Introduction to Engineering and TechnologyCCRI ENGR-1020

fall 2007

Wind Turbine Project

Team Members:

Member #1

Member #2

Member #3

Starting Wind Turbine –

Improved Wind Turbine

Turbine Construction Details

Turbine Costs

Turbine Test Procedures

Turbine Open Circuit Voltage Test Results

Turbine Power Curve

Conclusions

Turbine Construction Details

Detail description Detail Photo

Our first week starting on the pico-turbine we had ordered, two turbines, out of the web site www.picoturbine.com . Splitting the coasts of the original turbines between us. Once it arrived we successfully tested the picoturbine in its original concept, achieving a high power output.

Originally we tested the rpm’s and voltage with a powered fan to try and get our measurement for the original pico-turbine. But we did not reach the output we desired so we mounted the pico-turbine onto a drill press and maxed out the energy produced by the magnets.

Upgrading our Turbine’s magnets and coils, making them closer to acquire more OHMS. We also redesigned our Base support, making them thicker and wider to avoid rattle at top of the shaft.

Working together on the Turbine every Monday before class was part of our effort into pushing this project ahead. At these meetings we were able to upgrade as necessary and work on it at a house meeting.

When our team constructed a universal blade mount designed so that we could mount any blade type application. Our original Idea was a spiral type blade. Along the way we decided that it was too difficult to cut a spiral blade. Chris had made a back plan with horizontal blade made out PVC pipe. Omar’s Idea was a vertical PVC blade, using some of the backup Horizontal blades as mounting arms.

It looked good but there was too much wind resistance on the back side of the Blade Section and we hadn’t spent enough time balancing each section. At this point we had two test failures. We had to go back to the Backup Blade sections because of the time factor to complete the project.

After a few design changes we finally finished our project and were able to test it with a wind powered fan. To generate up to 9.33 volts at 377 rpm’s. Improving by up to 7 volts from our original pico turbine. We were able to show the public our accomplishments at the health and energy awareness fair. Were many people had questions on wind turbines. As a group we answered as many people as we could, and they were impressed

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Turbine Costs

Parts purchased

A.) Location------------------- Eastern Bearing -862 Eddy St. Providence Rhode Island Order Number 113028 - .250 shaft _______________________________________$3.24 Order Number Pebttr4 - 5/8 OD * .250____________________________________$6.79 each Tax________________________________________________________________$1.66

B.)Location------------------ Wal-mart J-19 saw blades_______________________________________________________$4.83 Spray paint__________________________________________________________$2.24 Super glue___________________________________________________________$4.48 Tax ________________________________________________________________.81

C.) Location---------------www.picoturbine.com 2 pico-turbines________________________________________________________$79.39

Total Coast_________________________________________________________$117.03

Turbine Test Procedures

Turbine Open Circuit Voltage Test Results

Pico turbine test improved turbine test

RPM VL RPM VL84 0.391 39 0.65 Cut in

120 0.645 58 1.33189 1.05 61 1.40250 1.4 84 1.87292 1.68 88 2.16360 2.16 125 3.06430 2.4 204 5.16471 2.7 236 7.59540 1.74 284 7.10607 1.86 377 9.33 Max output671 1.98724 2.13

0 100 200 300 400 500 600 700 8000

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9

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Pico turbine vs Improved turbine

Pico turbine test improved turbine test

Rotation RPM

DVM Voltage

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Turbine Power Curve

Picoturbine Generator VoltageStudent Team # 2    Procedure        1. Build PicoTurbine and test with LED2. Disconnect LED and Connect Fluke DVM3. Vary the RPM using the frequency as an indicator4. Record RPM, frequency and voltage5. Type over the RPM and MES sample data with actual.

