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3cbl videos on you tube |
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 |
3cbl
2kdj
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2kdj videos on you tube |
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? |
1hss
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1hss videos on you tube |
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 |
MC1503, HSb1503
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MC1503, HSb1503 videos on you tube |
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. |
AC1503
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AC1503 videos on you tube |
Our Design Paper plate and coctail sticks. Flower shape. Our Experiment Tried it with lots of different speeds, and fans. Results Reading 1 Current [10.5] mA Reading 2 Current [11.3] mA Reading 3 Current [11.7] mA Reading 4 Current [11.9] mA Average Current = [11.35] mA Windspeed at fan = [1.7] ms-1 Resistance = [100] Ohms Power = 0.01288w So with a windspeed of [1.7] our turbine generates an average current of [11.35] mA delivering [12.88]mw so in 10 minutes it could generate [12.88*600] 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 [100] seconds of playback time, enough to listen to about [0.6] 3 minute songs. Thoughts With more power, you should have less blades and more surface area. With less wind speed you might get more power than otherwise with more blades. |
HS1503
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HS1503 videos on you tube |
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 |
kh11010703
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kh11010703 videos on you tube |
Our Design s shaped yellow one Our Experiment we tried moving the generator to allow this one to rotate around a vertical (and horizontal) axis but it didn't want to turn Results we sadly didn't get any energy out of this one. Reading 1 Current [ ] mA Reading 2 Current [ ] mA Reading 3 Current [ ] mA Reading 4 Current [ ] mA Average Current = [I ] mA Windspeed at fan = [s ] ms-1 Resistance = [R ] Ohms Power = I * I * R (remember to convert mA to A) So with a windspeed of [s ] our turbine generates an average current of [I ] mA delivering [P ] (convert W to mW) mW per second so in 10 minutes it could generate [P * 600 ] 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 [ ? ] seconds of playback time, enough to listen to about [ ? ] 3 minute songs. Thoughts REPLACE THIS WITH YOUR THOUGHTS: HOW COULD YOUR WINDMILL BE IMPROVED, HOW COULD THE EXPERIMENT BE IMPROVED, IS 100% EFFICIENCY ENERGY TRANSFER REALISTIC, WHAT WOULD YOU ASK AN EXPERT, HOW CAN TECHNOLOGY SUPPORT SCIENCE TEACHING AND LEARNING, ETC... |
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