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Experimental investigation of transmission loss in an automotive turbocharger compressor under ideal and real engine operating conditions
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering. KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx).
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2017 (English)In: 12th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2017, KTH Royal Institute of Technology, 2017Conference paper, Published paper (Refereed)
Abstract [en]

Acoustic transmission losses are expected to occur over the turbocharger compressor, especially along its rotating wheel section. Experiments on the acoustic characteristics of automotive turbocharger compressors were performed to investigate this acoustic transmission loss behavior. Two different rotor sizes were acoustically investigated considering approximately the same performance characteristics of the compressors. The investigated variants passed through two phases of measurements: The first phase was performed under ideal operating conditions involving a steady non-pulsating flow on an acoustic component test rig for turbochargers. Whereas the second phase was conducted under real engine operating conditions including pulsating flow of a modern 6-cylinder gasoline engine on an engine test rig. Comparisons between the two measurement phases show a considerable agreement between the two test rig setups for different operating conditions.

Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2017.
Keywords [en]
Acoustic measurements, Rotor acoustic losses, Turbocharger acoustics
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:kth:diva-212037Scopus ID: 2-s2.0-85043419957OAI: oai:DiVA.org:kth-212037DiVA, id: diva2:1133297
Conference
12th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2017, Quality Hotel GlobeStockholm, Sweden, 3 April 2017 through 7 April 2017
Note

QC 20170815

Available from: 2017-08-15 Created: 2017-08-15 Last updated: 2018-05-14Bibliographically approved

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  • vancouver
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  • de-DE
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  • Other locale
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