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

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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


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