Abstract

Mixed flow pumps have got a wide range of application such as that in irrigation, flood control, dewatering and power station cooling systems. A number of design templates have been in use to design the mixed flow pump impeller blades including free vortex theory and mean stream line theory. Here blade of the impeller of the mixed flow pump has been designed using Mean stream line theory and the free vortex theory and stresses arising due to static loading conditions has been obtained for both the cases. Comparison analysis for the equivalent stresses developed due to structural loading using various materials for the blade was undertaken. It was found that the stress for the blade designed using mean stream line theory is always on the higher side in comparison to that designed using free vortex theory. Further, out of the four materials of construction, titanium and copper were found to be suitable for blade designed using free vortex theory and the mean stream line theory respectively.

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