The effects of the degree of hybridisation on the design of hybrid-electric aircraft considering the balance between energy efficiency and mass penalty

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dc.contributor.authorKang, Le
dc.contributor.authorSun, Yicheng
dc.contributor.authorSmith, Howard
dc.contributor.authorMao, Junkui
dc.date.accessioned2023-02-15T11:55:09Z
dc.date.available2023-02-15T11:55:09Z
dc.date.issued2023-01-23
dc.description.abstractThe growing interest in the application of the hybrid-electric concept demands a rigorous method applied to balancing the energy efficiency improvement with the mass penalty. In hybrid-electric aircraft (HEA) design, it is necessary to avoid excessive usage of energy, which is caused by deliberate hybridising in pursuit of high electrical energy conversion efficiency. This paper presents a design method to achieve multi-objective designs conducted within a framework of multi-disciplinary design exploration appropriate for HEA, meeting the requirement of minimising the maximum take-off mass (MTOM) and fuel saving. A theoretical analysis proposes the existence of the optimum design area of HEA. This is followed by a series of demand-focused numerical design experiments that have verified the existence and position of the optimum design area by taking the mission of a short-range narrow-body airliner as the design target, considering the predicted technology timeline until 2050. Compared to a fuel-powered twin-turbofan aircraft, 65.56% fuel-saving, 16.4% reduction in flight operation cost, 44.58% reduction in block CO2emission, and 75% improvement in the cost-specific air range (COSAR) are achieved via hybridisation using the proposed design optimisation method.en_UK
dc.identifier.citationKang L, Yicheng S, Smith H, Junkui M. (2023) The effects of the degree of hybridisation on the design of hybrid-electric aircraft considering the balance between energy efficiency and mass penalty, Aerospace, Volume 10, Issue 2, January 2023, Article number 111en_UK
dc.identifier.issn2226-4310
dc.identifier.urihttps://doi.org/10.3390/aerospace10020111
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19198
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjecthybrid-electric aircraften_UK
dc.subjectenergy savingen_UK
dc.subjectdesign space explorationen_UK
dc.subjectmultidisciplinary design analysis and optimisationen_UK
dc.subjectmulti-objective designen_UK
dc.titleThe effects of the degree of hybridisation on the design of hybrid-electric aircraft considering the balance between energy efficiency and mass penaltyen_UK
dc.typeArticleen_UK

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