Thermal performance evaluation in gas turbine aero engines accessory gearbox

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dc.contributor.authorJafari, Soheil
dc.contributor.authorBouchareb, Ahmed
dc.contributor.authorNikolaidis, Theoklis
dc.date.accessioned2020-09-01T15:32:21Z
dc.date.available2020-09-01T15:32:21Z
dc.date.issued2020-08-26
dc.description.abstractThis paper presents a methodological approach for mathematical modelling and physics-based analysis of accessory gearbox (AGB) thermal behavior in gas turbine aero engines. The AGB structure, as one of the main sources of heat in gas turbine aero engines, is firstly described and its power losses will be divided into load-dependent and no-load dependent parts. Different mechanisms of heat generation are then identified and formulated to develop a toolbox for calculation of the churning, sliding friction, and rolling friction losses between contact surfaces of the AGB. The developed tool is also capable of calculating the heat loss mechanisms in different elements of the AGB, such as gears, bearings, and seals. The generated model is used to simulate and analyze the AGB thermal performance in the different flight phases in a typical flight mission, where the obtained results are validated against publicly available data. The analysis of the results confirms the effectiveness of the proposed method to estimate the heat loss values in the AGBs of gas turbine aero engines and to predict the thermal loads of the AGB in different flight phases. The developed tool enables the gas turbine thermal management system designers to deal with the generated heats effectively and in an optimal way.en_UK
dc.identifier.citationJafari S, Bouchareb A, Nikolaidis T. (2020) Thermal performance evaluation in gas turbine aero engines accessory gearbox. International Journal of Turbomachinery, Propulsion and Power, Volume 5, Issue 3, Article number 21en_UK
dc.identifier.issn2504-186X
dc.identifier.urihttps://doi.org/10.3390/ijtpp5030021
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15742
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectthermal management systemsen_UK
dc.subjectaccessory gearboxen_UK
dc.subjectgas turbine aero enginesen_UK
dc.subjectheat loss mechanismsen_UK
dc.subjectthermal performance evaluationen_UK
dc.titleThermal performance evaluation in gas turbine aero engines accessory gearboxen_UK
dc.typeArticleen_UK

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