Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | ASME Turbo Expo 2010 |
| Untertitel | Power for Land, Sea, and Air, GT 2010 |
| Seiten | 391-401 |
| Seitenumfang | 11 |
| Publikationsstatus | Veröffentlicht - 22 Dez. 2010 |
| Veranstaltung | ASME Turbo Expo 2010: Power for Land, Sea, and Air, GT 2010 - Glasgow, Großbritannien / Vereinigtes Königreich Dauer: 14 Juni 2010 → 18 Juni 2010 |
Publikationsreihe
| Name | Proceedings of the ASME Turbo Expo |
|---|---|
| Band | 5 |
Abstract
The tip-leakage flow mechanisms in turbocharger turbines used for downsized internal combustion engines and the associated losses are investigated over a range of operating conditions. Experiments are performed on a small, 35 mm diameter turbocharger turbine with varying tip-gap heights in a turbocharger test facility and numerical simulations are presented for extending the parameter range to sizes not covered experimentally. The sensitivity of turbine efficiency to tip-gap is evaluated and correlations for the estimation of tip-leakage related loss of efficiency are developed. An optimum applicable tip-gap size for radial turbines is suggested. The results show that the magnitude of the tip-leakage losses, e.g. in downsizing turbocharger turbines, provides a high potential for their improvement.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Allgemeiner Maschinenbau
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ASME Turbo Expo 2010: Power for Land, Sea, and Air, GT 2010. 2010. S. 391-401 (Proceedings of the ASME Turbo Expo; Band 5).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Tip Leakage in Small Radial Turbines: Optimum Tip-Gap and Efficiency Loss Correlations
AU - Kammeyer, Jasper
AU - Natkaniec, Christoph
AU - Seume, Joerg R.
PY - 2010/12/22
Y1 - 2010/12/22
N2 - The tip-leakage flow mechanisms in turbocharger turbines used for downsized internal combustion engines and the associated losses are investigated over a range of operating conditions. Experiments are performed on a small, 35 mm diameter turbocharger turbine with varying tip-gap heights in a turbocharger test facility and numerical simulations are presented for extending the parameter range to sizes not covered experimentally. The sensitivity of turbine efficiency to tip-gap is evaluated and correlations for the estimation of tip-leakage related loss of efficiency are developed. An optimum applicable tip-gap size for radial turbines is suggested. The results show that the magnitude of the tip-leakage losses, e.g. in downsizing turbocharger turbines, provides a high potential for their improvement.
AB - The tip-leakage flow mechanisms in turbocharger turbines used for downsized internal combustion engines and the associated losses are investigated over a range of operating conditions. Experiments are performed on a small, 35 mm diameter turbocharger turbine with varying tip-gap heights in a turbocharger test facility and numerical simulations are presented for extending the parameter range to sizes not covered experimentally. The sensitivity of turbine efficiency to tip-gap is evaluated and correlations for the estimation of tip-leakage related loss of efficiency are developed. An optimum applicable tip-gap size for radial turbines is suggested. The results show that the magnitude of the tip-leakage losses, e.g. in downsizing turbocharger turbines, provides a high potential for their improvement.
UR - http://www.scopus.com/inward/record.url?scp=82055179338&partnerID=8YFLogxK
U2 - 10.1115/GT2010-22680
DO - 10.1115/GT2010-22680
M3 - Conference contribution
AN - SCOPUS:82055179338
SN - 9780791844007
T3 - Proceedings of the ASME Turbo Expo
SP - 391
EP - 401
BT - ASME Turbo Expo 2010
T2 - ASME Turbo Expo 2010: Power for Land, Sea, and Air, GT 2010
Y2 - 14 June 2010 through 18 June 2010
ER -