NominalN - Number of loops of wire   2400A - Area enclosed by loop (m2)   0.000683 * Average P - Number of Magnetic poles   8B - Magnetic pole strength (Tesla)   0.1Z - Rotational velocity of magnets (cps) belowF - Frequency of Voltage (Hz)   belowNote: Z = RPM(measured) / 60  

Calculated No-Load rms Voltage

Vrms = 0.707 * N *A *P *B *Z

Nominal Measured

Calculated

Measured

Calculated

RPM RPM Z (cps)

Vrms-MES

(volts)Vrms-CAL

(volts)

70 39 0.65 0.65 0.603

90 58 0.966667 1.33 0.896

110 61 1.016667 1.4 0.943

130 84 1.4 1.87 1.298

150 88 1.466667 2.16 1.360

170 125 2.083333 3.06 1.932

190 204 3.4 5.16 3.152

210 218 3.633333 5.58 3.369

230 221 3.683333 5.67 3.415

250 236 3.933333 7.59 3.647

270 377 6.283333 9.33 5.825

290 400 6.666667 9.45 6.181

Conclusions

In our original idea we had wanted to create a wind turbine that caught air with many arms to catch the wind. It worked efficiently but we wanted to try and change the original idea to make the turbine caught more wind and rotate more, in terms making the wind turbine generate more power. When making the adjustments to the wind turbine it was true that it was catching more wind but at the same time the turbine was heavier, making the idea obsolete. Since our wind turbine was affectionately made we were able to return to the original idea without so much trouble. Testing the final product we were able to generate over 9 volts, making our turbine better than the original.

0 4 8 120.000

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3.000

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9.000

10.000

Picoturbine Generator Voltage

Vrms-CAL (volts)

Rotation - cps

RM

S Vo

ltage

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Member-1

Brian Hernandez

3 Hendricks St. Central Falls R.I 02863Home phone: 401-722-0240Work phone: 401-663-5490

Bahernandez@ccri.edu

Avionics Mechanic

Objective Mechanical engineer, Avionic pilot

EducationCentral Falls senior high school

Community collage of Rhode Island

Virginia avionics logistics school

Basic combat training

Awards received Military achievement award, AFPT award,

Interests and activities [Soccer, computers, music, art, technology, boxing]

Languages English, Fluent Spanish

Work experience6 years full time at a mechanic shop, fixing cars, 2 years in the army, as an avionics mechanic, many part time jobs, at clothing stores, and a customer representative at a big photo shop studio.

Volunteer experience Cleaning the city voluntarily, helping build up gardens and parks for kids, Reading to children in pre-school.

Professional memberships

Accreditations and licenses

FCC license, Ac license, basic combat training certificate

Member-2

Christie H. Stone

86 Foster Center RoadFoster Center Road401-397-9242401-487-0885

CHStonie@ aol.com

Objective Seeking a management position in which to apply strong supervisory and technical skills to increase productivity and quality and improve the working environment.

Education CCRI First semester ASS in Mechanical Engineering

Graduate of Control Circuits/Wiring Schematics course

TQM Training Workshop

Six Sigma Process Improvement Training (Worcester Polytech Institute)

Completed Ploy-Flex PLC Training

Family Married 33 years, 4 Sons, 5 Grandchildren

Interests and activities

Family, mechanical technology, computer technology, football, hiking, camping, cooking, automobile racing, billiards

Languages English

Work experience1994 - 2007 Parlex Corporation Cranston, RIEngineering Technician Supervised relocation project- moving Cranston Operation to Methuen MA. Maintained and operated equipment, trained operators, developed streamlined maintenance

records, monitored prototypes and maintaining operating supplies and spare parts Trained manager ISO and QS 9000.

Volunteerexperience

Member of the Foster Lion’s Club, including two terms as President and two terms as Secretary. Member of the Foster Old Home Days Committee Assistant Scout Master BSA Troop 101 Foster Member of the Foster Republican Town Committee

Accreditations and licenses

Class 2 Drivers License. Pesticide License, Fork Lift License

Member-3

Omar Abreu

524 Gallatin street 3rd floorProvidence, RI 02907(401) 499-6396(401) 490-2296Orabreu@ccri.edu

Objective Civil Engineering

EducationTheodore Roosevelt High School

New England Technical Institute

Awards received Carpentry

Interests and activities Technology, Music and Business

Languages Spanish and English

Work experienceCarpenter and Sales Representative

Volunteer experience Helped the poor for a Church 5 years ago

Professional memberships

Accreditations and licenses

General Contractor and Lead Abatement Supervisor