Aerodynamics and coal - Flame modelling in the burning zone of cement rotary kilns, part 1 [Die aerodynamik der kohlenstaub-feuerung - Ein flammenmodell für die brennzone von zementdrehöfen, teil 1]

Kolyfetis, E; Markatos, NC

dc.contributor.author	Kolyfetis, E	en
dc.contributor.author	Markatos, NC	en
dc.date.accessioned	2014-03-01T01:11:39Z
dc.date.available	2014-03-01T01:11:39Z
dc.date.issued	1996	en
dc.identifier.issn	09490205	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11763
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0029771335&partnerID=40&md5=230bdb9eb03b6055baa12cbc3c758a43	en
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-6144263166&partnerID=40&md5=e18a03ee472ec8c6c2e8a7d99602b66f	en
dc.subject.other	Aerodynamics	en
dc.subject.other	Coal	en
dc.subject.other	Combustion	en
dc.subject.other	Correlation methods	en
dc.subject.other	Heat transfer	en
dc.subject.other	Mathematical models	en
dc.subject.other	Mathematical techniques	en
dc.subject.other	Performance	en
dc.subject.other	Rotary kilns	en
dc.subject.other	Burning zone	en
dc.subject.other	Cement rotary kilns	en
dc.subject.other	Finite domain method	en
dc.subject.other	Flame modelling	en
dc.subject.other	Flame research	en
dc.title	Aerodynamics and coal - Flame modelling in the burning zone of cement rotary kilns, part 1 [Die aerodynamik der kohlenstaub-feuerung - Ein flammenmodell für die brennzone von zementdrehöfen, teil 1]	en
heal.type	journalArticle	en
heal.publicationDate	1996	en
heal.abstract	A mathematical model is developed for the prediction of flow, combustion and heat transfer in a pulverised-fuel-fired rotary kiln. The mathematical formulation of this two-phase problem applies the eulerian conservation equations for the gaseous earner phase as well as for the coal particles. A finite-domain method is used for the numerical solution of these equations. Several auxiliary mathematical models describing the various physical phenomena occurring in the rotary kiln, such as coal combustion, radiation and interphase transport are selected according to their performance. The predictions obtained by the present model are compared with experimental data measured on a rotary kiln in operation at a plant of ""Heracles"" General Cement Company. The correlations between measurements and predictions are examined and discussed. Finally the computed flame length is compared with empirical correlations found usually in the literature. It is concluded that the proposed type of modelling leads to valuable results, that may help in a better understanding of the complex physico-chemical phenomena occurring in rotary kilns, with a view to optimize their performance and energy consumption.	en
heal.journalName	ZKG International	en
dc.identifier.volume	49	en
dc.identifier.issue	1	en
dc.identifier.spage	24	en
dc.identifier.epage	35	en