System matched 3D radial impeller design with variable inlet angle distributions

Semel M, Smith H, Epple P, Litfin O, Delgado A, Pfannschmidt K, Grobeis D (2012)

Publication Type: Conference contribution

Publication year: 2012

Edited Volumes: Proceedings of the ASME Turbo Expo

Book Volume: 3

Pages Range: 795-802

Conference Proceedings Title: Proceedings of ASME Turbo Expo 2012

Event location: Kopenhagen, Dänemark DK

ISBN: 9780791844694

URI: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1694340

DOI: 10.1115/GT2012-70024

Abstract

In vacuum cleaners radial impellers with high rotational speed are very often used. A high rotational speed is connected with a best efficiency point of the radial impeller at a high flow rate. This is contrary to the working point of the whole system. Thus there is need for a radial impeller designs having a high efficiency at low flow rates under the restriction of a high rotational speed. One important parameter connected to the hydraulic efficiency characteristics of the radial impeller is the blade inflow angle b1. In order to shift the best efficiency point towards lower flow rates radial impellers with double curved blades and a linear b1 distribution were designed and CFD simulations were done in order to investigate the effect of this approach. A linear variation of the inflow angle b1 enables the designer to shift the efficiency characteristics of the impeller towards lower flow rates with a gain in hydraulic efficiency and pressure increase. Copyright © 2012 by ASME.

Authors with CRIS profile

Matthias Semel Lehrstuhl für Strömungsmechanik Philipp Epple Lehrstuhl für Strömungsmechanik Oliver Litfin Lehrstuhl für Strömungsmechanik Antonio Delgado Lehrstuhl für Strömungsmechanik

How to cite

APA:

Semel, M., Smith, H., Epple, P., Litfin, O., Delgado, A., Pfannschmidt, K., & Grobeis, D. (2012). System matched 3D radial impeller design with variable inlet angle distributions. In Proceedings of ASME Turbo Expo 2012 (pp. 795-802). Kopenhagen, Dänemark, DK.

MLA:

Semel, Matthias, et al. "System matched 3D radial impeller design with variable inlet angle distributions." Proceedings of the Turbine Technical Conference & Exposition (ASME Turbo Expo), Kopenhagen, Dänemark 2012. 795-802.

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