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Volute characteristics of centrifugal fan based on dynamic moment correction method

Volute characteristics of centrifugal fan based on dynamic moment correction method The multi-blade centrifugal fan features an abundance of vanes (>48) and a spiral volute. The flowability and noise characteristics of the centrifugal fan are dependent on the type-line of volute and tongue geometries at the volute exit. The aim of this research was to find a better volute type-line for fan noise reduction without compromising on the performance. First, the viscosity factors of gas were used to modify the type-line shape of the volute by introducing a dynamic moment correction coefficient; a modified volute was then obtained to match the new fan system. Next, the performance of the original fan and retrofit fan were tested. The optimization scheme was verified and the feasibility of the proposed numerical calculation technique was confirmed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy SAGE

Volute characteristics of centrifugal fan based on dynamic moment correction method

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Publisher
SAGE
Copyright
© IMechE 2018
ISSN
0957-6509
eISSN
2041-2967
DOI
10.1177/0957650918779856
Publisher site
See Article on Publisher Site

Abstract

The multi-blade centrifugal fan features an abundance of vanes (>48) and a spiral volute. The flowability and noise characteristics of the centrifugal fan are dependent on the type-line of volute and tongue geometries at the volute exit. The aim of this research was to find a better volute type-line for fan noise reduction without compromising on the performance. First, the viscosity factors of gas were used to modify the type-line shape of the volute by introducing a dynamic moment correction coefficient; a modified volute was then obtained to match the new fan system. Next, the performance of the original fan and retrofit fan were tested. The optimization scheme was verified and the feasibility of the proposed numerical calculation technique was confirmed.

Journal

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and EnergySAGE

Published: Mar 1, 2019

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