Aerodynamics and coal flame modelling in the burning zone of cement rotary kilns .1.

Kolyfetis, E; Markatos, NC

dc.contributor.author	Kolyfetis, E	en
dc.contributor.author	Markatos, NC	en
dc.date.accessioned	2014-03-01T01:45:02Z
dc.date.available	2014-03-01T01:45:02Z
dc.date.issued	1996	en
dc.identifier.issn	0722-4397	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24536
dc.subject.classification	Construction & Building Technology	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	TRANSIENT FLOW	en
dc.subject.other	PROPELLANTS	en
dc.subject.other	COMBUSTION	en
dc.title	Aerodynamics and coal flame modelling in the burning zone of cement rotary kilns .1.	en
heal.type	journalArticle	en
heal.language	English	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 carrier 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 occuring 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 physicochemical phenomena occuring in, rotary kilns, with a view to optimize their performance and energy consumption.	en
heal.publisher	BAUVERLAG GMBH	en
heal.journalName	ZKG INTERNATIONAL	en
dc.identifier.isi	ISI:A1996UD35800009	en
dc.identifier.volume	49	en
dc.identifier.issue	1	en
dc.identifier.spage	24	en
dc.identifier.epage	35	en