h a l f b a k e r y"Not baked goods, Professor; baked bads!" -- The Tick
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I read that during the 20th century catalytic converters had to warm up prior to functioning effectively; that matters as most ordinary commutes had the catalytic converter fully functioning after half or a third of the commute occurred
I think that directing the vehicle exhaust to just one area or
with a wobbly nozzle a circle perimeter would rapidly warm a particular area of catalyst making it rapidly effective during the first minute
Then as the nozzle gasket gradually warms to active catalysis temperature it goes to the full area coverage shape
basically its a way to get the catalytic converter working during the first minute rather than waiting until half or a third of a commute has elapsed
also the nozzle directed rapidly warming area has a wider range of possible chemical catalysts some of which might be cheaper
Combining this idea with using a magnetic coin squasher to make ultraflat catalyst particles could make catalytic converters 20 to 40 times cheaper as (a third to twice as effecitive with area warming Times ten or twenty times the surface area per particle) 20 to 40 times as effective That goes well with catalytic converters keeping the air of the developing world clean
making super high surface area microparticles with a magnetic pulse
Electromagnetic_20c...20doing_20chemistry
[beanangel, Jun 22 2010]
Carbide and Carbon Building, Chicago
http://farm4.static...1046_2377bc2e61.jpg
That gold stuff is gold. But if you take some, the Eye will see you. [bungston, Jun 23 2010]
Early exhaust buffering system
http://www.buickclu...db8d804214b4db0.jpg
[MaxwellBuchanan, Jun 23 2010]
[link]
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I find it amazing that you're able to write whole ideas
without ever using the word and, and sad that
certain intolerant individuals harangued you into
such a practice. As for the idea, bun. |
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The focussed-warming idea sounds good to me. However, I
also suspect that normal converters do this anyway to an
extent, because the area near the inlet will warm up faster
than that near the outlet. But a tentative [+] |
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On the ultraflat catalyst particles - what are the dimensions
of the particles in existing converters? Are the particles
composed entirely of the expensive catalyst, or are they just
coated therewith? |
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[Voice], would that mean paragraph breaks? Because I could actually read this, and did. |
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Early exhaust tends to be moisture-laden, so you'd need to address that issue. |
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I like it. My (German) car has a weird system of limiting the transmission to 2nd gear until the cat heats up. The engine must rev higher and thus heats up the exhaust system faster. But it's really annoying because I can't go faster than 30 for the first couple minutes of my drive. |
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Not a bad idea as , if stated, it is not already an 'out of the box feature'.
I also give an approving nod to the introduction of a punctuation mark. It worked. YOu could sneak a couple more in next time. |
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Since catalytic converters are largely a well engineered scam, anything which improves public perception of the device helps to perpetuate the scam. (-) |
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For those who are now shouting at me via the monitor: A catalytic converter, when up to working temperature, will reduce the proportions of CO, NOx and CHx in the exhaust gas. The problem is, as stated by Beanangel, that they don't get up to working temperature for some time, up to thirty minutes at 20°C ambient in the larger units, longer in colder weather. In an average UK car journey of about 8 miles, the device will never reach operating temperature. During this time, it will restric exhaust flow, leading to increased fuel consumption. It will also become contaminated with deposits of unburnt CHx, reducing it's effectiveness on those occasions when it can warm up.
Emissions tests are carried out with engines fully warmed up. I have had to wait 20 minutes for my car to get warm enough to test at the MOT. It is distorted data such as these tests which are used to convince government to adopt specific testing procedures to suit specific devices, al dependent upon the power of lobby groups. |
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Heating with exhaust seems inefficient. Why not actively heat with wires, akin to what is done with a window defroster? |
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The magnetic coin squasher add on is interesting. Given the expense of the metal catalysts used in these I would think that some effort would already be expended in making the metal flat. |
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As a marginally related side note, I learned that the Carbide and Carbon building in Chiago (linked) is actually clad in very very thin gold leaf. Plus there is a weird lit eye in the top that I could not find well explained anywhere. |
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alternately you can do what car companies have been doing for the last decade and run the car excessively rich briefly after start up to rapidly heat the cats up. In addition to this most modern systems include a first stage that is so close to the exhaust valve that it heats in seconds. Directing the exhaust to pass through a limited area of reactor is asking for that area to foul, plug, break apart due to thermal stress or otherwise fail. This simply isn't a very good idea. |
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In the early days of catalytic convertors, the exhaust gases
were stored until the convertor had warmed up to a suitable
operating temperature. They were then recirculated
through the convertor. Link provided for your convenience. |
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/foul, plug, break apart due to thermal stress or otherwise fail/ |
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When someone asks these things of me I find it so hard to choose. I usually make them pick their top choice and second best. |
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// I find it amazing that you're able to write whole ideas without ever using the word and, |
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how the hell did you notice that?? I can't help but think I've missed something here |
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genetically engineered lemons with specific mutation
making children more aggressive n greedy spurs
millions of CEOs n really good lemonade stands add a
coin smasher for micron bits of yuppie mutated rich
people n pour water on them for sprayable liquid phase
microemulsion n
use in apocalyptic happylong warhead device or
something similar |
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Bastærds with dipthongs - is that a sign of impending apocolypse? |
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you know, I often think that beanangel is actually an
alien in disguise trying to help humanity by secretly
pushing new ideas that have worked elsewhere into
human society. |
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You really didn't have to come out and say what we were
all thinking. |
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