Introduction
to Engineering and Technology
CCRI
ENGR-1020
Spring 2007
Team Members
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Starting Wind
Turbine –
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Improved Wind Turbine
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Turbine Open Circuit Voltage Test
Results
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Detail
description |
Detail Photo |
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The wind turbine
blades were first constructed. They
are each 16 inches long, they are mounting to a ½ inch circular piece of
plywood. We went with a 3 blade design
to increase efficiency while still being able to balance them. |
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The
material that was used to brace the coils is made of 3 mm plywood with an
outside diameter of 4.25". It’s made of two circular forms and
glued it together with two rectangular plywoods (length 1.5
inches). All the coils are secured with glue on each corner
of slotted plywood stator. |
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The turbine
rotor is on a brass rod that is 10.5 inches long. The magnets are mounted with glue to a piece
of pine cut in the shape of an octagon.
A diameter of 2 ¾ inches was selected to minimize the space between
the magnets and coils. The blades are
screwed on to the shaft to turn the magnets. |
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Two 4 inch diameter
PVC end caps were selected to enclose the magnets and coil. This was selected to create a water resistant
case for the magnets and coils. We
wanted it to be water tight in order to allow the turbine to be use outdoors. |
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All three of these pieces were combined to
make the turbine. |
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The yaw was
constructed for outdoor use. It is use
to keep the turbine in the direction of wind. It is 18 inches long. Also, braces
were added to the base of the yaw to aid in attaching the turbine to the
base. |
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A lazy susan
bearing was used to connect the turbine to the base. This was design to allow the turbine spin
freely in the wind. The bearing has a 4 inch diameter. |
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Last the turbine
was connected to a base. The base was
36 inches tall. It was connected to a
piece of plywood with L shape steel braces.
The plywood was 30” by 25”. |
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HORIZONTAL AXIS WIND TURBINE GENERATOR
BILL OF MATERIALS
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DESCRIPTION |
QUANTITY |
PRICE PER
QUANTITY |
TOTAL COST |
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PVC END CAP 4 INCHES
DIAMETER |
2 EA |
$ 6.76 |
$ 13.52 |
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CERAMIC MAGNETS |
8 EA |
$ 2.27 |
$ 22.00 |
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MAGNET WIRE 20 AWG |
½ SPOOL |
$ 15.00 |
$ 15.00 |
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PRECISION BEARING |
2 EA |
$ 12.50 |
$ 25.00 |
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PVC TUBING 7/8” |
2 EA |
$ 0 .19 |
$ 0.38 |
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BRASS ROD |
1 EA |
$ 2.79 |
$ 2.79 |
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POPLAR WOOD ¼” x 2” x 4” |
3 EA |
$ 1.25 |
$ 3.75 |
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PINE WOOD ¾” x 4” x 4” |
1 EA |
$ 1.00 |
$ 1.00 |
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3 MM BIRCH PLYWOOD |
3 EA |
$ 1.49 |
$ 4.47 |
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HEX NUTS |
10 EA |
$ 0.35 |
$ 3.50 |
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4-1/8 X 7 SS HOSE CLAMP |
1 EA |
$ 2.06 |
$ 2.06 |
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ELECTRICA L TAPE |
1 ROLL |
$ 1.25 |
$ 1.25 |
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WOOD GLUE |
1 TUBE |
$ 2.45 |
$ 2.45 |
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4”LAZY SUSAN TURN TABLE |
1 EA |
$ 3.14 |
$ 3.14 |
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WOOD SCREWS |
4 PK |
$ 0.98 |
$ 3.92 |
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RUBBER CEMENT |
1 CAN |
$ 4.59 |
$ 4.59 |
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WOOD PUTTY |
1 TUBE |
$ 1.97 |
$ 1.97 |
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¾” x ¾” x 2” PINE WOOD |
1 EA |
$ 1.15 |
$ 1.15 |
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2” x 4” x 4”PINE WOOD |
2 EA |
$ 4.00 |
$ 8.00 |
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¾” x 16” x 24” PARTICLE
BOARD |
1 EA |
$ 5.00 |
$ 5.00 |
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TOTAL |
$ 124.94 |
We positioned the
turbine on the floor 2 feet away from a fan that was control by a rheostat that
allowed us to vary the wind speed. We
used a hand-held anemometer to measure the speed of the wind. First, we found the cut in speed for the
turbine. Next, we look at the voltage
and frequency that the turbine was producing at the cut in speed. After that, we connected the load resistor
first the 200 ohms then we took the frequency and voltage. After that, we connected the 100 ohms
resistor and took the frequency and voltage.
We the repeated this produced increasing the wind speed 1 mph until we
reached the max out put for the fan which was 14.9 mph.
Turbine Open Circuit Voltage Test Results
Although the total power was not great, I was
happy with the turbine capabilities to carry a load. The power produced by the turbine fell into
predictable measurement calculated out before hand. Considering the amount of time and money
spent in producing the turbine, this design was far from practical use. More time and money must be spent on the
magnets, coils and increasing the size of the turbine. This would lead to a better total power
result.
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Victor Camaya 2 Taylor Court Middletown, RI 02842 401-619-1972 401-841-4030 |
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Objective |
Use professional imagination, judgment, integrity, and intellectual discipline in the application of science, technology, mathematics, and practical experience to design, produce, invent and operate useful objects to provide solutions to human problems and improve the quality of life. |
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Education |
Tabaco National HS – Technical Prep. Central Colleges of the Philippines – BS Electronics and Communications Engineering |
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Awards received |
None |
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Interests and activities |
Technical reading, solar power energy, boating, boat building, consumer electronics repair |
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Languages |
English, Filipino |
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Work experience |
United States Navy – Chief Electrician’s Mate United States Navy - Instructor Best Buy, Incorporated – Audio Video Technician Saipan Cable TV – Broadcast Technician/Bench Technician Tropic Isles Cable TV – Cable TV Installer Telmarc Corporation – Service Engineer Central College of Philippines – Instructor |
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Volunteer experience |
Saturday Scholars, City of Chicago, Reading Mentor |
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Hobbies |
Biking, sailing, woodworking, electronics |
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Community activities |
Rhode Island Special Olympics Sailing Regatta Volunteer |
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Professional memberships |
None |
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OLIVER LIBBY 1-401-952-4897 ohlibby1@ccri.edu |
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Objective |
Civil Engineer |
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Education |
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Awards received |
Dean’s List |
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Interests and activities |
Computer Technology |
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Languages |
English |
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Work experience |
Loews Hotels- Costumer service Feeney Corporation- Layout |
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Volunteer experience |
City Year |
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Hobbies |
Scuba Diving, Distance Running |
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Community Activities |
PADI diving Society |
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Brandon Ritchey (401)-624-6904 (401)-480-1657 bjritchey@ccri.edu |
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Objective |
Graduate college, possibly become electrical engineer |
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Education |
Graduate
of Currently Attending CCRI |
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Awards received |
Eagle Scout rank in BSA |
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Interests and activities |
Camping, video games, making electronics from kits or from scratch, roller coasters |
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Languages |
English |
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Work experience |
5 years with paper route, currently at McDonalds since March |
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Volunteer experience |
N/A |
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Professional memberships |
N/A |
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Accreditations and licenses |
N/A |