Thank you Frank and Steve, both,
> On Mar 31, 2018, at 3:33 AM, Frank Wimberly <wimber...@gmail.com> wrote: > > My petrol car has a 12.2 to 1 compression ratio and sparkplugs. Boy, I was way off. Thank you. Eric > > ---- > Frank Wimberly > > www.amazon.com/author/frankwimberly > > https://www.researchgate.net/profile/Frank_Wimberly2 > > Phone (505) 670-9918 > > On Fri, Mar 30, 2018, 9:53 AM Steven A Smith <sasm...@swcp.com> wrote: > I just read up a little on Selective Catalytic Reduction which seems to > characterize Bruce's Urea-injection system. > > https://en.wikipedia.org/wiki/Selective_catalytic_reduction > > Which is similar but different to Air Injection: > > https://en.wikipedia.org/wiki/Secondary_air_injection > > both in various combinations with two-way and three-way catalytic > converters: > > https://en.wikipedia.org/wiki/Catalytic_converter > > > I remember in the late 70s, early 80s when we imagined that an ICE > engine that could efficiently convert atmospheric oxygen and the > hydrocarbons of fossil fuels into pure CO2 and H20 would solve any and > all "pollution" problems. Folks like Bill McKibbin were already trying > to alert us to Greenhouse Gas problems, but I know *I* wasn't listening > past my TechnoPhilic hearing aids. > > As for Ed's apocryphal "peeing in the gas tank", urine being primarily > H20... it seems highly unlikely that the <2% additive of Urea or Uric > Acid would be any benefit in emissions, though there have been systems > that injected water into the air-fuel charge which I believe (under very > limited conditions) increased power/efficiency by small margins, but I > think that was a result of cooling the incoming mixture effectively > increasing the difference between input/output temps resulting in > similar effects of increasing compression ration? > > > - Steve > > > I seem to remember this as being associated with higher nitrogen oxide > emissions than richer-burning. Has that long since been fixed? > > I believe that NO emissions are associated with the lean burn of > > Petrol... I'm not sure why Diesel is less apt to that... perhaps the > > longer chain hydrocarbons, the higher compressions (a different > > pointin the pressure/volume/temp space?) or the more "natural" or > > complete combustion conditions without a spark? > > > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove
