Performance and emission assessment of thermo-electric power plant for rotorcraft propulsion

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dc.contributor.authorRoumeliotis, Ioannis
dc.contributor.authorArena, Francesco
dc.contributor.authorLiu, Yize
dc.contributor.authorVouros, Stavros
dc.contributor.authorPachidis, Vassilios
dc.contributor.authorBroca, Olivier
dc.contributor.authorToure, Djiby
dc.contributor.authorUnlu, Deniz
dc.date.accessioned2021-01-26T09:01:56Z
dc.date.available2021-01-26T09:01:56Z
dc.date.issued2021-01-11
dc.description.abstractThis paper assesses a gas turbine based parallel rotorcraft hybrid electric propulsion system in terms of overall performance and emissions. Three different electric power train technology levels and three different power management strategies are considered for identifying the potential benefits of hybridization in relation to technology advancements and quantifying the effect of PMS. For this analysis, a Passenger Air Transport of a twin-engine medium helicopter is used. The propulsion systems mission simulation and emissions calculation are performed in Simcenter Amesim. The assessment framework integrates a thermal power-plant model, an electric power plant model for the hybrid electric cases, a helicopter simulation model and suitable pollutant emissions calculation correlations. For establishing NOx emission correlations that can be used for turboshaft engine calculations, a systematic evaluation of different correlations available in the literature is performed. The correlations are compared for different operating points against a calibrated stirred reactor model. The suitable correlations are utilized in the framework. The propulsion system is sized according to the technology levels and power management strategy considered, updating the helicopter Take-Off Weight for each case. The results indicate that there is potential for efficiency betterment and CO2 emissions reduction. The benefits strongly depend on the power management strategy and energy and power density of the electric power train. For current technology level and for the cases examined herein no benefits in terms of overall performance and emissions accrue. If future technology level is considered, hybridization may offer benefits in terms of performance to the expense of NOx emissions for the case that the power train is used for boosting and the gas turbine is scaled down. Power splitting may offer block fuel, turbine life and NOx benefits to the expense of overall energy performance.en_UK
dc.identifier.citationRoumeliotis I, Arena F, Liu Y, et al., (2021) Performance and emission assessment of thermo-electric power plant for rotorcraft propulsion. In: ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition, 21-25 September 2020, London, Virtual Event. Paper number GT2020-15724en_UK
dc.identifier.isbn978-0-7918-8414-0
dc.identifier.urihttps://doi.org/10.1115/GT2020-15724
dc.identifier.urihttps://asmedigitalcollection.asme.org/GT/proceedings/GT2020/84140/Virtual,%20Online/1094886
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16247
dc.language.isoenen_UK
dc.publisherAmerican Society of Mechanical Engineersen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titlePerformance and emission assessment of thermo-electric power plant for rotorcraft propulsionen_UK
dc.typeConference paperen_UK

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