Water injection competing in 80 years

[Christophe]

She is still employed (WRC except world championship).

Uh WRC = World Rally Cup ... so would you explain the difference with world championship ...?

In plainclothes, to my knowledge it was abandoned because the client was unable to make 2 full

I do not think that is the reason because there is so much vapor in the exhaust gases that it would not even be necessary to fill up with water ... the cause is elsewhere ...

[lau]

What interest for the civilian since it is in a race for power?

I am not going to tell an expert that it was not that long ago (5 years ago) that automobile advertising campaigns were based on the number of horses and the feeling of power.

But if the thermal inertia is greater, we can suppose that it is necessary to compensate for this more painful rise in heat by an excess of fuel

Is that so? I thought it was due to an excess supply of oxygen by the vapor, a bit like the Niagara Falls (which I have never seen elsewhere than in photos) or the famous bowl of oxygen near a torrenc which releases this oxygen.

ps: why do you feel compelled to say that you are not a researcher? it's going to be hard to believe the opposite with the demonstrations that you give us ... I'm sure that even christophe in person can't follow

[Other]

Hello Bolt
Nowhere in your presentation do you take time into account.
In the cycle of an engine the 40bars and the 500c at the end of compression are reached for a few milliseconds, the combustion also lasts for a few milliseconds, the water in droplets has a certain inertia to transform, in an engine which runs at 4000 rpm that must be very short these operations.
We also note that the panton reactor works better at low revolutions at 1800 rpm more efficient than at 4000 rpm
I saw my work when we cleaned the red billets
white before laminating, we send a spray of water sprayed at 150 bars in fine drops of water that does not have time to refriod the billet and that makes little vapor, but a large quantity of microdroplets a cloud of mist.

Andre

[zac]

Uh WRC = World Rally Cup ... so would you explain the difference with world championship ...?
..

Hello
the cars corresponding to the "WRC" regulations, also rolls (slightly modified) in rallicross and in regional championship.
Here it is the 2005 regulations that apply and the controlled differentials and water injection are still allowed.
this is the explanation!
@+

[Philippe Schutt]

André,
when you throw a drop of water on a hot baking sheet, you see that it does not wet the plate, but it makes a ball of water, with a contact surface reduced to the minimum, and even we see that when a little water evaporates, the ball jumps in the air, sometimes it divides, it takes a long time to evaporate. I think that this phenomenon happens when you send the jet of water on the billet.

In water doping, if the T ° of the gases drops by 12 ° with so little water, I suppose that the water must pass into vapor. But in the compression phase, if it recondensed it would return energy, which I don't think because it would increase the engine brake.

On the other hand, the T ° and the pressure after explosion will be a little lower because of the specific heat (mass) of the water, but these T ° and pressure would decrease less quickly. For Renault, it increases the pressure of the turbo.

In an atmo diesel, the drop in T ° increases the vacuum and therefore brings in more air. In the same turbo diesel, the pressure relief valve will open later.

all this already without the pantone ... pfff it's complicated all that

[Christophe]

I am not going to tell an expert that it was not that long ago (5 years ago) that automobile advertising campaigns were based on the number of horses and the feeling of power.

Are they no longer ???

But wait ... between an even powerful engine in series and an Rally or worse F1 engine there is a WORLD !! Compare what is comparable !!

I'm sure even christophe in person can't follow

I am not a reference ... and fortunately it is not me who should type all the calculations all the time ... But I admit that I have not yet checked the bolt calculations ...

Here it is the 2005 regulations that apply and the controlled differentials and water injection are still allowed

I am not at all certain of this assertion ...

[zac]

Here it is the 2005 regulations that apply and the controlled differentials and water injection are still allowed

I am not at all certain of this assertion ...

Hello
You had given me a terrible doubt, I checked on the neighbor's 307WRC the water injection is still there and as it went to control last night it must be in accordance with the rules of the championship of the meeting!
@+

[Christophe]

You had given me a terrible doubt, I checked on the neighbor's 307WRC the water injection is still there and as it went to control last night it must be in accordance with the rules of the championship of the meeting!

Uh ok i crinch But .... it is not to say but championship of the "meeting" (RRC? ) and WRC is not the same if? There may be local exceptions ... right? In any case if it is still used ... nobody talks about it !!

[Other]

Hello Schuttz

For the subject of water injection it is obvious that the principle to cool the intake air is that the water evaporates during the suction and compression cycle, to lower the temperature at the end of compression and indirectly to bring in more mixed,
If he wanted to bring in more air he would have put a bigger compressor.
the problem occurs when the engine fills up to the maximum there is a risk of self-ignition, at mid speed there is no need to cool
Water on BF109 G aircraft water was only used when it wanted power at low altitudes (the compressor was originally for flights at altitude, but in combat have more power using the compressor and injection water was interesting) There is a limit to take weight already that this plane lost its performance too heavy at the end of the war.
On the BF 109 the centrifugal compressor was mechanical drive with an automatic altitude corrector, a beautiful sound very characteristic on this turbo when it passes at low altitude.
As for the panton reactor, with water doping we do not seek to cool the intake air, but rather cool the exhaust gases and take the energy lost in the exhaust,
but it must be returned to the engine at a very precise time, that is to say when the piston is up at the end of compression.
fuel economy is closely related to the differential exhaust gas temperature between the inlet and the outlet of the reactor.
There is a decrease in the engine brake especially on diesels
several possible explanations is that the engine fills less
(I doubt it) either that the temperature during the compression cycle is lower, or that there is recondensation just when the piston arrives at the end of compression ready to come down again, (restitution of energy to the engine, but following a long descent there is no more energy to take, it is not long that the exhaust becomes cold) In a descent engine at a slower it is not the drop of injected diesel which will release a big heat, especially that the engine sometimes runs at a fairly high speed
I live in a fairly flat place, and I noticed when I went to strong ratings of Charlevoix without panton and with panton a clear difference. Those who live in mountainous regions have certainly made the same observations as me.

Andre

[zac]

Hello
it's full of daddy's sons stuffed with money and he buys back (at gold prices) the old cases of the world championship. Here in A8 the cars are more efficient than that of loeb, but as there are only 2 real drivers (and they are not the richest) they make the scratch with super 1600 .
@+
PS: it is the FFA regulation as everywhere in France.