Dynamic Characteristics of Bed Collapse in Three-phase Fluidized Beds

Dong Hyun Lee, Sung Soo Park, Won Woong Choi, Duk Joon Kim, Ji Heung Kim, Young Kwan Lee, Sang Jun Sim, Sang Done Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Transient behavior of the bed collapse after shut-off the gas supply into a three-phase fluidized bed was determined. Experiments were carried out in a 210-mm diameter half-tube acrylic column having a 1.8 m-high test section. The polymer beads (dp=3.2 mm, ρs=1,280kg/m3) were fluidized by cocurrent flow of deionized water and air. The transient behavior of the bed collapse after cut-off the gas supply to the bed was monitored by a video camera (30 frames/s). The dense bed surface height was measured from the image of videotape. At lower liquid velocity, the dense bed surface increases with the elapsed time and then reaches a bed height, whereas at higher liquid velocity the dense bed surface increases sharply with the elapsed time, then decreases and reaches the bed height corresponding to the liquid-solid fluidized beds (water-polymer beads).

Original languageEnglish
Pages (from-to)1166-1169
Number of pages4
JournalKorean Journal of Chemical Engineering
Volume20
Issue number6
Publication statusPublished - 2003 Nov 1
Externally publishedYes

Fingerprint

Fluidized beds
Polymers
Water
Gas supply
Liquids
Deionized water
Video cameras
Acrylics
Air

Keywords

  • Bed Collapse
  • Dense Bed Height
  • Dynamic Characteristics
  • Three-Phase Fluidized Beds

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Lee, D. H., Park, S. S., Choi, W. W., Kim, D. J., Kim, J. H., Lee, Y. K., ... Kim, S. D. (2003). Dynamic Characteristics of Bed Collapse in Three-phase Fluidized Beds. Korean Journal of Chemical Engineering, 20(6), 1166-1169.

Dynamic Characteristics of Bed Collapse in Three-phase Fluidized Beds. / Lee, Dong Hyun; Park, Sung Soo; Choi, Won Woong; Kim, Duk Joon; Kim, Ji Heung; Lee, Young Kwan; Sim, Sang Jun; Kim, Sang Done.

In: Korean Journal of Chemical Engineering, Vol. 20, No. 6, 01.11.2003, p. 1166-1169.

Research output: Contribution to journalArticle

Lee, DH, Park, SS, Choi, WW, Kim, DJ, Kim, JH, Lee, YK, Sim, SJ & Kim, SD 2003, 'Dynamic Characteristics of Bed Collapse in Three-phase Fluidized Beds', Korean Journal of Chemical Engineering, vol. 20, no. 6, pp. 1166-1169.
Lee DH, Park SS, Choi WW, Kim DJ, Kim JH, Lee YK et al. Dynamic Characteristics of Bed Collapse in Three-phase Fluidized Beds. Korean Journal of Chemical Engineering. 2003 Nov 1;20(6):1166-1169.
Lee, Dong Hyun ; Park, Sung Soo ; Choi, Won Woong ; Kim, Duk Joon ; Kim, Ji Heung ; Lee, Young Kwan ; Sim, Sang Jun ; Kim, Sang Done. / Dynamic Characteristics of Bed Collapse in Three-phase Fluidized Beds. In: Korean Journal of Chemical Engineering. 2003 ; Vol. 20, No. 6. pp. 1166-1169.
@article{6afac363301e4d6eb0d9c43181acfd02,
title = "Dynamic Characteristics of Bed Collapse in Three-phase Fluidized Beds",
abstract = "Transient behavior of the bed collapse after shut-off the gas supply into a three-phase fluidized bed was determined. Experiments were carried out in a 210-mm diameter half-tube acrylic column having a 1.8 m-high test section. The polymer beads (dp=3.2 mm, ρs=1,280kg/m3) were fluidized by cocurrent flow of deionized water and air. The transient behavior of the bed collapse after cut-off the gas supply to the bed was monitored by a video camera (30 frames/s). The dense bed surface height was measured from the image of videotape. At lower liquid velocity, the dense bed surface increases with the elapsed time and then reaches a bed height, whereas at higher liquid velocity the dense bed surface increases sharply with the elapsed time, then decreases and reaches the bed height corresponding to the liquid-solid fluidized beds (water-polymer beads).",
keywords = "Bed Collapse, Dense Bed Height, Dynamic Characteristics, Three-Phase Fluidized Beds",
author = "Lee, {Dong Hyun} and Park, {Sung Soo} and Choi, {Won Woong} and Kim, {Duk Joon} and Kim, {Ji Heung} and Lee, {Young Kwan} and Sim, {Sang Jun} and Kim, {Sang Done}",
year = "2003",
month = "11",
day = "1",
language = "English",
volume = "20",
pages = "1166--1169",
journal = "Korean Journal of Chemical Engineering",
issn = "0256-1115",
publisher = "Springer New York",
number = "6",

}

TY - JOUR

T1 - Dynamic Characteristics of Bed Collapse in Three-phase Fluidized Beds

AU - Lee, Dong Hyun

AU - Park, Sung Soo

AU - Choi, Won Woong

AU - Kim, Duk Joon

AU - Kim, Ji Heung

AU - Lee, Young Kwan

AU - Sim, Sang Jun

AU - Kim, Sang Done

PY - 2003/11/1

Y1 - 2003/11/1

N2 - Transient behavior of the bed collapse after shut-off the gas supply into a three-phase fluidized bed was determined. Experiments were carried out in a 210-mm diameter half-tube acrylic column having a 1.8 m-high test section. The polymer beads (dp=3.2 mm, ρs=1,280kg/m3) were fluidized by cocurrent flow of deionized water and air. The transient behavior of the bed collapse after cut-off the gas supply to the bed was monitored by a video camera (30 frames/s). The dense bed surface height was measured from the image of videotape. At lower liquid velocity, the dense bed surface increases with the elapsed time and then reaches a bed height, whereas at higher liquid velocity the dense bed surface increases sharply with the elapsed time, then decreases and reaches the bed height corresponding to the liquid-solid fluidized beds (water-polymer beads).

AB - Transient behavior of the bed collapse after shut-off the gas supply into a three-phase fluidized bed was determined. Experiments were carried out in a 210-mm diameter half-tube acrylic column having a 1.8 m-high test section. The polymer beads (dp=3.2 mm, ρs=1,280kg/m3) were fluidized by cocurrent flow of deionized water and air. The transient behavior of the bed collapse after cut-off the gas supply to the bed was monitored by a video camera (30 frames/s). The dense bed surface height was measured from the image of videotape. At lower liquid velocity, the dense bed surface increases with the elapsed time and then reaches a bed height, whereas at higher liquid velocity the dense bed surface increases sharply with the elapsed time, then decreases and reaches the bed height corresponding to the liquid-solid fluidized beds (water-polymer beads).

KW - Bed Collapse

KW - Dense Bed Height

KW - Dynamic Characteristics

KW - Three-Phase Fluidized Beds

UR - http://www.scopus.com/inward/record.url?scp=0442295430&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0442295430&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0442295430

VL - 20

SP - 1166

EP - 1169

JO - Korean Journal of Chemical Engineering

JF - Korean Journal of Chemical Engineering

SN - 0256-1115

IS - 6

ER -