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water as fuel

 
 
nnad
 
Reply Thu 27 Jan, 2011 09:39 pm
why water is not used in car engines instead of petrol?
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Type: Question • Score: 1 • Views: 1,215 • Replies: 7
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laughoutlood
 
  0  
Reply Thu 27 Jan, 2011 10:53 pm
@nnad,
hydrogen and oxygen, you utter genius
nnad
 
  1  
Reply Fri 28 Jan, 2011 12:35 am
@laughoutlood,
plz explain
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MontereyJack
 
  1  
Reply Fri 28 Jan, 2011 01:26 am
It doesn't burn quickly, like gasoline does, (or at all), and you can't make it burn quickly.
roger
 
  1  
Reply Fri 28 Jan, 2011 03:05 am
@MontereyJack,
Of course not. It has already been burned.
0 Replies
 
Krumple
 
  1  
Reply Fri 28 Jan, 2011 05:00 am
@nnad,
nnad wrote:

why water is not used in car engines instead of petrol?


Because water does not combust or explode. Petrol is volatile when exposed to a spark which causes it to ignite, and if you place it into a cylinder under some pressure the gas will ignite and want to expand, which can be used to push on a piston, attached to a crank which can then produce torque. That torque is then used to spin some tires making the car move forward. Water will not react the same way that petrol does. When you expose water to a spark, it will not explode or combust.

However you can produce hydrogen fuels from water though! But that requires some electricity and some time and the amount of electricity that is required is not worth the amount of hydrogen you get as a result. But with petrol you can enrich it far cheaper and hydrogen production so we use it instead of hydrogen.
nnad
 
  1  
Reply Fri 28 Jan, 2011 10:15 am
@Krumple,
Thanks brother krumple this is I expected answer and send me any useful information regarding anything.
0 Replies
 
Butrflynet
 
  1  
Reply Fri 28 Jan, 2011 11:44 am
@nnad,
Many videos for using water as fuel. Here are just a few:








And here's an article on CalTech's efforts to make fuel from sunlight and water, as mentioned in the SOTU speech:

http://www.pasadenastarnews.com/ci_17209396




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