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What is it that I saw? IS it true?

By denis2eth ·
Is there any possibility to drive a car with water Like being claimed here? http://bit.ly/8uOh1i

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OK, now there is a few science bits involved here

by Deadly Ernest In reply to What is it that I saw? IS ...

the best way to use water for energy is to use a power cell and break the water up to hydrogen and oxygen and use them to create electricity, the way NASA has been doing in space vehicles for decades. There are some cars out there that do this already.

As a normal rule water will NOT work ion a petrol or diesel engine as it isn't volatile enough. however, if they have a method to break the oxygen and hydrogen out, and add that to the petrol as gases, then you could see a better performance. BUT, I don't see that happening without you having to install a specially designed motor to handle it as it's a lot like the way racers use nitrous oxide to give their cars a boost - it works, but the car has to be specially set up for it and not every engine can handle it.

I've seen these ads around for about twenty years, and if they really did work that well, many of the government agencies would be using them, yet none are, nor are any of the green movement people - and all that makes me want to have a huge block of sale handy when I ready such ads.

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The science is plausible

by neilb@uk In reply to OK, now there is a few sc ...

And the basic petrol/diesel engine doesn't have to be particularly modified. The key is the fact that the propagation speed for the hydrogen/petrol mix is higher than that for petrol alone so that the ignition point can be advanced for the engine to closer to Top Dead Centre and there is less wasted energy on pushing the piston up against the igniting fuel. The fuel burns quicker, the engine is cooler and more efficient. It also extends the catalytic convertors life.

I looked into something similar a while ago and if I hadn't had a car with injectors - much more expensive to tune - I might have given it a try as it wasn't particularly expensive for the unit and we do have petrol at ridiculous prices.

Even a 5% saving and it would have paid for itself in no time.

Neil :)

The main problem for me would have been in resetting the Engine Management Unit computer as it would have had no idea what was going on.

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The key point is not whether hydrogen will burn but

by JamesRL In reply to The science is plausible

whether the energy used by the engine to create the hydrogen is less than the "extra" energy the vehicle can use by burning the created hydrogen.

James

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It is

by neilb@uk In reply to The key point is not whet ...

The key - as I said above - is the fact that you can advance the ignition timing because of the flame propagation speed of air and hydrogen being so much greater than igniting air and gas or diesel. You waste less energy forcing the pistons up and over the top of the stroke against the combusting fuel. A couple of degrees will do it.

It's not really about the fuel but about efficiency. Well-designed petrol (gas) engines generally run at about 20-25% and up to 30% if very well tuned, diesel as high as 45%. There is plenty of room for savings in there.

Neil :)

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But we need to measure the energy required

by JamesRL In reply to It is

To create the hydrogen and how much gasoline/diesel fuel it costs to create it.

Would the additional load be more than running the AC on high? In my minivan, thats worth 2-3 MPG, or about 10%. Would I have to get a heavy duty alternator?

There are many questions to be answered.

James

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5%?

by CharlieSpencer In reply to The science is plausible

You want five percent? Slow down and you can get it for free.

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I get that with some free air

by JamesRL In reply to 5%?

If I overinflate the tires (from the factory 35 to 40 PSI) slightly I get better mileage and better handling.

James

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And what happens to the Life of the tire? NT

by HAL 9000 Moderator In reply to I get that with some free ...
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5PSI over, not a problem. <NT>

by JamesRL In reply to And what happens to the L ...
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Yes, but

by neilb@uk In reply to 5%?

what I want is what I can get from good driving and good tyre pressure PLUS what I could get from an engine that's as efficient as it could be.

:)

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