/0630), S
n3:dodaniDat
n6:2010
n3:domaciTvurceVysledku
n11:8786097
n3:druhVysledku
n10:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n21:predkladatel
n3:idSjednocenehoVysledku
326885
n3:idVysledku
RIV/61988987:17310/09:A1000WMI
n3:jazykVysledku
n5:eng
n3:klicovaSlova
spontaneous heating; coal; gob area; modelling; Fluent
n3:klicoveSlovo
n4:spontaneous%20heating n4:coal n4:Fluent n4:modelling n4:gob%20area
n3:kontrolniKodProRIV
[9479597C8A37]
n3:mistoKonaniAkce
New Delhi, Indie
n3:mistoVydani
New Delhi
n3:nazevZdroje
Mine Ventilation
n3:obor
n8:CF
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:projekt
n17:GA105%2F06%2F0630
n3:rokUplatneniVysledku
n6:2009
n3:tvurceVysledku
Taraba, Boleslav Taufer, Antonín Michalec, Zdeněk
n3:typAkce
n18:WRD
n3:zahajeniAkce
2009-11-10+01:00
s:numberOfPages
1058
n15:hasPublisher
Oxford and IBH Publishing Co. Pvt. Ltd.
n12:isbn
978-81-204-1749-6
n20:organizacniJednotka
17310