Numerical Investigation on the Effect of Using Mixtures of Natural Gas and Aviation Fuel on Flame Characteristics of Swirl Gas Turbine Combustor
Farag, A., Belal, T., Zeid, A. (2015). Numerical Investigation on the Effect of Using Mixtures of Natural Gas and Aviation Fuel on Flame Characteristics of Swirl Gas Turbine Combustor. EKB Journal Management System, 16(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 16 – May 26 - 28, 2015), 1-15. doi: 10.21608/asat.2015.22907
Ahmed I. Farag; Tarek M. Belal; Akram E. Zeid. "Numerical Investigation on the Effect of Using Mixtures of Natural Gas and Aviation Fuel on Flame Characteristics of Swirl Gas Turbine Combustor". EKB Journal Management System, 16, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 16 – May 26 - 28, 2015, 2015, 1-15. doi: 10.21608/asat.2015.22907
Farag, A., Belal, T., Zeid, A. (2015). 'Numerical Investigation on the Effect of Using Mixtures of Natural Gas and Aviation Fuel on Flame Characteristics of Swirl Gas Turbine Combustor', EKB Journal Management System, 16(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 16 – May 26 - 28, 2015), pp. 1-15. doi: 10.21608/asat.2015.22907
Farag, A., Belal, T., Zeid, A. Numerical Investigation on the Effect of Using Mixtures of Natural Gas and Aviation Fuel on Flame Characteristics of Swirl Gas Turbine Combustor. EKB Journal Management System, 2015; 16(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 16 – May 26 - 28, 2015): 1-15. doi: 10.21608/asat.2015.22907

Numerical Investigation on the Effect of Using Mixtures of Natural Gas and Aviation Fuel on Flame Characteristics of Swirl Gas Turbine Combustor

International Conference on Aerospace Sciences and Aviation Technology
Article 19, Volume 16, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 16 – May 26 - 28, 2015, May 2015, Page 1-15  XML PDF (843.73 K)
Document Type: Original Article
DOI: 10.21608/asat.2015.22907
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Authors
Ahmed I. Farag1; Tarek M. Belal2; Akram E. Zeid3
1Ahmed I. Farag, Dr. Colonel Engineer, Lecturer free.
2Tarek M. Belal, Dr. college of engineering, pharos univ.
3Akram E. Zeid, Dr. College of maritime transportation.
Abstract
The present paper is directed to study aviation fuel combustion compared to that of natural gas in a gas turbine swirl Combustor. Finite-volume based CFD commercial package ANSYS Fluent 12 is used for the present investigation. The SST k-ω model is used to simulate turbulence. The non-premixed combustion model is used to simulate the reacting flow. Combustion of natural gas is sooty in nature. Thus, soot distribution in the combustor is investigated numerically using the two step soot model. Simple expressions for the soot formation and oxidation rates were employed. The radiation heat transfer equation was solved using the P-1 radiation model. The formation of thermal NO from molecular nitrogen was modeled and the prompt NO was also included in the computations. CFD modeling is validated against experimental temperature measurements for a swirl combustor when firing natural gas as referred to a previous paper. Using the SST-K-ω for predicting gas temperature distributions satisfy reasonable agreement with the experimental temperature measurements, except near the combustor upstream and in the vicinity of the combustor axis.
Keywords
Compressed natural gas; Aviation fuel; Gas Turbine Combustor; Temperature distributions and CFD Modeling; Swirl flame; Turbulence–chemistry interaction; model Validation
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