I suppose it would depend on how badly they wanted water injection and how much they were willing to spend. Lots of ways they could hide lines within lines and such, have the drinks system run it somehow, etc. I should state I have no idea how water injection would work with these lean burn engines that want to maintain high temps though.strad wrote: ↑Fri Jul 27, 2018 8:06 pmThanks Maritimer;
As an old time drag racer I am aware of the mixing of alcohol and water. However there has been the use of straight water to cool things as well. But you are correct that drag racers often used a mixture. As I said though it usually required plumbing that scrutneering would spot.
Of course the guys in F1 are pretty sharp on hiding things but I doubt they are doing it. What is your opinion?
Water/meth is far more common than straight methanol since most folks add it after they have a well tuned setup and are after some more gains. Methanol is usually the fuel itself, I havent heard of anyone injecting it with a fogger into the intake like water running a gas engine. I could very well be wrong though. Methanol engines are beasts all their own.Tommy Cookers wrote: ↑Fri Jul 27, 2018 8:15 pmafaik
the methanol part would have been F1-illegal (in the 80s)
it was water-only
on the dragstrip you'd use methanol-only (as water has no fuel value)
aviation used/uses methanol/water (ICAO Methmix) ie water as a cheap coolant and methanol to stop water freezing
a poster wrote that ...
Australian Harriers used water-only as it was hot and the tank in a hot position (and methanol corrosive to airframes)
And illegal.wuzak wrote: ↑Fri Jul 27, 2018 2:19 amI don't think you'd use coolant for combustion, as such, but to provide an anti-detonation effect.Maritimer wrote: ↑Fri Jul 27, 2018 12:10 amWater soluble oils don't burn very nicely, especially once they're in solution. The vapors can be flammable but I doubt you would get much useful energy from them in an engine. Plus theres the matter of getting your coolant into the cylinder without there being potential for the engine to pump gases into the water jacket. Probably not a path worth going down.
But since it could not enter the compressor inlet legally, and any leakage would probably cause problems with lubrication, I think it is highly unlikely.
I remember looking into that. That was for the 777 9x which is still under development. The story also did not come from GE itself but from the CEO from Emirates who suggested that it was one of the solutions to deal with the extremely high temperatures in the summer months. GE immediately pushed back against the suggestion.
Steam injection?NL_Fer wrote: ↑Thu Jul 26, 2018 10:27 pmWith a sharp limit on oil consumption, the tech-heads must be looking for other ways of adding some to the combustion. How about coolant? What is possible to add in the fluid and what could be gained?
Even if a combustable additive is not possible, how about preventing knock or even just cool the charge temperature. Any ideas if such is possible or why not.