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Numerical simulation of gas-particle two-phase flow in corners tangential streams gasifier

  • University of Shanghai for Science and Technology
  • University of Missouri

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Numerical simulation of anti-rich/lean burner jet flow is carried out to simulate two forms of gas-solid two-phase jet fields. One is a single burners and its exit of certain areas gassolid two-phase jet field. Another one is gas-solid two-phase jet field in the single-layer combustion region. Predication of the particle dispersion in the burner jet is of great importance in industrial application and in the designing of coal burner with good performance. The objective of this study is to numerically investigate the particle dispersion mechanisms in the gas-solid two-phase jet from an anti-rich/lean burner. The detached-eddy-simulation (DES) approach is employed to study the turbulent flow in the fuel rich/lean separator and the gas-solid multiphase jet from the exit of an anti-rich/lean burner. The numerical results show that adding bias current of antirich/lean burner exit jet flow keeps anti-rich/lean of properties. Since the exit of boundary air speed is almost twice of primary air velocity, boundary air act on coal powder flow in acceleration and conveying, coal powder flow can keep boiler of inscribed circle position.

Original languageEnglish
Title of host publicationEnergy Systems Analysis, Thermodynamics and Sustainability; Combustion Science and Engineering; Nanoengineering for Energy
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages783-788
Number of pages6
EditionPARTS A AND B
ISBN (Print)9780791854907
DOIs
StatePublished - 2011
Externally publishedYes
EventASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 - Denver, CO, United States
Duration: 11 Nov 201117 Nov 2011

Publication series

NameASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
NumberPARTS A AND B
Volume4

Conference

ConferenceASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
Country/TerritoryUnited States
CityDenver, CO
Period11/11/1117/11/11

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