So what is so difficult in making cars run on water ?

Question

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Answer 1

no man you got it all wrong. i have an idea that&#039;s similar to an old steam engine, but it only works in the day... doesn&#039;t burn coal... doesen&#039;t burn anything at all.

Answer 2

Exactly. You&#039;d still have to burn something to crack the water. What&#039;s the point?

Answer 3

Actually water can be thought of as the byproduct of previously burned hydrogen fuel, which burns with oxygen almost on contact.  Making hydrogen fuel from water essentially requires electricity to &quot;unburn&quot; it and return it to the primordial state it was in eons ago when the solar system was forming.  However it still has the advantage of being portable, and can be manufactured by &quot;clean&quot; energy sources such as wind, nuclear and solar.

Answer 4

Where are you going to get the energy to generate the hydrogen?  Now, why don&#039;t you simply use this energy to power the car, than to first generate hydrogen and THEN power the car?  That&#039;s not efficient.

Answer 5

Electric cars work that way, because their batteries are charged with electricity, and that electricity comes from alternators, those machines work using waterfalls.

Answer 6

Exactly

Don´t be offended but this is the problem of &quot;how to burry a mountain in the ground...&quot; first you have to dig a hole of the same volume to put in it... which results in a similar sized mountain extracted... and you can go like this indefinitely.

Answer 7

By the way, using hydrogen gas as a combustible fuel has nothing to do with the thermonuclear reactions that take place in hydrogen bombs at extreme temeperatures that can only be realized by the detonation of nuclear fission &quot;A-Bombs&quot;.

Answer 8

In a nutshell, storage.  How do you store enough hydrogen to propel a car for 100 miles?   That&#039;s a LOT of hydrogen.  

NASA liquefies the hydrogen for the space shuttle, but  that&#039;s unbelievably expensive and not very efficient.

You can adapt systems designed for CNG, which store CNG at pressures as high as 3600psi. But 3600psi of hydrogen is a lot less fuel than 3600psi of CNG, so you&#039;re going to need MUCH larger tanks.

You&#039;re saying &quot;manufacture the hydrogen on demand&quot; - that&#039;s the right idea, but that takes power, and where are you going to get the power ON a moving automobile?

Answer 9

I am assuming that you want to break the H2O into hydrogen and Oxygen, use the hydrogen as fuel and the Oxygen as the emission.  I heard it best explain that hydrogen is not an energy source itself, but an energy transport.  Energy is used to break apart the water and then the energy is released as hydrogen fuel.  The energy required to break the water is higher than that available in the hydrogen fuel (energy loss due to heat).  So you would have a vehicle that has a negative energy balance and would require an alternate fuel source for your alternative fuel source…

Answer 10

I am involved in a project where we are using renewable energies to provide power for electrolysis (that is the process of splitting the H2 from the O in H2O).  This is a total clean method of producing hydrogen.

As said before, hydrogen can be used as energy storage.

Why hydrogen?

1. When you use the potential of hydrogen, the bi products are not harmful to the environment.

2. you can use (burn) hydrogen in existing combustion engines.  Being there are millions of existing fossil fuel engines, we can convert those engines to run on hydrogen and burn clean.  This would be an easier transition for the automobile industry to third world countries.

THE REAL PROBLEM

How to safely and effectively store hydrogen on a car.   There is a paradigm that people have of explosions of hydrogen.  Hydrogen is only explosive at very specific concentrations.  Being that Hydrogen &quot;escapes&quot; any pressure tank so fast, explosions of hydrogen tanks have proven through testing to be LESS and MORE safe than our current gasoline tanks.

Answer 11

I will assume you are actally speaking of hydrogen fuel, rather than water.

The biggest problem currently, is finding a microorganisms that can produce high enough amounts of hydrogen to meet the demand.

We will either find one, or modify one. It is curently in the works.

Answer 12

Have you heard of the H-bomb? The hydrogen bomb? Though hydrogen is very reactive and therefore contains a lot of potential energy safely harnessing that energy is really difficult.

Answer 13

One of the problems with using hydrogen as fuel is that if someone&#039;s in an accident you can kill a lot of people easily.  sure using it as a fuel and having it produce water is a really helpful idea, but hydrogen by itself (as i understand it) is very explosive, put it in a crash with flames, oh that&#039;s all sorts of trouble.  Somebody tell me if i&#039;m misinformed on that.

Answer 14

Good how much will a shower cost . Guess people will be stealing water out of my pool soon .

Answer 15

You answered your own question.  Water is VERY stable.  Therefore you cannot get energy from it.

Edit:  To answer your idiotic reply above.

I never said you couldn&#039;t get energy from HYDROGEN.  But you can&#039;t from WATER.

You must use energy to make the hydrogen from water.  That converts H2O * 2 --&gt;  2 H2 and 1 O2.  Then you burn the hydrogen (which means to combine with oxygen) to form H2O.

It you did this IDEALLY (which is impossible) you would get exactly ZERO energy and thus not obtain any energy from the process.

Go to school, learn about the basic law of thermodynamics and you will understand.  Or maybe not and you can be forever ignorant in your bliss.

Link all the ridiculous sites you want, they are still not fact.