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Automated aerodynamic optimization of a return channel vane of a multistage radial compressor

Reutter, Oliver and Hildebrandt, Andre and Jakiel , Christian and Raitor, Till and Voss, Christian (2011) Automated aerodynamic optimization of a return channel vane of a multistage radial compressor. In: Conference Proceedings of the 9th ETC, 2, pp. 1507-1516. 9th European Conference on Turbomachinary, ETC 2011, 21.-25.März 2011, Istanbul, Türkei. ISBN 978-975-561-391-8.

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Abstract

This paper presents the design process of a new return channel system for a single shaft centrifugal compressors comprising multiple stages. The first part of the paper gives an overview on aerodynamic features of common return channel systems used in process industry relevant radial turbomachinery. The problem of vortex free outlet flow downstream the return channel is discussed in detail. The main part focuses on the design process and development of a new return channel system and presents the methodology of optimization. The optimization procedure includes the geometry generation of the return channel vanes, meshing, CFD-calculations (Computational Fluid Dynamics) and automated evaluation. A genetic algorithm is used to control the optimization process and to generate progress. The optimization goals are both the enhancement of design point efficiency and minimization of the deviation of averaged outflow angle. In order to preserve the compressor operating range, two additional operating points (towards choke line and surge line) are considered for optimization. Calculation results of optimization show that the new return channel vane provides a higher stage efficiency and a reduced outlet flow angle distortion.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Automated aerodynamic optimization of a return channel vane of a multistage radial compressor
Authors:
AuthorsInstitution or Email of Authors
Reutter, Oliveroliver.reutter@dlr.de
Hildebrandt, AndreMAN Turbo
Jakiel , ChristianMAN Turbo
Raitor, Tilltill.raitor@dlr.de
Voss, Christianchristian.voss@dlr.de
Date:24 March 2011
Journal or Publication Title:Conference Proceedings of the 9th ETC
Refereed publication:Yes
In ISI Web of Science:No
Volume:2
Page Range:pp. 1507-1516
Editors:
EditorsEmail
Sen, M.Istanbul (TR)
Bois, G.Lille (F)
Manna, M.Manna (I)
Arts, T.Rhode-Saint-Genese (B)
ISBN:978-975-561-391-8
Status:Published
Keywords:Radialverdichter, AutoOpti, Rückführkanal, radial compressor, return channel vane
Event Title:9th European Conference on Turbomachinary, ETC 2011
Event Location:Istanbul, Türkei
Event Type:international Conference
Event Dates:21.-25.März 2011
Organizer:Istanbul Technical University and The European Organising Committee
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Fan and Compressor Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Fan and Compressor
Deposited By: Oliver Reutter
Deposited On:05 Dec 2011 07:53
Last Modified:05 Dec 2011 07:53

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