[Vwdiesel] negative aspects of burning water
eriklane at gmail.com
Sat Sep 22 10:51:51 PDT 2007
I love diesel as much as anyone, and I sure wish they'd bring the Lupo and
other smart little diesels over here! But simply in the interest of fairness
I wanted to point out that the Geo Metro Xfi (I think that was the one)
actually got 60mpg with a little gas engine. Of course that was the special
model with all lightweight stuff, but I think that's kinda the same class as
the super-efficient diesels. I would still prefer a diesel most any day, but
good little gas cars were made. I'm still surprised at all the hoopla over
hybrid when it doesn't seem to deliver what it promises. Though I also have
high hopes that someday when they work out all the problems maybe it will be
able to really work.
RMI used to talk about goals of eventually getting 600mpg, but when I just
looked they were talking about long term goals of 200mpg. They say short
term is 90mpg. It looks like they're backpedaling on what they can deliver
also. It would sure be nice to be able to talk seriously about getting those
kind of numbers. Here's a
their FAQ (pdf file).
On 9/22/07, The President <quantum-man at hotmail.co.uk> wrote:
> Can you elucidate exactly what your diesel electric regenerator actually
> consists of?
> Vehicle method of attachment of generator size of battery etc... any
> of any aspect please :oD)
> >From: "Ron Schroeder" <rjs at bnl.gov>
> >To: <vwdiesel at vwfans.com>
> >Subject: Re: [Vwdiesel] negative aspects of burning water
> >Date: Fri, 21 Sep 2007 08:59:49 -0400
> >Hi James,
> >While the diesel isn't as bad to start with, a diesel will still benefit
> >from a hybrid drivetrain. The diesel does have a wider range of outputs
> >where the Base Specific Fuel Consumption is still high but the farther
> >from the sweet spot, the worse the fuel consumption gets, just like in a
> >engine, just not as bad. Even if a diesel kept the same efficiency over
> >it's entire power range, a hybrid would still benefit from the fuel
> >of regenerative braking in stop and go driving and if the battery was big
> >enough it could get some of it's range from outside electric sources.
> >My diesel/electric hybrid gained about 30% in town with regenerative
> >Kenworth has just announced a hybrid diesel electric Class 6 truck. It's
> >the T270.
> >Ron Schroeder
> > > Message: 4
> > > Date: Sat, 15 Sep 2007 23:55:16 -0600
> > > From: James Hansen <jhsg at sasktel.net>
> > >
> > > Ron S, in a diesel elecric hybrid, would not the returns be too small
> > > justify the added costs?
> > > A diesel can be VERY efficient, but wouldn't the electrical losses add
> > > up faster than the mechanical losses in a straight mechanical drive
> > > diesel? I know there is a net benefit in a gasser, mostly because
> > > gasser is inherently shitty in terms of efficiency to start with.
> > > -james
> > > ****
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