Water Injection

[rr]

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.
>
> Pleasant reading for the few - the rest - enjoy the myths.
> ----------------------------------------------------------------------------

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