Analysis of Radial-Flow Impellers of Different Configurations.
Analysis of Radial-Flow Impellers of Different Configurations.
Analysis of Radial-Flow Impellers of Different Configurations.
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Since the aim <strong>of</strong> this work is to evaluate<br />
performance <strong>of</strong> blowers <strong>of</strong> different impeller/vane<br />
pr<strong>of</strong>iles, seven different possibilities <strong>of</strong> impeller<br />
designs were explored. They all had same baseplate<br />
dimensions without guiding vanes. These<br />
include<br />
1. Backward-Curved-Vane Open Impeller<br />
2. Forward-Curved-Vane Open Impeller<br />
3. Backward-Curved-Vane Closed Impeller<br />
4. Forward-Curved-Vane Closed Impeller<br />
5. Backward-Inclined-Vane Open Impeller<br />
6. Forward-Inclined-Vane Open Impeller<br />
7. <strong>Radial</strong>-Vane Open Impeller<br />
(See Plates 1 – 4)<br />
Two volute casings were constructed to allow for<br />
clockwise and anticlockwise rotation <strong>of</strong> the<br />
impellers (Figures 3 – 6 and Plates 5 – 6). Each<br />
<strong>of</strong> the impellers was subjected to dynamic<br />
balancing (Plate 7) where out-<strong>of</strong>-balance mass<br />
was added to ensure stability and minimize<br />
vibration (Plate 8).<br />
Plate 1: Forward-Inclined Impeller under<br />
Construction.<br />
Plate 2: Backward Curved Impeller under<br />
Construction.<br />
Plate 3: <strong>Radial</strong> Impeller under Construction.<br />
Plate 4: Newly Constructed Backward Curved<br />
Closed Impeller.<br />
The Pacific Journal <strong>of</strong> Science and Technology –27–<br />
http://www.akamaiuniversity.us/PJST.htm Volume 13. Number 1. May 2012 (Spring)
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