Hybrid Car – More Fun with Less Gas

simple stirling hot air engine made at home with simple tools ,2 cans a baloon - Page 2

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Posted by News on December 18, 2011, 2:00 pm

Philips used a small one (an air engine) for running a radio in Africa in
the 1950s. The prime reason they have never caught on is that large auto
makers do not  want to take the plunge. They had the ICE piston engines and
cheap oil and made money - to them, they did not want change.  The
self-serving corporateocracy advances like a snail.

Posted by harry k on December 18, 2011, 5:50 pm

Please tell us what you think would be the size of an automobile with
a sterling engine?

You'll see your failure of the "amazing air car" working before you
will ever see a sterling engine replace the ICE.

Is there nothing so asinine tht you won't buy it?

Harry K

Posted by Morris Dovey on December 18, 2011, 9:58 pm
 On 12/18/11 11:50 AM, harry k wrote:

That's a reasonable question - and one to which I've been giving some
serious thought. It appears that it /may/ be possible to incorporate a
100kW Stirling-driven generator capacity comfortably into a Cooper Mini.

Having said that, I'll also say that I don't think it'll happen for a
while - perhaps not in your lifetime or mine - but I /do/ think it'll
happen - and it probably won't look very much like the Stirling engines
of today.

Morris Dovey

Posted by harry k on December 19, 2011, 5:09 am
That would take some really great differential temperatures between
the hot/cold sides to come up with enough HP to propel the auto at any
reasonable performance level.  Skeptic that I am I do not see it
getting anywhere near the efficiency of a ICE.

Harry K

Posted by Morris Dovey on December 19, 2011, 6:58 am
 On 12/18/11 11:09 PM, harry k wrote:

I should have added that I think this may be possible /without/
intruding on the passenger/cargo space - and without a net increase in
vehicle weight.

I'm pretty sure that's true, and designs that work off the expansion and
contraction of air look like dead ends to me. Temperature differentials
upwards of 350C/660F with supercritical water as the working gas
strike me as promising - because that allows very much smaller
temperature swings to produce very much larger pressure swings.

I'm happy to bow to your greater experience with ICE. However, as long
as there's sufficient output to get the job done, I'm much more
interested in the cost/performance aspect than I am in efficiency.

That's not to say I'm indifferent to efficiency, but I think it's when
we become efficiency fanatics that 'perfect' too frequently becomes the
enemy of 'good'.

Morris Dovey

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