Hello Robert, RJM

There's a lot of information about this here:

http://infoarchive.net/sgroup/BIOFUEL/30409/
Diesel water injection - was Biodiesel burns hotter or cooler?

HTH

Best wishes

Keith


>R. Joseph Murphy wrote:
>
> > Quick question
> >
> > This may be simple or so obvious that I over look it, but . Does 
>anyone know
> > if a water injection system has any affects on exaust gas emissions?
>
>       Yes, it does.  The water vaporizing tends to absorb a portion of
>combustion energy, thereby reducing peak cylinder temperatures.  The
>expanding steam delivers its energy as internal temperatures decline
>toward the end of the power stroke.  (It's an old axiom, but "90% of
>engine power occurs in the first 1 / 3 of engine stroke" certainly
>applies, and the resulting steam from water injection extends that
>power a little longer.  For this reason, water injection was used in
>WW2 bomber aircraft to help get them off the runway.  Without it, the
>citizens of Hiroshima and Nagasaki would have never experienced atomic
>warfare.)  This reduction in peak temperatures MAY result in lower NOx
>emissions, but other variables, such as overall combustion efficiency
>and compression pressure also exert an influence.
>
>
>
>robert luis rabello
>"The Edge of Justice"
>Adventure for Your Mind
>http://www.authorhouse.com/BookStore/ItemDetail.aspx?bookid=9782>



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