Combustion of Syngas Fuel in Gas Turbine Can Combustor

Ghenaï, Chaouki

doi:10.1155/2010/342357

Cited by 60 publications

(50 citation statements)

References 6 publications

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“…Natural gas is made mainly of methane (CH 4 ), syngas fuel contains methane (CH 4 ), carbon dioxide (CO 2 ), carbon monoxide (CO), hydrogen (H 2 ), nitrogen (N 2 ) and water (H 2 O), and biogas contains mainly methane (CH 4 ) and carbon dioxide (CO 2 ). The changes in the fuel compositions and lower heating values for alternative gas fuels (syngas and biogas) affect the combustion process, the efficiency of the combustion system and the gas emissions at the exit from the combustor [3]. The new gas turbine combustors for renewable and biofuels should be able to burn a wide variety of gases (syngas, biogas and other alternative gas fuels) with low, medium and high heating values.…”

Section: Combustion Of Renewable Biogas Fuels 832mentioning

confidence: 99%

“…The results of the experimental investigation show that, volume fraction of hydrogen content in syngas fuel results in higher flame temperature that significantly impacts the life of hot sections of the combustor. Giles, et al [7], Ghenai [3] and Zbeeb and Ghenai [8] performed numerical investigations on the effects of syngas compositions and diluents on the flame structure and emissions for non-premixed combustion. For premixed combustion, lean premixed combustion of hydrogen-syngas/methane fuel mixtures was investigated experimentally by Alavandi and Agarwal [9] and Schefer [10].…”

Section: Combustion Of Renewable Biogas Fuels 832mentioning

confidence: 99%

“…The equations used for natural gas, biogas, and natural gas/biogas mixture fuels combustion modeling [3] are based on the equations of conservation of mass, momentum and energy, the equations of the turbulent kinetic energy k and the dissipation rate of the turbulent kinetic energy the ε standard k-ε turbulence model), the mixture fraction equation (mixture fraction/PDF (probability density function)) model for non-premixed combustion modeling), and the equation to simulate the radiation from the flame (P-1 radiation model). For steady turbulent non premixed combustion [3], the time averaged gas phase equations are summarized in Table 1.…”

Section: Governing Equations-natural Gas and Biogas Combustion Modelingmentioning

confidence: 99%

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Combustion of Renewable Biogas Fuels

Ghenaï¹,

Janajreh²

2015

JEPE

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Biogas fuel is a sustainable and renewable fuel produced from anaerobic digestion of organic matter. The biogas fuel is a flammable mixture of methane and carbon dioxide with low to medium calorific values. Biogas is an alternative to conventional fossil fuels and can be used for heating, transportation and power generation. CFD (computational fluid dynamic) analysis of the combustion performance and emissions of biogas fuel in gas turbine engines is presented in this study. The main objective of this study is to understand the impact of the variability in the biogas fuel compositions and lower heating values on the combustion process. Natural gas, biogas from anaerobic digester, landfill biogas, and natural gas/biogas mixture fuels combustion were investigated in this study. The CFD results show lower peak flame temperature and CO mole fractions inside the combustor and lower NO x emissions at the combustor exit for the biogas compared to natural gas fuel. The peak flame temperature decreases by 37% for the biogas landfill (CO 2 /CH 4 = 0.89) and by 22% for the biogas anaerobic digester (CO 2 /CH 4 = 0.54) compared to natural gas fuel combustion. The peak CO mole fraction inside the combustor decreases from 9.8 × 10 -2 for natural gas fuel to 2.22 × 10 -4 for biogas anaerobic digester and 1.32 × 10 -7 for biogas landfill. The average NO x mole fraction at the combustor exit decreases from 1.13 × 10 -5 for natural gas fuel to 0.40 × 10 -6 for biogas anaerobic digester and 1.06 × 10 -10 for biogas landfill. The presence of non-combustible constituents in the biogas reduces the temperature of the flame and consequently the NO x emissions.

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Section: Combustion Of Renewable Biogas Fuels 832mentioning

confidence: 99%

Section: Combustion Of Renewable Biogas Fuels 832mentioning

confidence: 99%

Section: Governing Equations-natural Gas and Biogas Combustion Modelingmentioning

confidence: 99%

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Combustion of Renewable Biogas Fuels

Ghenaï¹,

Janajreh²

2015

JEPE

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“…This model assumes that chemical reactions happen until they reach the chemical equilibrium. Even though this approach has limitations, it is adequate to predict temperature distributions in gas turbines combustion chambers (Tomczak et al, 2002;Ghenai, 2010). The equilibrium combustion model has been used extensively for turbulent non-premixes flame calculation, as can be seen on Kent and Honnery (1987), Piro (2007), and Sacomano Filho (2011).…”

Section: Combustion Modeling and Statistical Treatmentmentioning

confidence: 99%

“…This model is very similar to the combustion model used in this work. Ghenai (2010) reports the numerical investigation of the combustion of syngas fuel mixture in gas turbine can combustor. The objective is to understand the impact of the variability in the alternative fuel composition and heating value on combustion performance and emissions.…”

Section: Introductionmentioning

confidence: 99%

A swirler stabilized combustion chamber for a micro-gas turbine fuelled with natural gas

Krieger

Campos

Filho

et al. 2012

J. Braz. Soc. Mech. Sci. & Eng.

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Thermoneutral conditions in dry reforming of ethanol

Kale

Kulkarni

2013

Asia-Pacific J Chem Eng

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The reaction enthalpy (ΔH) of reforming processes like steam and dry (CO 2 ) reforming is of great importance for scale-up and process development. Generally, the reforming processes are considered endothermic in nature. However, a detailed study of the reaction enthalpy of reforming process, taking the example of dry reforming of ethanol considered in this study, reveals the existence of exothermic reaction enthalpy at low temperatures. A study of reaction enthalpy of ethanol dry reforming within pressure (1-10 bar), temperature range (300-900°C), and CO 2 to carbon in ethanol ratio (CCER 1-5) was initiated to determine the existence of thermoneutral temperatures for the overall reaction. The variation of thermoneutral conditions and product yields at the thermoneutral temperatures was studied. The utilization potential of the products generated at thermoneutral conditions was also evaluated. The low-pressure thermoneutral operation favored higher hydrogen production, lower methane and water formation, whereas the high-pressure thermoneutral operation favored product gas of lower syngas ratio with higher CO 2 conversion (utilization) in the process. The study can be extended to steam and dry reforming of other fuels to generate valuable products at thermoneutral conditions avoiding use of air in the process and subsequent N 2 dilution of the product gas.

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Combustion of Syngas Fuel in Gas Turbine Can Combustor

Cited by 60 publications

References 6 publications

Combustion of Renewable Biogas Fuels

Combustion of Renewable Biogas Fuels

A swirler stabilized combustion chamber for a micro-gas turbine fuelled with natural gas

Thermoneutral conditions in dry reforming of ethanol

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