Horizontal gas mixing in rectangular fluidized bed:A novel method for gas dispersion coefficients in various conditions and distributor designs

Asheesh Nautiyal; Chien-Song Chyang; Pin-Wei Li; Hsin-Yung Hou

doi:10.1016/j.cjche.2016.12.009

Your Location：

Home >

Browse articles >

Horizontal gas mixing in rectangular fluidized bed:A novel method for gas dispersion coefficients in various conditions and distributor designs

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- Horizontal gas mixing in rectangular fluidized bed:A novel method for gas dispersion coefficients in various conditions and distributor designs
- Chinese Journal of Chemical Engineering Vol. 25, Issue 7, Pages: 848-861(2017)
- Affiliations：
  
  Department of Chemical Engineering, Chung Yuan Christian University, Taoyuan,Taiwan,China,320
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.12.009
  CLC：
- Published：2017
- Accepted：
Scan QR Code
Asheesh Nautiyal, Chien-Song Chyang, Pin-Wei Li, Hsin-Yung Hou. Horizontal gas mixing in rectangular fluidized bed:A novel method for gas dispersion coefficients in various conditions and distributor designs[J]. , 2017, 25(7): 848-861.
DOI：

Asheesh Nautiyal, Chien-Song Chyang, Pin-Wei Li, Hsin-Yung Hou. Horizontal gas mixing in rectangular fluidized bed:A novel method for gas dispersion coefficients in various conditions and distributor designs[J]. , 2017, 25(7): 848-861. DOI： 10.1016/j.cjche.2016.12.009.

摘要

Abstract

In a rectangular fluidized bed combustor

the tracer gas is injected continuously into the bed from a point source at the center of the distributor plate. In this study

a general governing equation is formulated for tracer gas dispersion in the bed. An analytical solution is derived to estimate the dispersion coefficients

and

in a horizontal plane. The concentration profiles at different sampling heights with various gas velocities are plotted. Subsequently

to estimate the dispersion coefficients

surface fitting of the obtained analytical solution to the experimental data is performed. The dispersion coefficients obtained from this model are compared with those of a conventional model. Additionally

the effect of walls

bed height and gas injection rate on the dispersion coefficients in a horizontal plane is investigated

and the effect of distributor design on the dispersion coefficients in a horizontal plane is investigated with different tracer positions. It is found that

and

are nearly equivalent at a lower tracer gas r

atio of the injected gas to the total gas flow rate. It is also demonstrated that the effect of bed height on

is minor. This model is also able to estimate the dispersion coefficients in the case of a multihorizontal nozzle distributor.

关键词

Keywords

references

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Recovery rubidium chloride and cyclic utilization of hexacyanoferrate(II) ion from hexacyanoferrate-internediate solutions via solvent extraction

Biochar as a structure-tunable stationary phase for column chromatographic fractionation of bio-oil

Synergistically coupling of vertically oriented Ru/Co co-doped MoS2 with interfacial engineering for efficient electrochemical hydrogen evolution

Dynamic behavior of a single bubble in cavity flow driven by a turbulent channel

Research on the electrostatic spray characteristics of ethanol/n-butanol blended fuels

Related Author

No data

Related Institution

No data

⁰