Doping an internal combustion engine with water vapor

[gildas]

... the t ° of the air has on the other hand a certain importance at the level of the combustion conditions even on a diesel and in principle hotter it is more polluting in Nox.

In this regard someone would not have a curve which gives an order of magnitude of the amount of NOx produced as a function of the combustion temperature on an atmospheric Diesel. The question is whether the usual average combustion temperatures around 90 km / h already allow the production of a lot of NOx or not.

In this case, heating the air increases pollution, on the other hand if the production of NOx "wakes up" near the full pot, this solution of heating the intake air is playable to improve the vaporization of diesel etc. (In any case the engine is quieter at idle with 73 ° of intake temperature, the noise is closer to the gasoline engine).

Good evening flytox,

I looked a bit on the internet and I found a curve for NOx for used cars (diesel, petrol, combined) at different speeds.
Lots of nox at 130 km / h, 2 times less at 70, the lowest of the curve ... then the NOx increases when the speed of the vehicle decreases, the curve in the form of an optical lens.
NOx figures are lowest at 90 km / h for trucks, therefore diesel engine
and at the highest in very low speeds.
(calculations carried out on several kinds of driving conditions)

But you may have seen it!

[Flytox]

Hello Gildas

By resuming research on the net, finally I found that, on engine pollutants, but the analysis carried out is a bit much targeted on "average speeds" of a fleet of cars certainly of more recent technology than my Doloréan etc ... more difficult to interpret / compare

http://www.setra.equipement.gouv.fr/IMG ... ssions.pdf

The article is long, but looks not bad at all ..... to peel.

[gildas]

Hello Flytox and everyone,

I came up with an idea that could be interesting, not necessarily to save GO but to remove the smell of diesel exhaust.
Can we burn coolant vapors (water + glycol) without danger?
Can we connect a flexible hose directly connected high enough on the LDR jar (then another hole with immersion hose) to go to the intake without going through a reactor? Of course the LDR will be watched.
It would be good to put an end to the damned smells of diesel at a lower cost!

[gildas]

Hmm! The LDR expands in the cooling circuit when the engine is hot and the air contained in the expansion tank is pressurized. A dip pipe and another to the inlet mounted on the tank will depressurize, so the LDR will go up in the vase ... but by how much?
Can the cooling system operate without pressure?
Distill from the LDR, but after a year and periodic filling,
Will the composition of the LDR change? Not simple ..

[Other]

Hello

It looks like the VIX system at the time when cars were running exclusively on water in the radiator
Although currently all cars sucks oil and water vapors from the crankcase and if we add the ERG it makes a small volume of significant water vapor which is contained in the exhaust gases.


Andre

[gildas]

Thank you André for your info.

This afternoon I made a 10 km trip with my diesel clio and let the engine run until the radiator fan is triggered with the cap of the vase completely loose:
Cooling and normal engine operation without pressure
in the cooling system, but 7 cm increase in LDR
in the expansion tank. (the level was at a minimum when leaving)
So doable pipe connection at the very top of the vase!

Gildas

[Cuicui]

VIX system

Astonishing! Thank you André.
Like what, there is not much new under the sun.
But how is it that this montage did not meet more success?

[Flytox]

Hello gildas

I came up with an idea that could be interesting, not necessarily to save GO but to remove the smell of diesel exhaust.
Can we burn coolant vapors (water + glycol) without danger?

The different constituents of the LDR may not all be sympathetic to burning pollution issues.

[tigrou_838]

that reminds me of patent n ° GB191144 of 04.01.1923

[gildas]

Thank you Flytox for your attention!

In fact, the vapors of the LDR would essentially contain water because this principle of recovering the vapors of the LDR is similar to distillation, so the components separate: http://fr.wikipedia.org/wiki/Distillation

The boiling point of the LDR antifreeze is 190 ° so will remain in the vase http://fr.wikipedia.org/wiki/Liquide_de_refroidissement

The additives in your document are mainly salts or solids
or made with these (separable from the LDR at 80 °) and not necessarily present in all LDRs.

However, I don't know about the other additives.

It would be necessary to have the boiling point of each additive and the composition of the LDR!

Too bad we can not easily take advantage of this steam from the cooling circuit, because there would only be demineralized water to add to the vase with the same advantages as the VIX system!

Gildas