NDLI: Optimum Design and Experimental Study of a Very Low-Specific-Speed Centrifugal Blower Blade

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Shu, Xinwei Gu, Chuangang Wang, Tong Yang, Bo
Copyright Year	2009
Abstract	Low-specific-speed centrifugal blowers are widely used in industries for compressing gases to high pressures at low flows. They have relatively low manufacturing and operating cost. However, their efficiency is fairly low as a result of relatively high leakage, disc friction and passage friction pressure loss. The purpose of this paper is to show how the performances can be improved by properly reshaping its blade profile using a developed multipoint optimization approach. The core of this approach is to build an approximate model mapping the correlation between certain blade shape parameters and corresponding aerodynamic performances. The approach is implemented by the combining a blade parameterization code, a three-dimensional viscous flow solver and several improved numerical optimization algorithms. A very low-specific speed industrial centrifugal blower with parallel hub and shroud has been selected as a reference case. The superior performances of the optimized impeller blade are demonstrated by comparing the performance improvement with that of the original blade. This is then confirmed by experimental studies.
Sponsorship	International Gas Turbine Institute
Starting Page	545
Ending Page	553
Page Count	9
File Format	PDF
ISBN	9780791848883
DOI	10.1115/GT2009-59823
e-ISBN	9780791838495
Volume Number	Volume 7: Turbomachinery, Parts A and B
Conference Proceedings	ASME Turbo Expo 2009: Power for Land, Sea, and Air
Language	English
Publisher Date	2009-06-08
Publisher Place	Orlando, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Leakage Blades Optimization algorithms Flow (dynamics) Pressure Optimization Design Gases Friction Impellers Disks Manufacturing Shapes Viscous flow
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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