Three Dimensional Spray Combustion Simulation in a Practical Boiler

Hideyuki Aoki, Shyoji Tanno, Takatoshi Miura, Satoshi Ohnishi

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4 Citations (Scopus)


The three dimensional spray combustion simulation in a swirling fired type furnace (125MW) where a pulverized petroleum coke and an ASTM No. 6 heavy oil are fed from two opposite side walls has been presented. Predicted results are compared with measurements of exhausted NO concentration in a boiler with and without air introduced tangentially from the bottom of the furnace to convert from H2S to SO2 effectively. The predicted NO concentration in the exhausted gas is in good agreement with experimental results, and both of them show that the NO concentration in the exhausted gas increases with a proportion to tangential air flow rate ratio to the total secondary air flow rate, however, the soot concentration in the exhausted gas decreases. The prediction also shows that the tangential air introduction will be effective for oxidation of H2S which is expected to sulfur corrosion.

Original languageEnglish
Pages (from-to)2152-2158
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Issue number538
Publication statusPublished - 1991


  • ASTM No. 6 oil combustion
  • chemical equilibrium
  • furnace
  • HS formation model
  • NO formation model
  • petroleum coke combustion
  • Pollutant
  • soot formation model
  • swirl
  • three dimensional model


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