TY - JOUR
T1 - Detonation processes application to increase thermal efficiency in gas turbine cycles
T2 - Case study for hydrogen enriched fuels
AU - Schneider, Robson A.
AU - Celis, Cesar
AU - Mendiburu, Andrés Z.
N1 - Publisher Copyright:
© 2024 The Author(s)
PY - 2025/1
Y1 - 2025/1
N2 - This work describes a thermodynamic comparison of the thermal efficiency of gas turbine engines featuring a conventional combustion chamber and a detonation combustion chamber, using methane, ethanol and mixtures of both ethanol and hydrogen and methane and hydrogen as fuels. The composition of gases was determined by the minimization of the Gibbs free energy, whereas temperature, pressure, and velocity of detonation waves were determined by the Chapman-Jouguet theory. The results obtained here show that the DCC gas turbine cycle has a higher net work output and thermal efficiency than the CCC gas turbine cycle for all fuels studied in this work. The maximum thermal efficiency obtained with the DCC gas turbine cycle is indeed 57.22 %, which represents a 53.75 % improvement over the maximum thermal efficiency obtained with the CCC gas turbine cycle (which has a peak thermal efficiency of 37.22 %), under the same pressure ratio and turbine inlet temperature.
AB - This work describes a thermodynamic comparison of the thermal efficiency of gas turbine engines featuring a conventional combustion chamber and a detonation combustion chamber, using methane, ethanol and mixtures of both ethanol and hydrogen and methane and hydrogen as fuels. The composition of gases was determined by the minimization of the Gibbs free energy, whereas temperature, pressure, and velocity of detonation waves were determined by the Chapman-Jouguet theory. The results obtained here show that the DCC gas turbine cycle has a higher net work output and thermal efficiency than the CCC gas turbine cycle for all fuels studied in this work. The maximum thermal efficiency obtained with the DCC gas turbine cycle is indeed 57.22 %, which represents a 53.75 % improvement over the maximum thermal efficiency obtained with the CCC gas turbine cycle (which has a peak thermal efficiency of 37.22 %), under the same pressure ratio and turbine inlet temperature.
KW - Alternative fuels
KW - Detonation combustion chamber gas turbine cycle
KW - Ethanol
KW - Hydrogen
KW - Thermal efficiency
KW - Thermodynamic model
UR - http://www.scopus.com/inward/record.url?scp=85212332552&partnerID=8YFLogxK
U2 - 10.1016/j.ijft.2024.101010
DO - 10.1016/j.ijft.2024.101010
M3 - Article
AN - SCOPUS:85212332552
SN - 2666-2027
VL - 25
JO - International Journal of Thermofluids
JF - International Journal of Thermofluids
M1 - 101010
ER -