Effect of inlet air temperature on the spray combustion characteristics in a model gas turbine combustor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A numerical study was performed to determine the effects of operating parameters, including inlet temperature and equivalent ratio on spray combustion characteristics and NOx emission in a gas turbine combustor. A sector model of a typical wall jet can combustor, featured introduction of the primary and dilution air via the wall jet, was used in 3-D calculations. Various operating conditions were applied with inlet temperature from 373 to 1000 K while any others were fixed. The RNG k-ε model and the eddy break-up model have been used for the calculation of turbulence and combustion, respectively. Formation of thermal NOx was determined from the Zeldovich mechanism. It was found that highly heated inlet air makes the flow faster than moderately heated inlet air and the wall jet penetrates deeply up to the centre of combustor for the constant overall equivalent condition, which splits the recirculation region into two parts in the primary zone. The highly heated inlet air shows favourable effects on the temperature distribution, but makes NOx emission increase at the exit of the combustor. The inlet air temperature exerts no large influence on the evaporation rate of liquid fuel in the primary combustion zone, but expedites the evaporation of liquid fuel and reaction at the downstream of the primary combustion zone.

Original languageEnglish
Title of host publication5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday
Pages197-200
Number of pages4
Publication statusPublished - 2005 Dec 1
Event5th Asia-Pacific Conference on Combustion, ASPACC 2005 - Adelaide, SA, Australia
Duration: 2005 Jul 172005 Jul 20

Other

Other5th Asia-Pacific Conference on Combustion, ASPACC 2005
CountryAustralia
CityAdelaide, SA
Period05/7/1705/7/20

Fingerprint

Air intakes
Combustors
Gas turbines
Liquid fuels
Evaporation
Temperature
Dilution
Temperature distribution
Turbulence
Air

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Jo, S. P., Kim, H. Y., Park, S., & Kim, Y. C. (2005). Effect of inlet air temperature on the spray combustion characteristics in a model gas turbine combustor. In 5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday (pp. 197-200)

Effect of inlet air temperature on the spray combustion characteristics in a model gas turbine combustor. / Jo, Sang Pil; Kim, Ho Young; Park, Simsoo; Kim, Yong Chan.

5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday. 2005. p. 197-200.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jo, SP, Kim, HY, Park, S & Kim, YC 2005, Effect of inlet air temperature on the spray combustion characteristics in a model gas turbine combustor. in 5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday. pp. 197-200, 5th Asia-Pacific Conference on Combustion, ASPACC 2005, Adelaide, SA, Australia, 05/7/17.
Jo SP, Kim HY, Park S, Kim YC. Effect of inlet air temperature on the spray combustion characteristics in a model gas turbine combustor. In 5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday. 2005. p. 197-200
Jo, Sang Pil ; Kim, Ho Young ; Park, Simsoo ; Kim, Yong Chan. / Effect of inlet air temperature on the spray combustion characteristics in a model gas turbine combustor. 5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday. 2005. pp. 197-200
@inproceedings{f9aca73bd2be4b1fb3c7beea65542554,
title = "Effect of inlet air temperature on the spray combustion characteristics in a model gas turbine combustor",
abstract = "A numerical study was performed to determine the effects of operating parameters, including inlet temperature and equivalent ratio on spray combustion characteristics and NOx emission in a gas turbine combustor. A sector model of a typical wall jet can combustor, featured introduction of the primary and dilution air via the wall jet, was used in 3-D calculations. Various operating conditions were applied with inlet temperature from 373 to 1000 K while any others were fixed. The RNG k-ε model and the eddy break-up model have been used for the calculation of turbulence and combustion, respectively. Formation of thermal NOx was determined from the Zeldovich mechanism. It was found that highly heated inlet air makes the flow faster than moderately heated inlet air and the wall jet penetrates deeply up to the centre of combustor for the constant overall equivalent condition, which splits the recirculation region into two parts in the primary zone. The highly heated inlet air shows favourable effects on the temperature distribution, but makes NOx emission increase at the exit of the combustor. The inlet air temperature exerts no large influence on the evaporation rate of liquid fuel in the primary combustion zone, but expedites the evaporation of liquid fuel and reaction at the downstream of the primary combustion zone.",
author = "Jo, {Sang Pil} and Kim, {Ho Young} and Simsoo Park and Kim, {Yong Chan}",
year = "2005",
month = "12",
day = "1",
language = "English",
pages = "197--200",
booktitle = "5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday",

}

TY - GEN

T1 - Effect of inlet air temperature on the spray combustion characteristics in a model gas turbine combustor

AU - Jo, Sang Pil

AU - Kim, Ho Young

AU - Park, Simsoo

AU - Kim, Yong Chan

PY - 2005/12/1

Y1 - 2005/12/1

N2 - A numerical study was performed to determine the effects of operating parameters, including inlet temperature and equivalent ratio on spray combustion characteristics and NOx emission in a gas turbine combustor. A sector model of a typical wall jet can combustor, featured introduction of the primary and dilution air via the wall jet, was used in 3-D calculations. Various operating conditions were applied with inlet temperature from 373 to 1000 K while any others were fixed. The RNG k-ε model and the eddy break-up model have been used for the calculation of turbulence and combustion, respectively. Formation of thermal NOx was determined from the Zeldovich mechanism. It was found that highly heated inlet air makes the flow faster than moderately heated inlet air and the wall jet penetrates deeply up to the centre of combustor for the constant overall equivalent condition, which splits the recirculation region into two parts in the primary zone. The highly heated inlet air shows favourable effects on the temperature distribution, but makes NOx emission increase at the exit of the combustor. The inlet air temperature exerts no large influence on the evaporation rate of liquid fuel in the primary combustion zone, but expedites the evaporation of liquid fuel and reaction at the downstream of the primary combustion zone.

AB - A numerical study was performed to determine the effects of operating parameters, including inlet temperature and equivalent ratio on spray combustion characteristics and NOx emission in a gas turbine combustor. A sector model of a typical wall jet can combustor, featured introduction of the primary and dilution air via the wall jet, was used in 3-D calculations. Various operating conditions were applied with inlet temperature from 373 to 1000 K while any others were fixed. The RNG k-ε model and the eddy break-up model have been used for the calculation of turbulence and combustion, respectively. Formation of thermal NOx was determined from the Zeldovich mechanism. It was found that highly heated inlet air makes the flow faster than moderately heated inlet air and the wall jet penetrates deeply up to the centre of combustor for the constant overall equivalent condition, which splits the recirculation region into two parts in the primary zone. The highly heated inlet air shows favourable effects on the temperature distribution, but makes NOx emission increase at the exit of the combustor. The inlet air temperature exerts no large influence on the evaporation rate of liquid fuel in the primary combustion zone, but expedites the evaporation of liquid fuel and reaction at the downstream of the primary combustion zone.

UR - http://www.scopus.com/inward/record.url?scp=84878980298&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878980298&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84878980298

SP - 197

EP - 200

BT - 5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday

ER -