> 210+ bar. This means that the boiler, the turbine, and the feed pump
> must take 210bars continuous. Nobody I know has the 
> technology to work with 210bar steam in the garage, even if 
> not at 700K. Even 40 bars is too much for most 'home use' 
> equipent. If you feel courageous obtain a scuba tank and use 
> it to power your turbine or generator (very dangerous - you 
> cannot blame me if you get hurt).

I totally agree with Peter here. EXTERNAL, high pressure, steam is
dangerous. 

That is the point of the internal flash boiler idea I was presenting: That
it only has a LITTLE steam and it is all INSIDE the cylinder of the engine.
The high pressure is contained and exists only for the power stroke, just as
in a standard gasoline engine.
http://www.massmind.org/idea/mc-heat-inject.htm

This hot air turbo generator is much nicer. Low(er) pressures all around,
nothing but hot air to vent (although that may be somewhat dangerous) and
commonly available engine parts in all cases.
http://www.piclist.com/techref/member/plp-actcom-f00/sun-turbo-1.htm

This is NOT a pipe dream: Although it might not work, both of these ideas
are such that any fairly well equipped home garage with some time and money
can test them and report what the problems or promise of the ideas actually
are.

I presented a series of steps that I would follow to test the internal flash
engine idea: 

If I had a spare unit like that, I would just vice it, take the spark plug
out, put a torch to the head and spray water from a bottle into the spark
plug hole to see what happens. Err... Wearing a heavy glove of course. If it
makes a nice puff of steam, I'd move on.

Then I might go and buy a fuel injector from the local auto parts place and
see about finding a way to screw it in place of the plug and feed it with
some water from a tank and hose. Then disable the intake valve, move the
engine to just past TDC, heat the head up and spark the injector.

If it turned the crank, even a little, I would work on changing the exhaust
valve timing so that it prevented any compression. And figure out a trigger
for the injector based on TDC. 

Somewhere in there, if I had a mill, I would try to increase the surface
area inside the head. Maybe build a shroud to keep more of the torch heat
focused on the head.

It might actually start to run... Or not... Either way, it would be good to
know.

Notice that this totally ignores the solar collector which is a separate
problem with many different possible solutions.

What sort of "baby steps" could be used to test the hot air turbo system?
Could a turbo be connected with tubing and a propane torch on the hot side
and an ice pack on the cold side? What is the minimum requires to see ANY
movement even without real power generation?

---
James Newton, massmind.org Knowledge Archiver 
james@massmind.org 1-619-652-0593 fax:1-208-279-8767 
All the engineering secrets worth knowing:
http://techref.massmind.org What do YOU know?


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