In this section
@article{Jagtap:2024:10.1016/j.ijhydene.2024.10.329,
author = {Jagtap, SS and Childs, PRN and Stettler, MEJ},
doi = {10.1016/j.ijhydene.2024.10.329},
journal = {International Journal of Hydrogen Energy},
pages = {317--328},
title = {Conceptual design-optimisation of a future hydrogen-powered ultrahigh bypass ratio geared turbofan engine},
url = {http://dx.doi.org/10.1016/j.ijhydene.2024.10.329},
volume = {95},
year = {2024}
}
TY - JOUR
AB - Liquid hydrogen (LH2) is a proposed option to decarbonise long-haul aviation. LH2 aircraft (combustion-based) is expected to be lighter than Jet-A aircraft which necessitates reduction in the engine thrust requirement. Thus, the thermodynamic and energy performance of a LH2 aircraft engine, and its design and optimisation, is of significance. In a first, a conceptual design and optimisation of a future LH2 powered ultra-high bypass-ratio geared turbofan engine is conducted for reduced aircraft thrust requirement, using GasTurb 13 software and implementing future materials and component efficiencies. The thrust specific energy consumption (TSEC) of the optimised LH2 engine is 6–8% lower than Jet-A. The TSEC of LH2 engine is lower than Jet-A due to hydrogen's higher gravimetric energy density during combustion, higher specific heat of combustion products, and reduced thrust requirement. It is observed that optimised LH2 engine has 11% smaller diameter, 5.5–7.5% shorter length, 6–14% lower turbine entry temperature and 7.4–17.6% lower weight, than a Jet-A engine. The results of this work will be useful to future studies on LH2 engine and aircraft design, and LH2 aircraft emissions and contrails modelling.
AU - Jagtap,SS
AU - Childs,PRN
AU - Stettler,MEJ
DO - 10.1016/j.ijhydene.2024.10.329
EP - 328
PY - 2024///
SN - 0360-3199
SP - 317
TI - Conceptual design-optimisation of a future hydrogen-powered ultrahigh bypass ratio geared turbofan engine
T2 - International Journal of Hydrogen Energy
UR - http://dx.doi.org/10.1016/j.ijhydene.2024.10.329
UR - https://doi.org/10.1016/j.ijhydene.2024.10.329
UR - http://hdl.handle.net/10044/1/116246
VL - 95
ER -
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