when can we use water as an alternative for fuel?

Answer 1

Hi,,, they are experimenting with hydrogen gas as a fuel source, you will need water to create the gas .......

good luck

Answer 2

Never. Would you try to heat something by burning
ashes? Water is the ash produced by burning
hydrogen, it won't burn any more. Steam power
is produced by heating water with some other fuel.
Splitting water to produce hydrogen and oxygen
uses more energy than is then produced by
burning the hydrogen. It is therefore not useful and, in any case, the fuel is then hydrogen, not water. The only way to make hydrogen practical
as a fuel is to find some natural way to split water
without having to burn fuel to produce the energy
to split the water. Some organism might perhaps
be found to do this.

Answer 3

We can't. In a lot of the previous examples (steam engine, hydroelectric power, etc.) the water isn't the fuel, the water is simply being used as a medium to carry energy. It is not the fuel- in the steam engine the fuel is coal, oil or wood, in hydroelectric power, the fuel is gravity/potential energy orginally coming from solar energy in the water cycle.

To create fuel from water we need separate water into hydrogen and oxygen, which requires energy, so it doesn't make a very good fuel. However, you can use energy to split water into hydrogen and oxygen and then use the hydrogen as fuel.

This effectively allows you to create a hydrogen battery which lets you take a certain type of electrical energy (solar, etc.) and convert it into a liquid or gas fuel which you can then use to get the energy back. This allows the solar power to be accumulated and converted into a more versatile form of energy and with more potential energy contained in a smaller volume.

interestingly, if we lived on a planet with a hydrogen atmosphere, the roles would be reversed and oxygen would become the fuel and would burn in the hydrogen.

Answer 4

Using sun energy to divide water molecules into hydrogen and oxygen and then burning the hydrogen is the only way likely to use water as fuel. As was previously stated. That was a great answer.

Answer 5

Never. Water is not a fuel in any sense whatsoever. It can be made into fuel (hydrogen) but that requires energy. You would end up using more fuel to make less fuel.

Answer 6

An alternative fuel? Well just like the new alternative fuel ethanol. It takes corn to make it (at least that is what the government wants you to think). If it is water, corn or soybean it means that if you save at the pump you will pay at the grocery store. So you choose.

Answer 7

Water-Powered Car
For more than three decades now, Daniel Dingel has been claiming that his car can run with water as fuel. An article from the Philippine Daily Inquirer said that Dingle built his engine as early as 1969. Dingel built a car reactor that uses electricity from a 12-volt car battery to split the ordinary tap water into hydrogen and oxygen components. The hydrogen can then be used to power the car engine.

Dingel said that a number of foreign car companies have expressed interest in his invention. The officials of the Department of Science and Technology (DOST) have dismissed Dingel's water-powered car as a hoax. In return, Dingel accused them of conspiring with oil producing countries. Dingel, however, was the not the only man on earth who is testing water as an alternative fuel. American inventors Rudolf Gunnerman and Stanley Meyer and the researchers of the U.S. Department of Energy's National Renewable Energy Laboratory have been pursuing similar experiments.

Answer 8

When we master the containment of a Nuclear Fission, which i belive we have yet to do. The amount of energy creats a blast 1000 times more powerful as nuclear fusion, which creates water. If we used these 2 technologies in unison, we could feasably create an unlimited amount of energy. This could in theory, be powered by a single drop of water, being fused and fissured back and forth, and power easily a car, and actually closer to a submarine. The trouble is containing of the energy and converting it to something usable.

Answer 9

We moved on from steam power a fair while ago. To recycle water into oxygen and hydrogen would be far to expensive and inefficient.

Answer 10

We do use water right now to make electricity. They heat it up and the steam moves big fans connected to generators.

There're also fans connected to generators at the bottom of Dams.

If you mean like...pour it into a car, then you'd be going back to the days of steam trains. Its wayyy more expensive to heat water than it is to burn oil.