If I took an alternator out of a car and hooked to a 12 V car battery, then hooked up a electric motor (powered by the battery) to the alternator and had all three in a circle, would the battery have enough power to run the motor and would the motor have enough power and RPM's to run the alternator and charge the battery?
2006-06-29 08:56:24 · 6 answers · asked by Jeffrey A 2 in Science & Mathematics ➔ Engineering
The quick answer is no, if you could you'd have invented perpetual motion.
If the battery has a certain amount of stored energy, when it turns the motor some energy is lost (the motor will be about 80-90% efficient) with the same lost in the generator giving and approximate conversion of 60-80%.
The batteries themselves will also be inefficient in the charge discharge cycle, more so than the motor-generator combination although I haven't found a specific value. However, whenever you charge a battery it gets warm and this warmth is due to energy losses in the charge cycle.
Coupled to all of these would be electrical losses in the wiring, but these would be minimal compared to the other losses.
2006-06-29 12:18:40 · answer #1 · answered by Anonymous · 7⤊ 0⤋
You have a 200 gal. tank with 100 gal. of water in it.
Take a 5 gal. bucket and drill an 1/8" hole in the bottom.
Step 1. Fill the bucket from the tank.
Step 2. Take the bucket and walk around the edge of the yard.
Step 3. Dump the bucket back into the tank.
Step 4. Repeat from step 1.
How long until the tank is full?
_______________
Andre' B.
2006-06-29 10:11:39 · answer #2 · answered by Andre' B 2 · 0⤊ 0⤋
it is possible that all three parts would opperate, but the out come is that the battery would eventually discharge and end up flat . This is because of forces such as resitance and friction , it isn't possible to create a self perpetuating machine as it's not possible to get something or nothing .
2006-06-29 09:12:01 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Essentially doing energy conversation from system A to system B to system C back to system A. In an ideal world this would work, but unfortunately we live non-ideally and those system have an efficiency less than 100%
2006-06-29 09:37:40 · answer #4 · answered by cw 3 · 0⤊ 0⤋
Sorry it want work, to much friction and electical draw.
A closer and high tech way would be to use a battery- power converter- battery charger- battery !
2006-06-29 09:34:44 · answer #5 · answered by Shadetree 1 · 0⤊ 0⤋
how the hell do you look like howard stern?
2006-06-29 08:59:48 · answer #6 · answered by So and so 2 · 0⤊ 0⤋