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SnoMan
Guest
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 Posted:
Sat May 28, 2005 12:12 am Post subject:
Diesel NOx emissions concerns. |
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I was reading a automotive tech mag today and I read that there are no
US or European Diesel engines that can meet or have solutions to meet
2009-2010 diesel NOx limits. Also no US car maker has one that can
meet 2008 levels either even with reduced fuel sulpher. On solution
being considered is injecting urea into exhaust system (ammonia) to
react with NOx and reduce it. It is currently being tested by BMW and
VW and others are looking at it. ONe design has a urea cartridge that
has to be changed for time to time and another one has two fill
nozzles at pump side by side, one for urea and one for diesel into a
twing receptical on vehical. The urea is being made/extracted from
animal urine. THis is a real deal and quite a spin of emission
control and recyling!
--
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Arthur Dent
Guest
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| Posted:
Sat May 28, 2005 4:12 pm Post subject:
Re: Diesel NOx emissions concerns. |
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"SnoMan" <UseLinkToEmail@AutoForumz.com> wrote in message
news:1_592952_eb0267690fe117cd5fa1f474affd31d9@autoforumz.com...
| Quote: | The urea is being made/extracted from
animal urine.
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Now *there's* a carreer path!
"What do you do?"
"Oh, I'm the bucket-man in an animal urine extraction plant." |
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The Real Tom
Guest
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| Posted:
Tue May 31, 2005 12:12 am Post subject:
Re: Diesel NOx emissions concerns. |
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On 27 May 2005 15:35:51 -0400, SnoMan <UseLinkToEmail@AutoForumz.com>
wrote:
| Quote: | I was reading a automotive tech mag today and I read that there are no
US or European Diesel engines that can meet or have solutions to meet
2009-2010 diesel NOx limits. Also no US car maker has one that can
meet 2008 levels either even with reduced fuel sulpher. On solution
being considered is injecting urea into exhaust system (ammonia) to
react with NOx and reduce it. It is currently being tested by BMW and
VW and others are looking at it. ONe design has a urea cartridge that
has to be changed for time to time and another one has two fill
nozzles at pump side by side, one for urea and one for diesel into a
twing receptical on vehical. The urea is being made/extracted from
animal urine. THis is a real deal and quite a spin of emission
control and recyling!
|
If you want a real buzz on recycling, I was told UREA found on the
market is actually a waste product in other industrial processes, so
people are happy when you use it.
later,
tom @ www.CarFleaMarket.com
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Guest
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| Posted:
Tue Sep 06, 2005 8:12 am Post subject:
Re: Diesel NOx emissions concerns. |
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It's impossible for exhaust to contain Nitrous Oxide. It's near
explosive! Any somehow in there (also impossible unless you've got a NOx
injectors system) would likely burn from the exhaust heat alone, even if
it somehow didn't combust in the cylinder..
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SnoMan
Guest
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| Posted:
Tue Sep 06, 2005 11:41 pm Post subject:
Re: Re: Diesel NOx emissions concerns. |
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"see.my.sig.4.addr" wrote:
| Quote: | It’s impossible for exhaust to contain Nitrous Oxide.
It’s near
explosive! Any somehow in there (also impossible unless you’ve
got a NOx
injectors system) would likely burn from the exhaust heat alone, even
if
it somehow didn’t combust in the cylinder..
--
_____________________________________________________
For email response, or CC, please
mailto:see.my.sig.4.addr(at)bigfoot.com.
Yeah, it’s really a real address :)
|
You are quite wrong. NOx is not flamable, it will not burn by itself
for if it did there would be no NOx issues. Diesels are very big NOx
generators, especailly turbo ones. It is the heat and pressure of
combustion that forms NOx because nitrogen (which is generally inert)
combines with excess oxygen at time of combustion when temps and
pressure are right to form NOx.
--
Posted using the http://www.autoforumz.com interface, at author's request
Articles individually checked for conformance to usenet standards
Topic URL: http://www.autoforumz.com/General-Discussion-Diesel-NOx-emissions-concerns-ftopict121900.html
Visit Topic URL to contact author (reg. req'd). Report abuse: http://www.autoforumz.com/eform.php?p=664580 |
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Guest
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| Posted:
Fri Oct 14, 2005 10:00 pm Post subject:
Re: Diesel NOx emissions concerns. |
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On 6 Sep 2005 14:41:45 -0400, SnoMan <UseLinkToEmail@AutoForumz.com>
spewed:
| Quote: | "see.my.sig.4.addr" wrote:
It’s impossible for exhaust to contain Nitrous Oxide.
It’s near
explosive! Any somehow in there (also impossible unless you’ve
got a NOx
injectors system) would likely burn from the exhaust heat alone, even
if
it somehow didn’t combust in the cylinder..
You are quite wrong. NOx is not flamable, it will not burn by itself
for if it did there would be no NOx issues. Diesels are very big NOx
generators, especailly turbo ones. It is the heat and pressure of
combustion that forms NOx because nitrogen (which is generally inert)
combines with excess oxygen at time of combustion when temps and
pressure are right to form NOx.
|
Interesting.
So NOx won't explode if you filled a balloon with it and put a match to
it?
Why isn't there any unburned extras in diesel exhaust that combust in the
presence of the NOx (I assume it acts like Oxygen, hence it's use as a
power booster)?
Maybe they could create a NOx turbo, something that catches it and feeds
it back into the engine :)
Would be cool, but probably impossible I guess.
Finally, to the OP, why does anybody care about NOx emissions?!
It's not like it's bad for you, they feed it to you at the dentist!
If it's "greenhouse" crap, I say screw it. Greenhouse Shmeenhouse :)
Maybe the dinosaurs will come back to life if it gets hot enough!
--
_____________________________________________________
For email response, or CC, please mailto:see.my.sig.4.addr(at)bigfoot.com.
Yeah, it's really a real address :) |
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