Three Dimensional Spray Combustion Simulation in a Practical Boiler

Hideyuki Aoki; Shyoji Tanno; Takatoshi Miura; Satoshi Ohnishi

doi:10.1299/kikaib.57.2152

Three Dimensional Spray Combustion Simulation in a Practical Boiler

Hideyuki Aoki, Shyoji Tanno, Takatoshi Miura, Satoshi Ohnishi

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	2152-2158
Number of pages	7
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	57
Issue number	538
DOIs	https://doi.org/10.1299/kikaib.57.2152
Publication status	Published - 1991 Jan 1
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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title = "Three Dimensional Spray Combustion Simulation in a Practical Boiler",

abstract = "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.",

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

author = "Hideyuki Aoki and Shyoji Tanno and Takatoshi Miura and Satoshi Ohnishi",

year = "1991",

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doi = "10.1299/kikaib.57.2152",

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TY - JOUR

T1 - Three Dimensional Spray Combustion Simulation in a Practical Boiler

AU - Aoki, Hideyuki

AU - Tanno, Shyoji

AU - Miura, Takatoshi

AU - Ohnishi, Satoshi

PY - 1991/1/1

Y1 - 1991/1/1

N2 - 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.

AB - 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.

KW - ASTM No. 6 oil combustion

KW - HS formation model

KW - NO formation model

KW - Pollutant

KW - chemical equilibrium

KW - furnace

KW - petroleum coke combustion

KW - soot formation model

KW - swirl

KW - three dimensional model

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DO - 10.1299/kikaib.57.2152

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JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

SN - 0387-5016

IS - 538

ER -

Three Dimensional Spray Combustion Simulation in a Practical Boiler

Abstract

Keywords

ASJC Scopus subject areas

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