Design and manufacturing challenges of a microturbine wheel

dc.contributor.authorHosseini, Seyed Vahid
dc.contributor.authorGamil, Abdelaziz
dc.contributor.authorSoodani, Sara
dc.contributor.authorNikolaidis, Theoklis
dc.contributor.authorMadani, Seyed Hossein
dc.contributor.authorChen, Yong
dc.contributor.authorChizari, Mahmoud
dc.date.accessioned2023-11-13T15:27:14Z
dc.date.available2023-11-13T15:27:14Z
dc.date.freetoread2023-11-13
dc.date.issued2023-04-28
dc.description.abstractMicro gas turbine (MGT) is a core technology in many hybrid and integrated power systems to address the low-emission future aviation and decentralisation of energy generation. To achieve a high power-to-weight ratio as well as lowering the required maintenance, a new compact configuration with an air-bearing compartment was developed to build a 2 kW micro gas turbine. Designing a turbine wheel faced a multidisciplinary problem with many inputs and constraints in aerodynamic, heat transfer, strength, and manifesting aspects. To meet all requirements of these aspects, a design procedure is proposed in this paper. Since the manufacturing process affects the performance and life of the system, several processes, including casting, additive manufacturing (AM) and machining of the turbine wheel with different materials, were carried out, and the structural strength and performance of the components were investigated in this study. The prototype was tested experimentally to prove its performance and validate the concept. The cast wheel demonstrated both the required performance of 2 kW power output of the MGT in turbine inlet temperature of 1200 K and rotational speed of 170 krpm. However, the machined and additive manufactured samples for low-temperature/low-speed off-design conditions did not withstand structurally and called for a re-design or change in conditions.en_UK
dc.description.sponsorshipEuropean Union funding: Marie Skłodowska-Curie 801604en_UK
dc.identifier.citationHosseini S, Gamil A, Soodani A, et al., (2023) Design and manufacturing challenges of a microturbine wheel. In: 15th European Turbomachinery Conference: Turbomachinery Fluid Dynamics and Thermodynamics, 24-28 April 2023, Budapest, Hungary. Paper number ETC2023-385en_UK
dc.identifier.eissn2313-0067
dc.identifier.urihttps://doi.org/10.29008/ETC2023-385
dc.identifier.uri https://www.euroturbo.eu/publications/conference-proceedings-repository/all-papers/
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20542
dc.language.isoenen_UK
dc.publisherEuropean Conference on Turbomachinery (ETC)en_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectmicro gas turbineen_UK
dc.subjectprototypeen_UK
dc.subjectturbine wheelen_UK
dc.subjectadditive manufacturingen_UK
dc.subjectcastingen_UK
dc.subjectmachiningen_UK
dc.titleDesign and manufacturing challenges of a microturbine wheelen_UK
dc.typeConference paperen_UK

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