Experimental Verification of the Effect of Rotor Design Changes on the Mechanical Losses

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU146200" target="_blank" >RIV/00216305:26210/22:PU146200 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Experimental Verification of the Effect of Rotor Design Changes on the Mechanical Losses
Original language description
The overall efficiency of high-speed rotating machines depends largely on their mechanical efficiency. Mechanical efficiency is not just a matter of bearing losses, but it includes all interactions of the rotor with its environment. Significant losses occur as a result of rotating surfaces in the operating fluids or as a result of interaction with the rotor seal system. Analytical and empirical descriptions of turbulent or laminar flows around the rotating surfaces were used to estimate the mechanical losses of the turbocharger rotor based on geometric parameters and operational conditions. Based on the knowledge of the influence of each parameter, design changes on the rotor and stator were proposed. The positive effect of design modifications on mechanical losses was experimentally verified by measurements on a test turbocharger. The results demonstrate that a reduction of mechanical losses can be achieved by very simple design modifications, without significant costs.
Czech name
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Czech description
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Project
<a href="/en/project/TN01000026" target="_blank" >TN01000026: Josef Bozek National Center of Competence for Surface Vehicles</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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