Assessing Uninstalled Hydrogen-Fuelled Retrofitted Turbofan Engine Performance
Hydrogen as fuel in civil aviation gas turbines is promising due to its no-carbon content and higher net specific energy. For an entry-level market and cost-saving strategy, it is advisable to consider reusing existing engine components whenever possible and retrofitting existing engines with hydrog...
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MDPI AG
2025-03-01
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| Online Access: | https://www.mdpi.com/2673-4591/90/1/24 |
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| author | Jarief Farabi Christos Mourouzidis Pericles Pilidis |
| author_facet | Jarief Farabi Christos Mourouzidis Pericles Pilidis |
| author_sort | Jarief Farabi |
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| description | Hydrogen as fuel in civil aviation gas turbines is promising due to its no-carbon content and higher net specific energy. For an entry-level market and cost-saving strategy, it is advisable to consider reusing existing engine components whenever possible and retrofitting existing engines with hydrogen. Feasible strategies of retrofitting state-of-the-art Jet A-1 fuelled turbofan engines with hydrogen while applying minimum changes to hardware are considered in the present study. The findings demonstrate that hydrogen retrofitted engines can deliver advantages in terms of core temperature levels and efficiency. However, the engine operability assessment showed that retrofitting with minimum changes leads to a ~5% increase in the HP spool rotational speed for the same thrust at take-off, which poses an issue in terms of certification for the HP spool rotational speed overspeed margin. |
| format | Article |
| id | doaj-art-003a0c0f74ae43d38ffb6448ce125bee |
| institution | Kabale University |
| issn | 2673-4591 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Engineering Proceedings |
| spelling | doaj-art-003a0c0f74ae43d38ffb6448ce125bee2025-08-20T03:27:01ZengMDPI AGEngineering Proceedings2673-45912025-03-019012410.3390/engproc2025090024Assessing Uninstalled Hydrogen-Fuelled Retrofitted Turbofan Engine PerformanceJarief Farabi0Christos Mourouzidis1Pericles Pilidis2Propulsion & Thermal Power Engineering Department, Cranfield University (CU), College Road, Cranfield, Bedfordshire MK43 0AL, UKPropulsion & Thermal Power Engineering Department, Cranfield University (CU), College Road, Cranfield, Bedfordshire MK43 0AL, UKPropulsion & Thermal Power Engineering Department, Cranfield University (CU), College Road, Cranfield, Bedfordshire MK43 0AL, UKHydrogen as fuel in civil aviation gas turbines is promising due to its no-carbon content and higher net specific energy. For an entry-level market and cost-saving strategy, it is advisable to consider reusing existing engine components whenever possible and retrofitting existing engines with hydrogen. Feasible strategies of retrofitting state-of-the-art Jet A-1 fuelled turbofan engines with hydrogen while applying minimum changes to hardware are considered in the present study. The findings demonstrate that hydrogen retrofitted engines can deliver advantages in terms of core temperature levels and efficiency. However, the engine operability assessment showed that retrofitting with minimum changes leads to a ~5% increase in the HP spool rotational speed for the same thrust at take-off, which poses an issue in terms of certification for the HP spool rotational speed overspeed margin.https://www.mdpi.com/2673-4591/90/1/24hydrogen gas turbineretrofitted enginespecific energy consumption (SEC)engine cycle efficiencytop of climb (TOC)end of runway (EOR) |
| spellingShingle | Jarief Farabi Christos Mourouzidis Pericles Pilidis Assessing Uninstalled Hydrogen-Fuelled Retrofitted Turbofan Engine Performance Engineering Proceedings hydrogen gas turbine retrofitted engine specific energy consumption (SEC) engine cycle efficiency top of climb (TOC) end of runway (EOR) |
| title | Assessing Uninstalled Hydrogen-Fuelled Retrofitted Turbofan Engine Performance |
| title_full | Assessing Uninstalled Hydrogen-Fuelled Retrofitted Turbofan Engine Performance |
| title_fullStr | Assessing Uninstalled Hydrogen-Fuelled Retrofitted Turbofan Engine Performance |
| title_full_unstemmed | Assessing Uninstalled Hydrogen-Fuelled Retrofitted Turbofan Engine Performance |
| title_short | Assessing Uninstalled Hydrogen-Fuelled Retrofitted Turbofan Engine Performance |
| title_sort | assessing uninstalled hydrogen fuelled retrofitted turbofan engine performance |
| topic | hydrogen gas turbine retrofitted engine specific energy consumption (SEC) engine cycle efficiency top of climb (TOC) end of runway (EOR) |
| url | https://www.mdpi.com/2673-4591/90/1/24 |
| work_keys_str_mv | AT jarieffarabi assessinguninstalledhydrogenfuelledretrofittedturbofanengineperformance AT christosmourouzidis assessinguninstalledhydrogenfuelledretrofittedturbofanengineperformance AT periclespilidis assessinguninstalledhydrogenfuelledretrofittedturbofanengineperformance |