Does your car alternator always draw the same amount of power when running?
Wednesday, February 24th, 2010 at
6:32 am
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connor014 asked:
I have seen things online about hydrogen electrolysis which is powered by your battery. The hydroxy gas that would be produced in electrolysis is then fed into your engine claiming to improve mpg. My only thought with this is that the power to run the electrolysis would be about 14v at 10-15amps. Does your car’s alternator always pump out juice when the engine is running or is there some control/clutch device that will stop it from pumping out juice when the battery is full? The hydroxy gas idea seems to be good if your alternator is always pumping out power when it would be wasted anyways, otherwise I think it takes more power to produce the hydroxy gas than what you get as far as in mpg increases. Any thoughts?
Arden
I have seen things online about hydrogen electrolysis which is powered by your battery. The hydroxy gas that would be produced in electrolysis is then fed into your engine claiming to improve mpg. My only thought with this is that the power to run the electrolysis would be about 14v at 10-15amps. Does your car’s alternator always pump out juice when the engine is running or is there some control/clutch device that will stop it from pumping out juice when the battery is full? The hydroxy gas idea seems to be good if your alternator is always pumping out power when it would be wasted anyways, otherwise I think it takes more power to produce the hydroxy gas than what you get as far as in mpg increases. Any thoughts?
Arden
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Tagged with: Car Alternator • Clutch • Hydrogen Electrolysis • Running
Filed under: Drawing Cars
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Carmela
The power out of the alternator is dependant on the RPMs of the engine, but it will also (electronically) shut off when the battery is fully charged. The electronic switch is a built-in voltage regulator. This doesn’t happen as often as you would think, because most of the automobiles made today have LOTs of electronic gear that needs lots of juice, so that keeps the alternator ‘busy’ constantly.
As for your idea — the hydrogen generator would be just like another ‘accessory’ to your car. You could hook it up to the main power bus, put a fuse on it, and it would run just fine. Even though it is rated for 14 volts, it will probably still run OK at 13 or even 12 volts.
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Simonne
The short answer is that a system that generates hydrogen by electrolysis so that the hydrogen can be burned will never be 100% efficient. It will take more gasoline to produce the hydrogen than you will save by burning the hydrogen in your car.
With regard to the alternator it does produce a voltage when ever it is turning; however, the car and battery will only draw current as needed. The power used by the electrical system is current times voltage. When the current is low the power is low. The bottom line here is that the alternator can produce a voltage even when it is not needed but there will be little power involved unless the car is actually drawing current. As more current is drawn from the alternator it takes more mechanical power on the shaft to drive it. The hydrogen would be produced from extra power (more gasoline) not otherwise wasted power in this system.
Perhaps if one could use regenerative brakes some power could be gained but I doubt it would be efficient enough to justify the cost. The alternator could not be used as a brake. One would need a higher current higher power generator for effective braking.
Dulce
As mentioned, your alternator provides power dependent on the load connected to it and uses more power (gasoline) to provide it.
The electrolysis rip off will load up your alternator and require more gas to provide it. The net result will be a loss. I am still amazed that the media report this garbage without researching it.