Introduction to Engineering and Technology
CCRI ENGR-1020
Fall 2007
Wind Turbine Project
Team Members
Turbine
Open Circuit Voltage Test Results
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Detail description |
Detail Photo |
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Our group constructed and successfully tested the
Picoturbine in its original form. Our group was the only group with the best
power curve from the data results. |
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We decided to use the same structure-like design,
but different blades as well as material. We used the same magnets and coils
but we just doubled them for the improved turbine. |
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The base for our turbine is a wooden circular base.
We used the seat of a stool for our base. The side supporters’ and the turner
for our turbine were wooden as well. We decided to use wood for the side
supporters’ because they are sturdier. The supporters’ were screwed into the
side of the wooden circular base. |
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Our blades were made from poster board material and
designed to look tornado-like when constructed and built. For the base for
the blades, we used foam core material because it was light and sturdy. |
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For the magnets, we super-glued the 8 magnets on
the foam core in a circular fashion, along the edge of the foam core base. We
then wrapped electrical tape around the magnets to hold them in place so that
they would not fly outwards. |
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We then taped the 8 coils to metal brackets. The
metal brackets were then screwed onto the wooden base in a circular fashion. |
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2 Picoturbine kits $70.00
1 Poster Board $02.00
2 Packs of metal brackets w/screws $04.00
1 Roll of Double-Sided tape $06.00
1 Wooden Turner $01.00
$83.00
1. Measure the generator resistance with the digital
voltmeter (DVM).
2. Place a small piece of reflective tape to a dark
surface of the turbine.
3. Connect the DVM to the turbine output leads.
4. Connect one side of the resistor load to the DVM
common (black).
5. Start the fan and adjust the speed and position
for the minimum turbine output (must have AC signal).
6. Record the minimum and maximum wind speed.
7. Record the average RPM, DVM voltage and DVM
frequency for each load condition.
8. Increase the wind speed for the next target speed
and record data.
9. Repeat the procedure until the maximum wind speed
is obtained.
10. Turn in the Team data sheet to the instructor for
copying.
Turbine
Open Circuit Voltage Test Results
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Turbine Test Data |
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Team Members |
Karlia Kue |
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Turbine Parameters |
Nominal |
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Curtis Chin |
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N - Number of loops of wire |
2400 |
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Alex Dimeo |
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A - Area enclosed by |
0.001296 |
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P - Number of Magnetic Poles |
8 |
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B - Magnetic pole strength (Tesla) |
0.1 |
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PT = (VL2 / RL)
(1 + RG / RL) |
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RG = |
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RL = open |
RL1 |
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RL2 |
= |
calculated power |
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Target Wind |
Low Wind |
Low Wind |
Avg Wind |
Avg Tach |
DVM volts |
DVM Freq |
Avg Tach |
DVM Freq |
Avg Tach |
DVM Freq |
DVM (mw) |
DVM (mw) |
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2.0 |
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4.0 |
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5.0 |
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6.0 |
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7.0 |
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8.0 |
8.4 |
8.9 |
8.65 |
91 |
0.6081 |
3.26 |
87 |
0.5392 |
3.3 |
80 |
0.4497 |
3.45 |
3.405048 |
6.862422 |
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9.0 |
9 |
9.2 |
9.1 |
109 |
1.0733 |
5.03 |
89 |
0.5586 |
3.36 |
81 |
0.7106 |
5.15 |
3.527559 |
10.84376 |
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10.0 |
9.9 |
10.3 |
10.1 |
112 |
1.5727 |
6.9 |
93 |
1.0829 |
6.09 |
85 |
0.7712 |
5.32 |
6.838514 |
11.76851 |