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dc.contributor.authorTaraba, Boleslav
dc.contributor.authorMichalec, Zdeněk
dc.contributor.authorMichalcová, Vladimíra
dc.contributor.authorBlejchař, Tomáš
dc.contributor.authorBojko, Marian
dc.contributor.authorKozubková, Milada
dc.date.accessioned2014-02-12T09:17:07Z
dc.date.available2014-02-12T09:17:07Z
dc.date.issued2014
dc.identifier.citationFuel. 2014, vol. 118, p. 107-112.cs
dc.identifier.issn0016-2361
dc.identifier.urihttp://hdl.handle.net/10084/101685
dc.description.abstractA commercial CFD software program, fluent, was used to study the effect of wind on the spontaneous heating process of a coal stockpile. A two-domain model was developed to simultaneously solve the governing equations of an open porous medium (coal stockpile domain) situated in a homogeneous atmosphere (wind flow domain). Simulations with air blowing from a fixed direction as well as real fluctuations of the airflow both in velocity and direction were performed. Numerical calculations confirmed the promoting role of wind on the dynamics of the development of spontaneous heating. Under the conditions of the simulations, three possible shifts of the hot spot in the stockpile were distinguished when coal undergoes the self-heating process: (1) Shift of the hot spot to the pile surface when spontaneous heating of coal is in progress. (2) Movement of the hot spot inwards the stockpile as the wind speed increases. (3) Transfer of the hot spot from the upper part of the stockpile to the lower part when the self-heating process progresses. Such movement was found for wind speeds ⩽3 m s−1 and clearly is mainly connected with the effect of buoyancy.cs
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofseriesFuelcs
dc.relation.urihttp://dx.doi.org/10.1016/j.fuel.2013.10.064cs
dc.rightsCopyright © 2013 Elsevier Ltd. All rights reserved.cs
dc.subjectcoal oxidationcs
dc.subjectspontaneous heatingcs
dc.subjectCFD modellingcs
dc.subjectcoal stockpilecs
dc.titleCFD simulations of the effect of wind on the spontaneous heating of coal stockpilescs
dc.typearticlecs
dc.identifier.doi10.1016/j.fuel.2013.10.064
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume118cs
dc.description.lastpage112cs
dc.description.firstpage107cs
dc.identifier.wos000329116600015


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