Power Dynamo
Monday, November 30th, 2009|
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PINK Pig Piggy Self-Powered Dynamo FOREVER Generator Flashlight LED Torch Light $3.69 |
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Dynamo Powered 3 LED Light..These are Nice Quality $1.99 |
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Hand-Powered Dynamo Rechargeable 3 LED Mini Flashlight $6.99 |
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Hand Power 2 LED Pig Flash Light Flashlight Wind-up Dynamo Torch Lamp Keychain $1.99 |
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Solar Power Dynamo Flashlight Torch + FM Radio +Charger $18.99 |
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2 in 1 Hybrid Solar Powered + Hand Cranked Dynamo Survival LED Flashlight $6.49 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch Yell $4.99 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch GG $4.99 |
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Dynamo Flashlight Wind Up 20 min power no batteries NEW $4.99 |
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Energy-saving Outdoor Hand Crank Dynamo Solar Power LED Flashlight Torch LG 5F $4.89 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch GG $4.99 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch Yell $4.99 |
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HIGH POWER LED SPOTLIGHT- HAND-CRANK DYNAMO RECHARGABLE + WALL & 12 VOLT CHARGER $19.99 |
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Solar Power Hand-Winding Crank Dynamo 4 LED Flashlight Torch +FM Radio +Charger $63.17 |
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10 x Hand-Powered Dynamo Rechargeable 3 LED Flashlight $22.99 |
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3 LED Solar Powered Hand Crank Dynamo Flashlight Torch $7.99 |
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Hand-Powered 3 LED Dynamo Flashlight #FL5052LL $5.75 |
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Dynamo 6″ Shake Powered Flashlight NO Batteries NEW! $2.99 |
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New Portable Hand Crank Dynamo Solar Power LED Flashlight Torch Lamp White Color $4.99 |
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Solar Power Dynamo Flashlight & FM Radio Mobile Charger $26.41 |
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Crank Hand Dynamo Solar Power Flashlight LED Lamp Oudoor Sports PortableTorch W $4.99 |
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Outdoor Hiking Camping Dynamo Hand Crank Solar Power LED Flashlight Torch Lamp E $4.99 |
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3 LED Flashlight Torch Dynamo Hand Crank Solar Powered $7.48 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch Pink $4.99 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch LG $4.99 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch Blak $4.99 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch LB $4.99 |
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Hand Power 2 LED Pig Flash Light Flashlight Wind-up Dynamo Torch Lamp Keychain $1.79 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch Pink $4.99 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch LB $4.99 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch Blak $4.99 |
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Hand Crank Dynamo Solar Power LED Flashlight Torch LG $4.99 |
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Portabe Lamp New Hand Crank Dynamo Solar Power LED Durable Flashlight Torch GG $4.98 |
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Durable Hand Crank Portable Dynamo Solar Power LED Flashlight Torch Lamp Yellow $4.98 |
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SOLAR Powered Hand Cranked Dynamo 2-Mode Flashlight $9.90 |
Power Dynamo
Dynamo power idea, Would this work…(10 points)?
Would it be possible to create a complex dynamo that charges Ni-MH batteries and then plug the batteries into a grid inverter. The batteries would be implemented to increase efficiency(without them, only when a certain power is attained would it be transferred. With batteries, all transmission is possible as it is built up). The dynamo would be much more powerful than typical dynamos and would be run by bike using an electric motor. (Any suggestions on size?) Also, Know where i can get some cogs? A good answer will get points
So you are going to charge batteries with a bicycle-driven dynamo and hook them to the AC power system through an inverter. Why? You have some rather costly equipment,and you will loose energy in each step. The dynamo will lose energy in friction, and both the batteries and the inverter will lose energy as heat. And, a world-class bicycler like Lance Armstrong can deliver a max of 400 watts (it doesn’t say for how long). Ni-MH batteries have a charge/discharge efficiency of about 66%, the inverter about 90% and a small generator about 93%. So that translates to about 55% of Lance’ s power delivered to the grid, about 200 watts, enough to run 2 100 watt light bulbs for let’s say an hour. Man are you tired after that!
The batteries are a cost in both efficiency and purchase price. Do you need them? The payback time would be large, if you ever paid it back. Think about it based on the fact that 1 kW-hour, about 5 times the 200 watt-hours this device produces per session, can be bought for 10 to 20 US cents. So your payback would be 2 – 4 cents per hour long biking session.
Ambient solar energy Muller Dynamo.ASF