The Optimization of the Geometry of the Centrifugal Fan at Different Design Points

Author:

Ragauskas Paulius1,Tetsmann Ina1,Jasevičius Raimondas12ORCID

Affiliation:

1. Department of Mechanics and Materials Engineering, Vilnius Gediminas Technical University, Plytinės Str. 25, 10105 Vilnius, Lithuania

2. Institute of Mechanical Science, Vilnius Gediminas Technical University, Plytinės Str. 25, 10105 Vilnius, Lithuania

Abstract

The optimization of the geometry of a centrifugal fan is performed at maximum power and high-efficiency design points (DPs) to improve impeller efficiency. Two design variables defining the shape of fan blade are selected for the optimization. The optimal values of the geometry parameters of the impeller blades are identified by employing virtual flow simulations. The results of virtual experiments indicate the influence of the parameters of the blade geometry on its efficiency. With the optimization of impeller blade geometry, the efficiency of the fan is improved with respect to the reference model, as confirmed by comparing the performance curves. Herein, we discuss the results obtained in virtual tests by identifying the influence of DPs on the performance characteristics of centrifugal fans.

Publisher

MDPI AG

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