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Comparison of Measurements on Axial Fans and Performance Prediction Using Common Scale-Up Methods at Part- and Overload

Hess, Michael ; Pelz, Peter F. (2022)
Comparison of Measurements on Axial Fans and Performance Prediction Using Common Scale-Up Methods at Part- and Overload.
ASME Fluids Engineering Division Summer Meeting. Vail, Colorado, USA (02.-06.08.2009)
doi: 10.26083/tuprints-00020951
Konferenzveröffentlichung, Zweitveröffentlichung, Postprint

Kurzbeschreibung (Abstract)

There is a need to reliably predict the performance (efficiency and total pressure rise) of axial fans from model tests not only at the design point but also at part- and overload. The commonly used scale-up formulae give satisfactorily results only near the design point where inertia losses are small in comparison with frictional losses. At part- and overload the inertia losses are dominant and the scale-up formulae so far used fail. This is shown by applying several common scale-up methods in comparison to measured values of two axial model fans with a diameter of 1000 mm respectively 250 mm at different rotational speeds, hence Reynolds-numbers. In addition efficiency split-up for axial fans is shown and compared to former measurements on pumps.

Typ des Eintrags: Konferenzveröffentlichung
Erschienen: 2022
Autor(en): Hess, Michael ; Pelz, Peter F.
Art des Eintrags: Zweitveröffentlichung
Titel: Comparison of Measurements on Axial Fans and Performance Prediction Using Common Scale-Up Methods at Part- and Overload
Sprache: Englisch
Publikationsjahr: 2022
Ort: Darmstadt
Verlag: ASME
Buchtitel: ASME 2009 Fluids Engineering Division Summer Meeting
Reihe: Fluids Engineering Division Summer Meeting
Band einer Reihe: 2
Kollation: 6 Seiten
Veranstaltungstitel: ASME Fluids Engineering Division Summer Meeting
Veranstaltungsort: Vail, Colorado, USA
Veranstaltungsdatum: 02.-06.08.2009
DOI: 10.26083/tuprints-00020951
URL / URN: https://tuprints.ulb.tu-darmstadt.de/20951
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Herkunft: Zweitveröffentlichungsservice
Kurzbeschreibung (Abstract):

There is a need to reliably predict the performance (efficiency and total pressure rise) of axial fans from model tests not only at the design point but also at part- and overload. The commonly used scale-up formulae give satisfactorily results only near the design point where inertia losses are small in comparison with frictional losses. At part- and overload the inertia losses are dominant and the scale-up formulae so far used fail. This is shown by applying several common scale-up methods in comparison to measured values of two axial model fans with a diameter of 1000 mm respectively 250 mm at different rotational speeds, hence Reynolds-numbers. In addition efficiency split-up for axial fans is shown and compared to former measurements on pumps.

Status: Postprint
URN: urn:nbn:de:tuda-tuprints-209511
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Institut für Fluidsystemtechnik (FST) (seit 01.10.2006)
Hinterlegungsdatum: 09 Mai 2022 11:10
Letzte Änderung: 10 Mai 2022 05:33
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