Modeling geared turbofan and open rotor engine performance for year-2050 long-range and short-range aircraft

dc.contributor.authorMastropierro, Francesco Saverio
dc.contributor.authorSebastiampillai, Joshua
dc.contributor.authorJacob, Florian
dc.contributor.authorRolt, Andrew Martin
dc.date.accessioned2019-11-27T11:23:30Z
dc.date.available2019-11-27T11:23:30Z
dc.date.issued2019-10-04
dc.description.abstractThe paper provides design and performance data for two envisaged year-2050 engines: a geared high bypass turbofan for intercontinental missions and a contra-rotating pusher open rotor targeting short to medium range aircraft. It defines component performance and cycle parameters, general arrangements, sizes and weights. Reduced thrust requirements reflect expected improvements in engine and airframe technologies. Advanced simulation platforms have been developed to model the engines and details of individual components. The engines are optimised and compared with 'baseline' year-2000 turbofans and an anticipated year-2025 open rotor to quantify the relative fuel-burn benefits. A preliminary scaling with year-2050 'reference' engines, highlights trade-offs between reduced specific fuel consumption (SFC) and increased engine weight and diameter. These parameters are converted into mission fuel burn variations using linear and non-linear trade factors. The final turbofan has an optimised design-point bypass ratio of 16.8, and a maximum overall pressure ratio of 75.4, for a 31.5% TOC thrust reduction and a 46% mission fuel burn reduction per passenger kilometre compared to the respective 'baseline' engine-aircraft combination. The open rotor SFC is 9.5% less than the year-2025 open rotor and 39% less than the year-2000 turbofan, while the TOC thrust increases by 8% versus the 2025 open rotor, due to assumed increase in passenger capacity. Combined with airframe improvements, the final open rotor-powered aircraft has a 59% fuel-burn reduction per passenger kilometre relative to its baseline.en_UK
dc.identifier.citationMastropierro FS, Sebastiampillai J, Jacob F, Rolt A. (2020) Modeling geared turbofan and open rotor engine performance for year-2050 long-range and short-range aircraft. Journal of Engineering for Gas Turbines and Power. Volume 142, Issue 4, April 2020, Article number 041016, Paper number GTP-19-1447en_UK
dc.identifier.issn0742-4795
dc.identifier.urihttps://doi.org/10.1115/1.4045077
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14772
dc.language.isoenen_UK
dc.publisherASMEen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectTradeoffsen_UK
dc.subjectWeight (Mass)en_UK
dc.subjectSimulationen_UK
dc.subjectFuel consumptionen_UK
dc.subjectTurbofansen_UK
dc.subjectRotorsen_UK
dc.subjectModelingen_UK
dc.subjectAircraften_UK
dc.subjectEnginesen_UK
dc.subjectPressureen_UK
dc.titleModeling geared turbofan and open rotor engine performance for year-2050 long-range and short-range aircraften_UK
dc.typeArticleen_UK

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