What is the black smoke

I'm going to tell you that for me a little while ago ? was a revelation.
Up to now I have learned that the black smoke ? "diesel fuel unburned," but are now able to give an explanation on the pi? technique.

In all of the fuels are present, Carbon C, Hydrogen H, and optionally sulfur S.
These in the combustion chamber and go on to develop the following reactions:

The pi? capable of attracting oxygen ? the hydrogen, which then consumes all producing water through the following reaction
2H2+O2=2H2O (water and precisely steam)

Then the sulfur has the reaction S+O2=SO2 (sulphur dioxide is corrosive if it is condensation in the exhaust but this is not the case why? the temperatures remain too high)

Finally, c'? the Reaction of combustion of carbon.
If c'? still sufficient excess of oxygen makes the reaction
C+O2=CO2 (carbon dioxide)

If the oxygen starts to run low carbon change reaction
2C+O2=2CO IS a chemical reaction that produces less heat

If the oxygen, but those that remain unpaired are carbon atoms that form solid particles called SOOT, which are excreted drag from the smoke.

Then the black smoke that we see not ? so that the soot of the chimneys, and ? composed of atoms (or molecules?) carbon.

I am aware that this concept is not will help you? to map better, but according to me, it was a nice treat to share.
Greetings, Nitro

the white smoke instead ? , what is blue ?

I'm sorry, I don't know. This news I found it by chance on a book at school. Anyway, I try to do a search and if I find something in the place

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Originally Written by Nitro

I'm sorry, I don't know. This news I found it by chance on a book at school. Anyway, I try to do a search and if I find something in the place

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And of course cos? I'm at the point we complete the description of what they are composed of various types of smoke. Anyway, thanks for the full description of black smoke.

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Originally Written by faberecu

the white smoke instead ? , what is blue ?

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White smoke is caused by the accumulation of water vapor on the inside of the marmita and the segment ch+fap in contact with the hot air that exits the turbine at the time of the ignition of the engine, and then are pushed with the flow of air out of the exhaust .. in Fact, when the engine is at 90 degrees that the white smoke does not exist.. even if it's snowing or the presence of a lot of humidity

Smoke, blue-green, usually do gasoline engines for combustion wrong .. then air ratio:gasoline disproportionate or clogged filters spark plugs dirty... volume between the cylinder and the piston is insufficient , then preblemi compression .. then neln the case of the turbo petrol engine, there is always the circuit of the air pressure from the control ( as on the diesel)

Other reasons : Leaks oil in the combustion chamber by the ear tips of the valves..

To make sure no confusion I answer with precision : Smoke, clear-blue = oil burning.
If instead it is only clear, it could also be water vapor.
Then (because of the high temperatures) may also be
match the head gasket and/or head with some cracking.

bravo nitro!

... And thanks also to sighline who has completed the work
I was looking for formulas, but this explanation is fine

Congratulations