[FRIAM] Diesel OK?
Steven A Smith
sasmyth at swcp.com
Sat Mar 31 11:36:29 EDT 2018
If you can score this concept model off the showroom, it sounds pretty
cool, if a bit gimmicky (solar panel on the roof?)
https://auto.howstuffworks.com/diesel-hybrid3.htm
>
> The X3 is a nice car, but then there’s..
>
>
>
> https://cleantechnica.com/2018/01/06/tesla-tech-conquers-great-small-towing-semi-trucks-wiping-windshields/
>
>
>
> *From: *Friam <friam-bounces at redfish.com> on behalf of Frank Wimberly
> <wimberly3 at gmail.com>
> *Reply-To: *The Friday Morning Applied Complexity Coffee Group
> <friam at redfish.com>
> *Date: *Friday, March 30, 2018 at 5:51 PM
> *To: *The Friday Morning Applied Complexity Coffee Group
> <friam at redfish.com>
> *Subject: *Re: [FRIAM] Diesel OK?
>
>
>
> If you want acceleration, get an X3 with the six-cylinder turbo
> engine. At this point I think all BMWs have turbocharged engines,
> diesel and not.
>
>
>
>
>
> ----
> Frank Wimberly
>
> www.amazon.com/author/frankwimberly<http://www.amazon.com/author/frankwimberly>
>
> https://www.researchgate.net/profile/Frank_Wimberly2
>
> Phone (505) 670-9918
>
>
>
> On Fri, Mar 30, 2018, 5:32 PM Owen Densmore
> <owen at backspaces.net<mailto:owen at backspaces.net>> wrote:
>
> Wait! Your sports car (Porsche) would have a high compression
> ratio, right??
>
>
>
> My bias is away from diesel at the moment, simply because it costs
> more and some of the benefits are no longer with us. No longer
> cheaper etc. But they do have more pick-up, and apparently better
> maintenance.
>
>
>
> Keep the cards and letters coming tho, very useful!
>
>
>
> -- Owen
>
>
>
> On Fri, Mar 30, 2018 at 5:02 PM, Eric Smith
> <desmith at santafe.edu<mailto:desmith at santafe.edu>> wrote:
>
> Thank you Frank and Steve, both,
>
>
> > On Mar 31, 2018, at 3:33 AM, Frank Wimberly
> <wimberly3 at gmail.com<mailto:wimberly3 at 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<http://www.amazon.com/author/frankwimberly>
> >
> > https://www.researchgate.net/profile/Frank_Wimberly2
> >
> > Phone (505) 670-9918<tel:%28505%29%20670-9918>
> >
> > On Fri, Mar 30, 2018, 9:53 AM Steven A Smith
> <sasmyth at swcp.com<mailto:sasmyth at 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?
> >
> >
> >
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> Meets Fridays 9a-11:30 at cafe at St. John's College
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