Quote:
Originally Posted by **********
You know, A Car that runs on water isn't impossible..
Anyone ever do electrolosis experiments in school?
You take a plastic bucket of water, and 2 empty jars. Place the jars in the water to fill them up, and then turn them upside down while keeping them in the bucket.
Attach a wire to the positive pole of a car batter and insert the other end, stripped, into the first jar. Attach another wire to the negative pole and insert the other end, stripped, into the other jar.
After a few seconds, bubbles appear on the wire tips of both wires inside each jar, and float to the top. One wire is producing Hydrogen Gas, while the other is producing Oxygen. (H2O). The more voltage you have, the faster the jars will fill.
When the jars are about half filled with gas (the gas will push the water out), reverse the polarity. You are now inserting Oxygen into the Hydrogen jar, and Hydrogen into the Oxygen jar).
WHen the jar is just about empty of water, light a match, and slowly lift one of the jars out. Bring the match to the mouth of the jar and WHAP! A mini explosiion of Hydrogen and Oxygen.
If you had enough voltage and mechanics, you could make your own fuel out of water. Simple chemistry!
|
The problem is .....
If you need some (external) voltage + water to produce hydrogen through electroylsis, then it's not a water car. It's a "water + a little external energy (voltage)" car. And where do you get that external voltage from in a mobile vehicle? You cant get it from the water. That would violate the laws of thermodynamics.
You could keep a battery on the car, to provide the external voltage, but then you will have to occasionally recharge the battery. And instead of a "battery + water" hydrogen car, why not simplify it and make it purely electric (battery only + electric motor)??
You can generate hydrogen or electricty from a complex fuel cell (without electrolysis and without external voltage) but my guess is it will consume some materials inside the fuel cell and the fuel cell itself will need to be occasionally replaced (perhaps replaced very often). It means the car will run on "water + very expensive fuel cell". And that fuel cell might be too big (or too weak) for use in automobile applications.