Hybrid Car – More Fun with Less Gas

My farewell to fluidynes - Page 4

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Posted by Winston on May 29, 2011, 4:28 am
Winston wrote:

I bet performance would improve if one used a volumetric flask
rather than a test tube. (f(o) matched to the RPM of the motor).


Posted by sno on May 28, 2011, 8:21 pm
On 5/28/2011 2:58 PM, Winston wrote:

LOL.....thanks for video
.....made my day....<grin>

have fun....sno

Correct Scientific Terminology:
Hypothesis - a guess as to why or how something occurs
Theory - a hypothesis that has been checked by enough experiments
  to be generally assumed to be true.
Law - a hypothesis that has been checked by enough experiments
  in enough different ways that it is assumed to be truer then a theory.
Note: nothing is proven in science, things are assumed to be true.

Posted by Winston on May 28, 2011, 8:44 pm
 sno wrote:


I *could not* believe how well that thing performed!



Posted by Curbie on May 28, 2011, 7:07 pm

Most discoveries have been made while traveling down a path to
different destination, Edison said, "I have not failed 1,000 times.  I
have successfully discovered 1,000 ways to NOT make a light bulb."

You can only guarantee failure by NOT looking.

Does the new "hydrodyne" idea have steam as a component, IIRC last
time you posted on this, you where looking at some steam attributes.


Posted by Morris Dovey on May 28, 2011, 8:15 pm
 On 5/28/11 2:07 PM, Curbie wrote:

It does, but in combination with near-supercritical water. The fluidyne
operates on the expansion/contraction of air - and its behavior is
governed by the Ideal Gas Law. If you look at the P vs T relationship in
a fixed-volume context, the relationship is essentially linear with, in
terms of the application, a fairly unsatisfying slope.

For the hydrodyne, I dispensed with the air and started looking for
possibilities with more interesting ∆P/∆T (slope) behaviors and stumbled
onto the Antoine Equation which allows calculating P vs T for the range
0 - 374°C for water in a fixed-volume context, which is non-linear and
offers some interesting possibilities.

Another piece of my puzzle has to do with supercritical water acting
like an ideal gas, but with a much more satisfying ∆P/∆T  than air. The
steam tables included a plot of P vs T for water from 374 to 600°C and
it appears to extend the Antoine Equation curve in linear fashion with
its maximum slope. It seems to be just what I was looking for.

All the while I've also been trying to wrap my head around work being
done (primarily by Russians, it seems) on "retrograde condensation" and
things are beginning to gel for me.

I'm having fun, but my head hurts!

Morris Dovey
DeSoto Solar

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