In this study, in order to obtain fundamental data for designing the practical gas turbine combustors in the chemical gas turbine (Ch/GT) combined cycle system and/or other gas turbine systems which utilize low heating value fuel such as coal and biomass gasification syngas, we have simulated low heating value fuel–air turbulent diffusion combustion. The simulated results for the profiles of temperature and species concentrations have been compared with the measured ones. As a reaction model, the flamelet model has been applied to predict the turbulent diffusion combustion characteristics. A flamelet library which indicates relationships for scalar dissipation rate, mixture fraction, and mass fraction of chemical species were given by the calculated results of counterflow diffusion flame using 16 chemical species and 25 elementary reactions. Clipped Gaussian and a log-normal distribution were employed as the PDFs of the mixture fraction and the scalar dissipation rate, respectively. In this model, the k-ε two equations turbulence model is used to describe the turbulent flow field and the radiative heat transfer is calculated by the six-flux model. The governing equations were solved iteratively by the SIMPLE algorithm. By the comparisons of the simulated and measured results, it was clarified that the simulated profiles conformed fairly well to the measured ones in the turbulent combustor, and that this combustion simulation model could predict the low heating value fuel turbulent diffusion combustion characteristics.
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2002 International Joint Power Generation Conference
June 24–26, 2002
Scottsdale, Arizona, USA
Conference Sponsors:
- Power Division
ISBN:
0-7918-3617-7
PROCEEDINGS PAPER
Numerical Simulation of Low Heating Value Fuel Turbulent Diffusion Combustion
Norio Arai,
Norio Arai
Nagoya University, Nagoya, Aichi, Japan
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Takahisa Yamamoto,
Takahisa Yamamoto
Nagoya University, Nagoya, Aichi, Japan
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Tomohiko Furuhata
Tomohiko Furuhata
Nagoya University, Nagoya, Aichi, Japan
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Norio Arai
Nagoya University, Nagoya, Aichi, Japan
Takahisa Yamamoto
Nagoya University, Nagoya, Aichi, Japan
Tomohiko Furuhata
Nagoya University, Nagoya, Aichi, Japan
Paper No:
IJPGC2002-26113, pp. 735-741; 7 pages
Published Online:
February 24, 2009
Citation
Arai, N, Yamamoto, T, & Furuhata, T. "Numerical Simulation of Low Heating Value Fuel Turbulent Diffusion Combustion." Proceedings of the 2002 International Joint Power Generation Conference. 2002 International Joint Power Generation Conference. Scottsdale, Arizona, USA. June 24–26, 2002. pp. 735-741. ASME. https://doi.org/10.1115/IJPGC2002-26113
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