Water from Exhaust
I have seen on a lot of cars dripping water from the exhaust. I read/heard (those are the keywords.. so no flaming please) somewhere that it is because of complete combustion in the engine chamber and that those are the condensed air mixture... is this true? Is this a way to monitor the "effeciency" of the engine? Is our TC engines as good if this is any indication? Thanks.
I live in an area where reformulated gas is required. Correct me if I'm wrong, but in these areas an additive is added to the gas to make it burn a little cleaner (although some argue is doesn't), but an effect of this is that it also produces a little water which drips out of the exhaust.
We did the formula out once in chemistry class and when done out in an "ideal" enviroment the only biproduct of the gaseline combustion in the cyclinder should be H2O. But of course we don't live in the indeal enviroment so we get other biproducts like CO2 etc. There will be alot of factors in the amount of water that drips from the muffler/s. A couple being how long has the person been driving and how fast they like gun it at the stop signs. But most cars that have been running for a period of time should have the water issue.
Water is a by-product of petrolium benzine combustion. Oxagen atoms from the O2 in the air and hydrogen molecules in the fuels hydrocarbon atoms combine during the combustion process and create water (as well as other oxides)
edited 11:27 14MAR05
edited 11:27 14MAR05
the products from a good combustion are water and carbon dioxide (could be wrong, might be corbon monoxide...).
normaly the water is in gas form and not noticed...but if it cools enough you can see the drops of water....
as for monitoring this you could use a wideband O2 sensor....
it tells if you are running rich / lean or just right (stoch)....i
normaly the water is in gas form and not noticed...but if it cools enough you can see the drops of water....
as for monitoring this you could use a wideband O2 sensor....
it tells if you are running rich / lean or just right (stoch)....i
Originally Posted by dgHotLava
the products from a good combustion are water and carbon dioxide (could be wrong, might be corbon monoxide...).
normaly the water is in gas form and not noticed...but if it cools enough you can see the drops of water....
as for monitoring this you could use a wideband O2 sensor....
it tells if you are running rich / lean or just right (stoch)....i
normaly the water is in gas form and not noticed...but if it cools enough you can see the drops of water....
as for monitoring this you could use a wideband O2 sensor....
it tells if you are running rich / lean or just right (stoch)....i
H20+CO2 (carbon dioxide) + CO (Carbon monoxide) + C (free carbon) + NOx (nitrous oxides) + released energy (heat).
When the engine is cold the gases condense and come out as water drops. When the engine and the catalytic converter are hot enough the combustion sub-products reach the end of the tail pipe in gaseous form and are not seen unless is enough cool outside and then they come out as white smoke.
Originally Posted by niguels
Originally Posted by dgHotLava
the products from a good combustion are water and carbon dioxide (could be wrong, might be corbon monoxide...).
normaly the water is in gas form and not noticed...but if it cools enough you can see the drops of water....
as for monitoring this you could use a wideband O2 sensor....
it tells if you are running rich / lean or just right (stoch)....i
normaly the water is in gas form and not noticed...but if it cools enough you can see the drops of water....
as for monitoring this you could use a wideband O2 sensor....
it tells if you are running rich / lean or just right (stoch)....i
H20+CO2 (carbon dioxide) + CO (Carbon monoxide) + C (free carbon) + NOx (nitrous oxides) + released energy (heat).
When the engine is cold the gases condense and come out as water drops. When the engine and the catalytic converter are hot enough the combustion sub-products reach the end of the tail pipe in gaseous form and are not seen unless is enough cool outside and then they come out as white smoke.
i thought i was close...
now how can i capture the NOx to re-use...lol
Thread
Thread Starter
Forum
Replies
Last Post
Greg S
Scion xB 2nd-Gen Forced Induction
2
Jul 21, 2016 07:28 PM
hampton1100
Scion tC 2G Suspension & Handling
2
Jan 2, 2015 08:13 PM







