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Old 04-02-2008, 09:16 AM
Paul mabbott's Avatar
Paul mabbott Paul mabbott is offline
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Join Date: Oct 2005
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Re: Water Powered Cars & Planes

Quite so.
Why not - Ben Goldacre: Free energy? It doesn't measure up | Comment is free | The Guardian
Where would the brainless be without the web ....

Quote:
Originally Posted by eeyore View Post
there is only one teeny weeny tiny flaw with this plan ..... its total and utter oooooooo

Yes water can be divided into hydrogen and oxygen and the hydrogen then burnt this much is true - however simple physics tells us that the energy that has to be applied to seperate the H2 from the O would be equal to that generated when the two are combined.

and thats assuming that you get 100% efficiency in both directions which you dont.

so basically you take your energy (normally as electricity) apply it inefficiently to generate hydrogen (wasting arround 25%) and then you fuel the car with hydrogen - a highly explosive and compustible gas (remember the hindenburg anyone)- also inefficiently - losing arround another 25% of the initial energy budget and shortening the life of your engine, yeah sure wilbur

wouldnt it make more sense to just use the electricity to run the motor at low speeds- as is done with hybrid models ???

Fuel cell technology does have its place - for example in storing energy generated from variable alternative sources , but the car sure as heck isnt it.
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