Is it possible to seperate water into Hydrogen and Oxygen through DC electrolosis to create a reusable energy?

Question

Look at this video, at 1min 26seconds it talks about it. If it's true why have we never been told about this ?

http://video.google.com/videoplay?docid=-5022332677878176666&q=David+Icke
You will need broadband to view it...

1933!!? So why hasn't anyone picked up on this? Can it not be used just like oil, petroleum, gas? I can't see why not !!

But it's reusable so eventully the energy produced would out weigh the energy needed to seperate.

It takes nothing and gives nothing to the air and its exhaust fumes IS water.

Good explaination theyuks. The only information I had was in that video, it's clear now why it's not worldwide...

Answer 1

Yes, we've known about electrolysis for a long time. It's how submarines make breathable air while submerged -- they electrolyze seawater and just bubble the hydrogen overboard while releasing oxygen gas into the boat. However, it takes a lot of energy to convert water into hydrogen and oxygen, which isn't a concern in a small space with a nuclear reactor to power everything, but it isn't a 100% efficient conversion of electrical energy into chemical potential energy. There is a loss of energy due to heat, for instance (the electrodes heat up with current passing through them, and even the wiring that carries it there), and as with any energy system, you have to take entropy into account. Depending on who you talk to, you can get anywhere from 50% up to 94% efficiency, but you'll always put more energy into it than you get out of burning the hydrogen later on down the line. The reason we're still researching fuel cell and hydrogen cars comes from the mechanical efficiency of the different types of engines -- you currently still get more bang for your buck out of fuels than from an electric motor-driven car. The energy is only reusable if burning the hydrogen generates the electricity to separate the water back into hydrogen again, in which case, you're talking about a perpetual motion system, and that's physically impossible.

Answer 2

Yes we can do electolysis of water in which water breaks up into its two constituent elements and gives out oxygen and hydrogen. Both these elements can turn out to be good fuels. But the main thing to be noted is that hydrogen has a very large calorific value; which means that it releases lot of heat when burnt and this heat is uncontrollable. The engine which can use hrdrogen as a fuel is also very expensive and thus not affordable by all. So people are trying to make hydrogen an effecient fuel and it will be a big success sooner or later.

Answer 3

Yes it is true however the amount of energy required to seperate the oxygen and hydrogen molecules far exceeds the amount of energy that will be recovered in the lifetime of the fuel source

Answer 4

It takes more net energy to separate the Hydrogen from the Oxygen than you get by burning the Hydrogen. Its close to a wash.

Answer 5

We have know this since 1933.