Three-dimensional spray combustion simulation in a practical boiler

Hideyuki Aoki, Shoji Tanno, Takatoshi Miura, Satoshi Ohnishi

研究成果: Article査読

10 被引用数 (Scopus)


A three-dimensional computer model of a swirling fired-type furnace in which pulverized petroleum coke and ASTM No. 6 heavy oil are fed from two opposite side walls is presented. The predicted results are compared with measurements of exhaust NO concentration in an operating 125 MW (e) boiler with and without air introduced tangentially from the bottom of the furnace (below the lower burners) to convert H2S to SO2 effectively. Agreement between predicted and experimental data is quite satisfactory. Both show that the unburned ratio decreases with an increase in the fraction of the flow of tangential air to that of secondary air and with an increase of NO concentration. Our prediction also shows that when the tangential air is introduced from the bottom, a reduction in the H2S formation rate is successfully effected in low-grade high-sulfur-content fuels such as heavy oil and petroleum coke.

ジャーナルJSME International Journal, Series 2: Fluids Engineering, Heat Transfer, Power, Combustion, Thermophysical Properties
出版ステータスPublished - 1992

ASJC Scopus subject areas

  • 機械工学
  • 物理化学および理論化学
  • 流体および伝熱


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