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Impeller: HE-3 |
Impeller image courtesy of Chemineer |
The HE-3 or HE3 is a patented impeller by Chemineer. It has 3 blades and is called
by Chemineer a high-efficiency impeller. It is considered an axial flow impeller, because
under turbulent conditions the discharge of the fluid is parallel to the shaft (0 degrees).
Turbulent Power Number Np=0.22
and Flow Number Nq=0.47 for D/T=0.4
|
Re |
Np |
Nq |
Theta N |
Notes
(table values valid for D/T = 0.4) |
100 |
.67 |
.293 |
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(theta N) needs to be calculated from the data |
300 |
.39 |
.346 |
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1000 |
.30 |
.407 |
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3000 |
.27 |
.444 |
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10000 |
.26 |
.466 |
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100000 |
.24 |
.474 |
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turbulent |
.22 |
.472 |
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There is much more data on several impeller types in this article, and this page will
be updated.
Reference: The data above was extrapolated from graphs in the reference and is valid
for D/T=0.4. The reference includes data for D/T=0.2, 0.3, 0.4, and 0.5, with OB/T=1/3.
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