DIY Energy

Mimas-Hendrik

2009-07-09T12:34:00.002+01:00

Introduction - Here is our windmill

Conclusion - It made a lot of noise but not too much electricity!

What would you like to ask a power expert about this experiment?

Mimas_colin

2009-07-09T12:42:00.001+01:00

Kevin063

2009-07-09T11:40:00.001+01:00

Introduction - This is my new windmill desing

Prediction - I think it is going to do great

Conclusion - It fell off in a strong wind

Evaluation - I need some stronger glue!

What would you like to ask a power expert about this experiment? Yep, how many blades should I use?

13VCT

2008-10-01T14:48:00.000+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?
green and purple windmill
14.3 15.9 17.9mA

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

9GOS

2008-10-01T14:38:00.004+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?
paper plate design with coloured lining

4.7 6.6 9.9 mA

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

8SA

2008-10-01T14:38:00.003+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?
Orange windmill
maximum current value is 0

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

10CAD

2008-10-01T14:39:00.003+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?

red and white design didn't move,
red and yellow design: 8.4 mA 10mA 11.1 mA

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

12EAJ

2008-10-01T14:40:00.001+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?
design is paper plates with red cones attached to end fins

average current reading is: 4.4 mA, then on highest fan 9 mA

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

11LRS

2008-10-01T14:39:00.002+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

2GCA

2008-09-26T19:21:00.003+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?
the two tone red and blue windmill we made in second lesson:

maximum current value: 4.2, 7.5, 8.6 then 9 mA on highest wind setting

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

3RJN

2008-09-26T19:22:00.006+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?
yellow and orange paper design, highest current reading is 3.7 mA

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

5FLL

2008-09-26T19:23:00.008+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?
With our pink redesign of turbine, current is 2.6, then 6.6 mA

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

7JAG

2008-09-26T19:23:00.007+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?
we changed our design... 0.2 mA highest current

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

1MIE

2008-09-26T19:20:00.002+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?
Long arms make it heavy, max current reading is 0 mA
this is why scientists test their work

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

4JTL

2008-09-26T19:22:00.004+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?

yellow one made in second lesson, max current is 0 mA

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

6CFC

2008-09-26T19:23:00.006+01:00

Introduction - what were you investigating?

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

Conclusion - What did you discover?

maximum current readings on each fan setting: 0 mA

Evaluation - How would you improve your windmill design if you were doing this experiment again?

What would you like to ask a power expert about this experiment?

6ckr

2008-06-12T14:51:00.004+01:00

From group's reports:
Introduction - what were you investigating?

a)
b) How much energy you can make using a miniature windmill model

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?

a)
b) No because we didn't get to finish and it was weak

Conclusion - What did you discover?

a)
b) That you have to work hard to get a good result

Evaluation - How would you improve your windmill design if you were doing this experiment again?

a)
b) Don't work your friends and you will inprove

What would you like to ask a power expert about this experiment?

a)
b) That they did a good job.

1hss

2008-06-12T14:48:00.003+01:00

Introduction - what were you investigating?
Windmills

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?
No I dont think it will because we diddont have time to finish it

Conclusion - What did you discover?
Our windmill diddont work

Evaluation - How would you improve your windmill design if you were doing this experiment again?
Maybe just focus on the whole thing not just little details

What would you like to ask a power expert about this experiment?
How do you make a wind meal that looks nice and works in the time you are given?

Click comments below for answers

3cbl

2008-06-12T14:49:00.008+01:00

Taken from group's reports:
Introduction - what were you investigating?
a) How wind be turned into power
b) can our wind terbines can provide enough to power a ipod
c) Can our wind terbines can produce enough energy to charge an ipod for an hour

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?
a) Yes
b) No because our V was 0.0 and our mA was 0.0 because it didn't move
c) No because our V was 0.0 and our mA was 0.0 because it didn't move

Conclusion - What did you discover?
a) We couldn't couldn't create enough energy to power anything
b) The closer the fan the faster it is
c) The closer the fan the faster it is

Evaluation - How would you improve your windmill design if you were doing this experiment again?
a) We would add more objects for more wind resistance
b) More blades to make more our resistance
c) More blades on it to make more our resistance

What would you like to ask a power expert about this experiment?
a) why ours wouldn't move?!

Click comments below for answers

2kdj

2008-06-12T14:49:00.007+01:00

Introduction - what were you investigating?
a) We were investigating how to conduct electrisity from wind turbines, and which one could produce the most
b) we were investigating how to make electricity from wind turbine that we made from paper, sticks and cardboard to see which windmills made the most volts or milliampas
c) we were investigating to see how much electricity our windmill can use

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?
a) No I don't think it will be fully charged within 10 minutes. I think if we had a little longer then it possibly would be charged.
b) No. I don't think that it will power it for a hour in ten minutes it would need more time.

