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Heat transfer on tube bundles embedded vertically in liquid-fluidized beds

โœ Scribed by Kenichi Hashizume; Akira Shirai; Koichi Fukai; Akihiro Fukagawa

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
626 KB
Volume
38
Category
Article
ISSN
1099-2871

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โœฆ Synopsis

Abstract

Bed voidage was measured in liquidโ€fluidized beds having tube bundles embedded vertically in beds, and the heat transfer coefficient was measured on the outer surface of the tube. There were six kinds of test channels used, and a total of nine types of particles of glass and ceramics were tested. The measured bed voidage agreed well with those developed for inโ€column fluidization, when the hydraulic equivalent diameter was used. Measured heat transfer coefficients on the vertically embedded tube bundles were higher than those on the vertically embedded single tubes, the calculated values for the inโ€column fluidization, and the calculated values for the horizontally embedded tube bundles. Correlations for predicting the heat transfer coefficient were derived for the vertically embedded tube bundles and single tubes. ยฉ 2009 Wiley Periodicals, Inc. Heat Trans Asian Res; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20267

๐Ÿ“œ SIMILAR VOLUMES

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Heat transfer on tube bundles embedded horizontally in a liquid-fluidized bed
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Heat transfer on tube bundles embedded horizontally in a liquid-fluidized bed was investigated experimentally. In the experiment, a total of 5 kinds of tube bundles in an equilateral triangular staggered arrangement, including a single tube, was used. Tested particles were of glass and ceramics, and

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Heat transfer on tube bundles embedded horizontally in a liquid-fluidized bed: 2nd report: On tube bundles of fundamental layouts including in-line layouts
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## Abstract Heat transfer coefficients were measured on tube bundles of fundamental layouts including inโ€line layouts embedded horizontally in a liquidโ€fluidized bed. Tested tube layouts were single tubes, transverse single tube rows, longitudinal single tube rows, and inโ€line arranged tube bundles