TY - JOUR
T1 - Impact of fuel type on the performance of a solid oxide fuel cell integrated with a gas turbine
AU - Rupiper, Lauren N.
AU - Skabelund, Brent B.
AU - Ghotkar, Rhushikesh
AU - Milcarek, Ryan J.
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/6
Y1 - 2022/6
N2 - This study investigates the performance of a flame-assisted fuel cell integrated with a gas turbine operating with six fuels (CH4, C3H8, JP-4, JP-5, JP-10, and H2). A thermodynamic model is developed for the fuel-rich combustion, fuel-lean combustion and each step of the gas turbine including the compressor, turbine and recuperator in order to analyze the overall hybrid gas turbine cycle. As the fuel/air equivalence ratio increases, the hybrid system efficiency increases initially then decreases despite increasing hydrogen concentration in the exhaust. The peak efficiency occurs around an equivalence ratio of 2 for all fuels. The optimal performance of the hybrid system utilizes H2 as the fuel. The peak electrical efficiency of the hybrid setup is 64.7% with H2 fuel, 60.3% with CH4 fuel, 60.9% with C3H8 fuel, 61.7% with JP-4 fuel, 61.0% with JP-5 fuel and 61.2% with JP-10 fuel, representing a significant increase over the standard gas turbine cycle. With H2 fuel, the overall integrated system is predicted to be 24.5% more efficient than the standard gas turbine system. These results show promise for a fuel flexible hybrid gas turbine which could benefit the growing aircraft industry as the desire for a more electric airplane increases.
AB - This study investigates the performance of a flame-assisted fuel cell integrated with a gas turbine operating with six fuels (CH4, C3H8, JP-4, JP-5, JP-10, and H2). A thermodynamic model is developed for the fuel-rich combustion, fuel-lean combustion and each step of the gas turbine including the compressor, turbine and recuperator in order to analyze the overall hybrid gas turbine cycle. As the fuel/air equivalence ratio increases, the hybrid system efficiency increases initially then decreases despite increasing hydrogen concentration in the exhaust. The peak efficiency occurs around an equivalence ratio of 2 for all fuels. The optimal performance of the hybrid system utilizes H2 as the fuel. The peak electrical efficiency of the hybrid setup is 64.7% with H2 fuel, 60.3% with CH4 fuel, 60.9% with C3H8 fuel, 61.7% with JP-4 fuel, 61.0% with JP-5 fuel and 61.2% with JP-10 fuel, representing a significant increase over the standard gas turbine cycle. With H2 fuel, the overall integrated system is predicted to be 24.5% more efficient than the standard gas turbine system. These results show promise for a fuel flexible hybrid gas turbine which could benefit the growing aircraft industry as the desire for a more electric airplane increases.
KW - Flame-assisted fuel cells
KW - Hybrid gas turbine
KW - Jet fuel
KW - Solid oxide fuel cells
KW - Syngas production
KW - Two-stage combustion
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U2 - 10.1016/j.seta.2022.101959
DO - 10.1016/j.seta.2022.101959
M3 - Article
AN - SCOPUS:85122284137
SN - 2213-1388
VL - 51
JO - Sustainable Energy Technologies and Assessments
JF - Sustainable Energy Technologies and Assessments
M1 - 101959
ER -