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Abstract
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Article Information:
Numerical Optimization of Impeller for Backward-Curved Centrifugal Fan by Response Surface Methodology (RSM)
Fannian Meng, Quanlin Dong, Yan Wang, Pengfei Wang and Chunxi Zhang
Corresponding Author: Fannian Meng
Submitted: December 20, 2012
Accepted: January 25, 2013
Published: August 05, 2013 |
Abstract:
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A numerical optimum study on three-dimensional unsteady viscous flow in a centrifugal fan with backward-curved blades was performed. The influence of the inlet angle, the outlet blade angle and blade number on aerodynamic performance of the centrifugal fan was analyzed concerning the whole impeller-volute configuration. Response Surface Methodology (RSM) based on a three-level, three -variable Box-Behnken Design (BBD) was used to evaluate the interactive effects of factors such as inlet blade angle (37°-41°), outlet blade angle (61°-65°) and number of blade (10-14) on the efficiency. The optimum factors deriving via RSM were: inlet blade angle 37°, outlet blade angle 61.7° and blade number 14. The maximum efficiency was 93.7%, under optimum conditions. The method of reliable CFD technique in combination with RSM can be effectively applied to the improvement and experiment design of centrifugal fans.
Key words: Centrifugal fan, CFD, impeller, numerical optimization, RSM, ,
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Cite this Reference:
Fannian Meng, Quanlin Dong, Yan Wang, Pengfei Wang and Chunxi Zhang, . Numerical Optimization of Impeller for Backward-Curved Centrifugal Fan by Response Surface Methodology (RSM). Research Journal of Applied Sciences, Engineering and Technology, (13): 2436-2442.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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