Three-Dimensional Spray Combustion Simulation in a Practical Boiler

• AOKI Hideyuki

• TANNO Shoji

• MIURA Takatoshi

• OHNISHI Satoshi

抄録

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.

収録刊行物

• JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties

  JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties 35 (3), 428-434, 1992

  一般社団法人 日本機械学会

キーワード

• Pollutant
• Chemical Equilibrium
• Swirl
• Furnace
• Three-Dimensional Model
• NO Formation Model
• Soot Formation Model
• H<SUB>2</SUB>S Formation Model
• Petroleum Coke Combustion
• ASTM No. 6 Combustion

詳細情報

• CRID: 1390282680401809280
• NII論文ID: 110002492661
• NII書誌ID: AA10680596
• DOI: 10.1299/jsmeb1988.35.3_428
• ISSN: 09148817
• Web Site: https://www.jstage.jst.go.jp/article/jsmeb1988/35/3/35_3_428/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可