Water Injection

Bruce nacelp at bright.net
Thu Dec 13 20:56:46 GMT 2001


Some folks.
Some have a few clues to the way.
Bruce
   I can name 7, in this room <g>



From: "rr" <RRauscher at nni.com>
Subject: Re: Water Injection
> And heaven-forbid you mention that a TBI system results in an engine
> with a higher VE (hence power) then it would when port injected.
> And folks wonder how I can spend so much time on this stuff <G>!
> BobR.

> Robert Harris wrote:
> > When you grow up enough to get tired of the HRM and other myths,
> > misinformation, conjecture, hype, anti-hype and general bullshit you
might
> > just want to read up on what your tax payer dollars paid for on the
subject
> > when lives were dependent upon the advantages it provides.
> > Check out the NACA report server - there are literally dozens of reports
here
> > that were created using test engines, dynos etc specifically testing to
> > destruction various facets of engine design including water injection.
> > http://naca.larc.nasa.gov/
> > Some generals from the testing.   Water injection works as an internal
coolant
> > - absorbing energy from both the charge and the cylinder.  Works well
enough
> > that at high levels greatly reduces the heat lost to the jacket.  Fact -
read
> > the reports.
> > Water injection replaces excess fuel used for coolant with little power
change
> > ( favoring water injection ) right down to about stoic.  Fact - read the
> > reports again.
> > Excess fuel ( Rich mixture ) is used primarily for charge/internal
coolant.
> > Power output water vs rich about the same up to the detontation limit
for
> > fuel.   Water however, can be used to much higher limits and allows
major
> > increases in power over fuel because far more charge at much higher
pressures
> > can be consumed in a cylinder.
> >
> > Upper limit for water injection testing was limited not by combustion,
but by
> > severe water contamination of the lubricating oil.
> >
> > The NACA stuff is kind of hard to accept.  Silly arsed bastards didn't
use
> > computers or math models - they actually built engines, tested them to
> > destruction and recorded their results.  Oh - silly me - that's primary
> > research.
> >
> > If you worship the Taylors, did you know they did the research for most
of
> > their books at NACA and you can get copies of the original research?
Same for
> > most of the other prominent writers.  You can read the sound bites in
Heywood
> > or read the research at NACA.


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