TEST!
VARI- FAN VS VARI-CYCLONE
These test were carried out by the Florida Solar Energy
Center, a research institute of the University
of Central Florida.
The test were conducted on the 5 blade Vari-Fan and the 3 blade
Vari-Cyclone, both operating at 24 vdc.
F.S.E.C. is currently testing the 4 blade Vari-Cyclone
we expect to post the results of these tests in late November or early December,
2002.
Ceiling Fan Test Results |
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Input Data |
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Measurement Location |
Velocity Measured (m/s) |
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(feet from center) |
Vari-Fan |
Vari-Cyclone | ||||||
0 |
0.790 |
1.700 |
||||||
0.5 |
1.010 |
1.640 |
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1 |
1.150 |
1.400 |
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1.5 |
0.930 |
0.910 |
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2 |
0.250 |
0.510 |
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2.5 |
0.220 |
0.130 |
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3 |
0.080 |
0.110 |
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3.5 |
0.110 |
0.090 |
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4 |
0.120 |
0.100 |
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4.5 |
0.060 |
0.100 |
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5 |
0.000 |
0.000 |
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5.5 |
0.000 |
0.000 |
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Results |
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Fan Type |
Vari-Fan |
Vari-Cyclone | ||||||
Average Velocity (m/s) |
0.39 |
0.56 |
||||||
Total CFM |
2664.6 |
3273.8 |
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Total Watts |
27.4 |
26.7 |
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Total CFM/Watts |
97.2 |
122.6 |
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Calculations
Test |
Area |
Differential Area |
Differential Area |
Flow |
Volume Flow |
Volume Flow |
Volume Flow |
Point |
(ft^2) |
(ft^2) |
(m^2) |
(m/s) |
(ft^3/min - CFM) |
(m^3/s) |
(ft^3/min - CFM) |
0 |
0.000 |
0.000 |
0.000 |
#REF! |
#REF! |
0.000 |
0.000 |
0.5 |
0.785 |
0.785 |
0.073 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
1 |
3.142 |
2.356 |
0.219 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
1.5 |
7.069 |
3.927 |
0.365 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
2 |
12.566 |
5.498 |
0.511 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
2.5 |
19.635 |
7.069 |
0.657 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
3 |
28.274 |
8.639 |
0.803 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
3.5 |
38.485 |
10.210 |
0.949 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
4 |
50.266 |
11.781 |
1.094 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
4.5 |
63.617 |
13.352 |
1.240 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
5 |
78.540 |
14.923 |
1.386 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
5.5 |
95.033 |
16.493 |
1.532 |
#REF! |
#REF! |
#DIV/0! |
#DIV/0! |
CFM--> |
#REF! |
#DIV/0! |
|||||
Watts--> |
73.8 |
35 |
|||||
CFM/W--> |
#REF! |
#DIV/0! |