Development of a Method for Determination of the Amount of Particles Reaching the Wall of a Coal Gasifier

Yosuke Harada, Takuya Yamashita, Tsuyoshi Yamamoto, Hideyuki Aoki, Takatoshi Miura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A method for determination of the amount of solid particles reaching the wall of a coal gasifier was developed in order to predict the adhesion phenomena of particles to the furnace wall. In this study, experimental measurements of the rate of arrival (adhesion) at the wall of particles flowing in a straight tube were compared with our numerical results. The experimental arrival rate could be represented numerically by analyzing the simplified two-fluid model. In this study, a system having a thermal gradient in the flow field near the wall was numerically analyzed using this simplified two-fluid model, and it was confirmed by comparing the calculated result with the result of Direct Numerical Simulation that the thermophoretic force increased the amount of solid particles reaching the wall.

Original languageEnglish
Pages (from-to)795-801
Number of pages7
Journalkagaku kogaku ronbunshu
Volume29
Issue number6
DOIs
Publication statusPublished - 2003 Nov

Keywords

  • Coal gasifier
  • Combustion
  • Deposition velocity
  • Numerical simulation

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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