Effect of an immersed tube-bank in a gas fluidized bed

Wahab Mojtahedi

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Bubble properties in a three-dimensional, freely-bubbling, gas fluidized bed are reported in the presence and the absence of a horizontal tube-bundle.
The tube-bundle is a staggered-array of tubes 1.9cm in diameter, with a pitch: diameter ratio of 3.5. Two different gas distributor plates, one made from sintered metal and one a simple perforated plate, were used and results compared under identical fluidizing conditions. Bubble rise velocities, bubble size and frequency distributions are measured and reported.
Greater bubble rise velocities are recorded in a bed free of solid obstacles with both distributor plates. Bubble size distributions do not seem to be greatly affected by the presence of a horizontal tube-bank in the bed.
Original languageEnglish
Pages (from-to)1095-1101
JournalInternational Journal of Heat and Mass Transfer
Volume30
Issue number6
DOIs
Publication statusPublished - 1987
MoE publication typeA1 Journal article-refereed

Fingerprint

Fluidized beds
beds
bubbles
Gases
tubes
Perforated plates
Fluidization
distributors
gases
Metals
bundles
perforated plates
frequency distribution
metals

Keywords

  • fluidized beds

Cite this

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title = "Effect of an immersed tube-bank in a gas fluidized bed",
abstract = "Bubble properties in a three-dimensional, freely-bubbling, gas fluidized bed are reported in the presence and the absence of a horizontal tube-bundle. The tube-bundle is a staggered-array of tubes 1.9cm in diameter, with a pitch: diameter ratio of 3.5. Two different gas distributor plates, one made from sintered metal and one a simple perforated plate, were used and results compared under identical fluidizing conditions. Bubble rise velocities, bubble size and frequency distributions are measured and reported. Greater bubble rise velocities are recorded in a bed free of solid obstacles with both distributor plates. Bubble size distributions do not seem to be greatly affected by the presence of a horizontal tube-bank in the bed.",
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pages = "1095--1101",
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Effect of an immersed tube-bank in a gas fluidized bed. / Mojtahedi, Wahab.

In: International Journal of Heat and Mass Transfer, Vol. 30, No. 6, 1987, p. 1095-1101.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Effect of an immersed tube-bank in a gas fluidized bed

AU - Mojtahedi, Wahab

PY - 1987

Y1 - 1987

N2 - Bubble properties in a three-dimensional, freely-bubbling, gas fluidized bed are reported in the presence and the absence of a horizontal tube-bundle. The tube-bundle is a staggered-array of tubes 1.9cm in diameter, with a pitch: diameter ratio of 3.5. Two different gas distributor plates, one made from sintered metal and one a simple perforated plate, were used and results compared under identical fluidizing conditions. Bubble rise velocities, bubble size and frequency distributions are measured and reported. Greater bubble rise velocities are recorded in a bed free of solid obstacles with both distributor plates. Bubble size distributions do not seem to be greatly affected by the presence of a horizontal tube-bank in the bed.

AB - Bubble properties in a three-dimensional, freely-bubbling, gas fluidized bed are reported in the presence and the absence of a horizontal tube-bundle. The tube-bundle is a staggered-array of tubes 1.9cm in diameter, with a pitch: diameter ratio of 3.5. Two different gas distributor plates, one made from sintered metal and one a simple perforated plate, were used and results compared under identical fluidizing conditions. Bubble rise velocities, bubble size and frequency distributions are measured and reported. Greater bubble rise velocities are recorded in a bed free of solid obstacles with both distributor plates. Bubble size distributions do not seem to be greatly affected by the presence of a horizontal tube-bank in the bed.

KW - fluidized beds

U2 - 10.1016/0017-9310(87)90039-1

DO - 10.1016/0017-9310(87)90039-1

M3 - Article

VL - 30

SP - 1095

EP - 1101

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

SN - 0017-9310

IS - 6

ER -