Indirect thermal drying of lignite: Design aspects of a rotary dryer

Hatzilyberis, KS; Androutsopoulos, GP; Salmas, CE

dc.contributor.author	Hatzilyberis, KS	en
dc.contributor.author	Androutsopoulos, GP	en
dc.contributor.author	Salmas, CE	en
dc.date.accessioned	2014-03-01T01:15:39Z
dc.date.available	2014-03-01T01:15:39Z
dc.date.issued	2000	en
dc.identifier.issn	0737-3937	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13648
dc.subject	allothermal	en
dc.subject	rotary drum	en
dc.subject	moisture conversion	en
dc.subject	drying kinetics	en
dc.subject	heat transfer coefficient	en
dc.subject	indirect heat	en
dc.subject	gasification plant	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	PARTICLES	en
dc.subject.other	FLOW	en
dc.subject.other	RTD	en
dc.title	Indirect thermal drying of lignite: Design aspects of a rotary dryer	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/07373930008917824	en
heal.identifier.secondary	http://dx.doi.org/10.1080/07373930008917824	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	An investigation of the thermal drying of lignite has been carried out, by using an indirect heat pilot rotary drum. The process aims at the production of dry lignite and clean steam as part of a gasification procedure. Both flighted and bare drum modes have been employed. Temperature profiles along the dryer length, the amount of evaporation (moisture conversion) and the solids residence time distribution (RTD) were measured. A non-isothermal model was tested under three different regimes of solids flow. Model integration, by taking account of experimental amount of evaporation at dryer exit and temperature profiles along the dryer length, has been utilized in the validation of drying kinetics and heat transfer correlations. Model predictions compare satisfactorily with the operating data of an indirect heat industrial lignite dryer. Overall heat transfer coefficients of the pilot rotary dryer were found to agree well with those reported for direct heat dryers.	en
heal.publisher	MARCEL DEKKER INC	en
heal.journalName	DRYING TECHNOLOGY	en
dc.identifier.doi	10.1080/07373930008917824	en
dc.identifier.isi	ISI:000165253900004	en
dc.identifier.volume	18	en
dc.identifier.issue	9	en
dc.identifier.spage	2009	en
dc.identifier.epage	2049	en