Predicting Freeboard Heat Transfer by Using Empirical Correlations in High Temperature Fluidized Beds (23)

dc.authorscopusid 6602672325
dc.contributor.author Biyikli, S.
dc.date.accessioned 2024-05-25T11:18:02Z
dc.date.available 2024-05-25T11:18:02Z
dc.date.issued 2015
dc.department Okan University en_US
dc.department-temp [Biyikli, S.] Okan Univ, Istanbul, Turkey en_US
dc.description.abstract This article is suggesting some empirical correlations to calculate the freeboard entrainment heights and the average heat transfer coefficients for a horizontal tube over the freeboard region of high temperature fluidized bed combustors. The correlations are tested against some published experimental measurements for silica sand 465 mu m and limestone 1,400 mu m diameters in fluidized beds for temperatures up to 750 degrees C. The height of a fluidized bed over the static bed is defined as the entrainment height; first a correlation is used to calculate the entrainment heights in order to determine the extent of the freeboard region at different bed temperatures and gas velocities. The heat transfer occurs by radiation, gas convection, and particle contact mechanisms in a high temperature fluidized bed combustor. Contribution of these heat transfer mechanisms to the overall heat transfer is described in detail over the freeboard region of fluidized beds by using empirical correlations. These correlations can be used to calculate the heat transfer characteristics in the design of fluidized bed combustors. The relative contribution of radiation increases with increasing freeboard elevation and approaches a constant fraction of the total average heat transfer. en_US
dc.identifier.citationcount 1
dc.identifier.doi 10.1080/15435075.2013.777904
dc.identifier.endpage 308 en_US
dc.identifier.issn 1543-5075
dc.identifier.issn 1543-5083
dc.identifier.issue 4 en_US
dc.identifier.scopus 2-s2.0-84912138574
dc.identifier.scopusquality Q2
dc.identifier.startpage 303 en_US
dc.identifier.uri https://doi.org/10.1080/15435075.2013.777904
dc.identifier.uri https://hdl.handle.net/20.500.14517/283
dc.identifier.volume 12 en_US
dc.identifier.wos WOS:000350996500003
dc.identifier.wosquality Q2
dc.language.iso en
dc.publisher Taylor & Francis inc en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.scopus.citedbyCount 1
dc.subject Fluidized bed heat transfer en_US
dc.subject High temperature fluidized beds en_US
dc.subject Fluidized bed combustors en_US
dc.subject Freeboard heat transfer correlations en_US
dc.subject Predicting fluidized bed heat transfer en_US
dc.title Predicting Freeboard Heat Transfer by Using Empirical Correlations in High Temperature Fluidized Beds (23) en_US
dc.type Article en_US
dc.wos.citedbyCount 1

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