Dave wrote:
On Nov 15, 11:06 pm, Bertie the Bunyip wrote:
Dave wrote in news:97dd61d9-9e9e-46f0-9034-
:

Despite all these problems, though, I would think it would be much
easier to get a steam engine to work with actual steam than with
compressed air.
--
Waddling Eagle
World Famous Flight Instructor

No one seems to be designing anything to run on steam anymore -
despite it's being a proven technology that will operate on any source
of heat. Is high maintenence the reason? Or is it high initial cost?

It's a PITA for a car which is why it died out in the early years of the
last century. You had to go out and light the fire 20 minutes before you
went driving. The simple cars like the Stanley had no condensers and you
had to top them up with water after about 30 miles and the cars that
recycled like the White were extremely complex to operate (even the
stanleys were pretty daunting)
The performance was amazing, though and they are smooth and almost silent.
Serpollet held the land speed record several times and that was taken off
them once or twice by electric cars IIRC. In the end the convienience of
the IC engine won out after they were simplified enough to be easy for
almost anyone to use. Steam lasted up to about 1930 for at least one make
(I think it was Doble), White lasted up at least through the first war with
steam (they still exist , of course) and Stanley into the 20s I believe.

Nifty contraptions and beautiful pieces of engineering..

Bertie

I would think that many of the drawbacks could be overcome with modern
control systems. From what I have read the Doble did solve most of the
problems of previous attempts. However, it was more expensive to build
and overcome by the cheapness and convenience of gasolne engines. The
ability to burn any available fuel could make a difference in the
future.

If by any fuel, you mean coal, wood, or cow chips, yeah it might
make a difference if there were no liquid or gas fuels to run in a
normal IC engine whatsoever.

That isn't going to happen.

Steam engines are horribly inefficient compared to an IC engine and
unless you have some sophisticated scrubbers on the smoke stack of
your "any available fuel" burner, polluting as hell; real pollution,
not the CO2 boogy man pollution.

Trains, boats, and big electric generators are the best use of a
steam engine.

Notice none of those have used steam engines for a long time.

--
Jim Pennino

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