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maybe if gears are used like bycycle gears or something
any ideas please

2007-06-06 08:04:26 · 9 answers · asked by Anonymous in Science & Mathematics Engineering

9 answers

You know I wish you could do just that . I often posed the question to my students "what is the total energy loss in motor generator set? ". ( its a trick question because its a total loss..everthing used by the motor is gone and everything unused by the generator is lost) .
Sort of sounds just like your question only rearanged a bit. An MG set stands for motor/generator and why industry does it is to produce CLEAN dc current so they can control speed and direction of dc motors.So they build exactly what you said only bigger..much bigger
The Second Law of Conservation of Energy Says in so many words though ,that to do work it requires energy and so no matter how efficient you make the generator you cant get more energy out than you put in ..
Now someday when YOU find the secret to producing energy from fusion (combining two nuclei) you call me back and we'll both have a good laugh at my answer ... <|:) ....Good Luck from the E

2007-06-06 09:18:31 · answer #1 · answered by Edesigner 6 · 0 1

This is not possible for a number of reasons. First it violates the law of conservation of energy. You cannot input a certain amount of energy and get more energy (in this case electrical energy). This would be like pouring a cup of water into a different glass and having 2 cups end up there (energy is conserved the same way water is). Secondly in a real mechanical system energy is always lost in the form of heat due to friction in mechanical components and resistance in wires. In short if you run a motor and then a generator out of your wall socket you will end up with less use full energy than when you started because some will be dissipated as heat.

2007-06-06 17:48:19 · answer #2 · answered by Physiqueman 2 · 1 0

well, the idea itself would work, however, you would always be using slightly more power than you generate. even if you use a system of gears, the friction on the gears would always be just enough that you would still be losing more power than you are making.

your best bet for a practical home solution is to use either solar power, or wind power.

2007-06-06 15:18:44 · answer #3 · answered by swatthefly 5 · 0 0

you can however utilize a large inductive circuit to "chase the phase" of a live circuit that you are running anyway like a refridgerator and use this small current to drive another device (a very small device mind you.)

at this time not really cost effective or everyone and his buddy would be using inductive current lights to grow pot in closets or something.

2007-06-06 16:09:13 · answer #4 · answered by johnjohnwuzhere 3 · 0 0

That motor creates heat and mechanical energy then converted to electrical, each will take steal effeciency.... It takes energy to make energy. It will always diminishing returns..

2007-06-08 16:45:18 · answer #5 · answered by littledzl 2 · 0 0

Each time u go from electrical to mechanical u will loose about 40%.

2007-06-06 15:54:12 · answer #6 · answered by JOHNNIE B 7 · 0 0

no....the only way would be if the motor and generator were 100% efficient which they are not.....you can't get something for nothing...

2007-06-06 15:12:08 · answer #7 · answered by Stop Sine 3 · 0 0

Sure but because of inefficiencies, you get out less power than you put in.

2007-06-06 15:10:46 · answer #8 · answered by Gene 7 · 0 0

NO

2007-06-06 17:39:05 · answer #9 · answered by Jeffrey S 6 · 0 0

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