Conclusion - What did you discover?
a) That wind turbines produce a lot more energy than I thorght
b) Wind turbines makes lots of energy

Evaluation - How would you improve your windmill design if you were doing this experiment again?
a) I would make it a bit bigger
b) I would make it smaller

What would you like to ask a power expert about this experiment?

5rjg

2008-06-12T14:50:00.008+01:00

Introduction - what were you investigating?
a) How to make a wind powered generator
b) How much power we could make using a windmill we made

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?
a) Yes

Conclusion - What did you discover?
a) That the smaller the turbine the more energy
b) Our fan made 0.88 volts and 8.4 mA

Evaluation - How would you improve your windmill design if you were doing this experiment again?
a) To make it smaller
b) Made it smaller

What would you like to ask a power expert about this experiment?
a) What other things can be charged by wind?
b) What shape would the perfect windmill be?

Click comments below for answers

4gem

2008-06-12T14:50:00.007+01:00

Introduction - what were you investigating?
a) How to make a fan that produces enough energy to charge a ipod
b) Which make fan makes the highest volts and milliamp
c) Which home made fan can produce the most energy
d) Which designs materials etc. could produce a wind turbine that produces the highest wattage

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?
a) No because the shape was bad
b) no
c) No
d) Probably not - our fan produced very little miliampsand voltage as a result this produced very little wattage

Conclusion - What did you discover?
a) Paper plate work well : )
b) Make the fan simple and easy
c) That you need a small fan for the most power
d) It is very difficult to make a wind turbine capable of producing enough energy out of paper. Industrial wind turbines are much more capable

Evaluation - How would you improve your windmill design if you were doing this experiment again?
a) Use a paper plate
b) Make it more simple
c) make it smaller
d) Probably support the fan more and give it a larger surface area

What would you like to ask a power expert about this experiment?
a) nothing
b) an easer whay to do it
c) how to make ours the best
d) No- I'm not amazingly interested in this field and I really wouldn't want to

Click comments below for answers

7rcs

2008-06-12T14:52:00.006+01:00

Introduction - what were you investigating?
a) windmills
b) wind mills
c) We were investigating how we can power an ipod with mini windmills
d) How we could power an iPod

Prediction - will your design produce enough energy to charge an iPod for an hour in the 10 minutes you have?
a) No
b) probably not!

Conclusion - What did you discover?
a) That can work
b) We can't power a ipod for an hour
c) We discovered that the smaller and less heavy spin the most
d) That our windmill was the best design

Evaluation - How would you improve your windmill design if you were doing this experiment again?
a) Make it lighter
b) make it a bit lighter!
c) We don't need too we won anyway
d) We would make it smaller

What would you like to ask a power expert about this experiment?
a) Does it really work?
b) Nothing
c) What made our design the best?
d) What made our design win?

Click comments below for answers

MC1503, HSb1503

2008-03-15T16:30:00.000Z

Our Design
A combination of two windmills, one from paper plates and one from orange card in classic beach windmill design

Our Experiment
We tried these two connected in series and parallel. We got enough power to run the radio, even with just the small fan blowing!

Results

Reading 1 Current [ 15] mA
Reading 2 Current [ 14.5] mA

Average Current = [14.75 ] mA
Windspeed at fan = [s ] ms-1
Resistance = [100 ] Ohms
Power = I * I * R (remember to convert mA to A) 0.02176

So with a windspeed of [s ] our turbine generates an average current of [14.75 ] mA delivering [21.76 ] mW so in 10 minutes it could generate [21.76 * 600 = 13053 ] mW.

If playing music on an iPod classic consumes about 77mW per second, 10 minutes of turbine time (assuming 100% energy transfer efficiency) can power [ 169.5 ] seconds of playback time, enough to listen to about [ 0.9 ] 3 minute songs.

Thoughts
Want to add in more turbines to make a bigger wind farm.

HS1503

2008-03-15T16:03:00.000Z

Our Design
3 green card blades supported by sticks, but not very evenly spaced around the cork

Our Experiment
Collected some current readings and this one wasn't a great performer, but my second one was. It's the orange one in the wind farm trial. This green one wasn't well balanced.

Results
Reading 1 Current [ 3.2] mA
Reading 2 Current [ 6] mA
Reading 3 Current [ 3] mA
Reading 4 Current [ 4] mA
Average Current = [4.05 ] mA
Windspeed at fan = [s ] ms-1
Resistance = [100 ] Ohms
Power = I * I * R (remember to convert mA to A) 0.00164

So with a windspeed of [s ] our turbine generates an average current of [4.05 ] mA delivering [1.64 ] mW so in 10 minutes it could generate [1.64 * 600 = 984.2 ] mW.

If playing music on an iPod classic consumes about 77mW per second, 10 minutes of turbine time (assuming 100% energy transfer efficiency) can power [ 12.8 ] seconds of playback time, enough to listen to about [ 0.1 ] 3 minute songs.

Thoughts
this one was too heavy with the card, try with paper next