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-   -   Welding with....WATER??? (http://www.chiefdelphi.com/forums/showthread.php?t=47597)

Qbranch 28-05-2006 14:14

Re: Welding with....WATER???
 
He forgot to include that he was dragging a diesel generator to run his electrolysis machine :yikes:

-Q

windup zeppelin 31-05-2006 22:33

Re: Welding with....WATER???
 
well i was actualy watching modern marvels on the history channel and this one guy added hydrogen to his gasoline and air mixture and dramicaly increased his gas economy.

Tristan Lall 31-05-2006 22:39

Re: Welding with....WATER???
 
Quote:

Originally Posted by windup zeppelin
well i was actualy watching modern marvels on the history channel and this one guy added hydrogen to his gasoline and air mixture and dramicaly increased his gas economy.

You've inadvertently hit upon something important: he improved his gas economy, but what about his total efficiency? The H2 that he injects comes from somewhere; probably electrolysis. For each joule of energy that the hydrogen imparts to the combustion reaction, how many joules are spent producing it? More or less than if it were fueled with gasoline alone? What are the environmental impacts of the production methods used?

Dick Linn 31-05-2006 22:59

Re: Welding with....WATER???
 
What are the environmental impacts of the production methods used?

Yeah. It's like adding a little hydrogen sulphide & methane gas in the classroom. It gets your attention but you have to consider the total impact.

pyrome 31-05-2006 23:35

Re: Welding with....WATER???
 
It seems to me like these people are knowledgeable. Most of the stuff one can understand with a high scool education.
Check it out.

Kevin Sevcik 01-06-2006 12:00

Re: Welding with....WATER???
 
Quote:

Originally Posted by Tristan Lall
You've inadvertently hit upon something important: he improved his gas economy, but what about his total efficiency? The H2 that he injects comes from somewhere; probably electrolysis. For each joule of energy that the hydrogen imparts to the combustion reaction, how many joules are spent producing it? More or less than if it were fueled with gasoline alone? What are the environmental impacts of the production methods used?

I was hunting around for background info on this, and discovered MIT has in fact beaten these guys to the punch anyways. http://www.greencarcongress.com/2005...enenhance.html
There's a link describing the tech. MIT presented their research on it in DC in 2003, so they've been at it for a while. The synopsis is that adding hydrogen to the fuel-air mixture effectively enhances the octane rating of the fuel. So you can use this fact to design a leaner running, higher compression, turbo-charged engine without paying for actual higher octane fuel. MIT's contribution is a little (actually little, not a huge heavy electrolysis device) plasmatron that reforms the gas you're already using (not extra water you're lugging about) into hydrogen and carbon monoxide. You pump that in with your fuel, and you end up with 20-30% higher efficiency, even counting the electricity losses. Pretty cool stuff, and it sounds much more likely to make it to market.

Note, however, that you don't get magical efficiency boosts. You still have to design your engine to take advantage of its newer higher octane fuel mix.


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