Design of a Double-Suction Fan Stage

Design Targets
Analysis of an existing double-suction fan stage including inlet ducts, connecting channels, impeller and volute and redesign of fan impeller for improved aerodynamic efficiency.

Deliverables
Redesigned impeller geometry.

Impact
The stage efficiency was improved by up to 4 points.

Double-Fan

Fig.1: 2D Streamline flow in the double suction fan stage

Fig.2: Normalised total to total efficiency of the fan stage

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