Subject: floating piston revisited
From: Rotary Engine
Date: 2/1/2006, 4:37 PM
To: AA-me



David,   coolant capacity for my installation is between 7 and 8
quarts. Eight quarts = 7.5 liters.  I am interested in buying one,
once you have completed testing.   Jerry

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Ok, should be able to do so

BTW the simplified version will look very much like this.
This is simpler to make and just as robust.
This is also very easy to service if required, no specials tools
I've just got to keep the air out!

Regards David Gaze. :)

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How do you plan to deal with steam?

"One gallon of water makes [1325] gallons of steam."

Paul Lamar

---------------

Im sure I'm going to repeat or state things that everybody knows so
sorry before hand.

The above maybe true under no pressure.

If it is under pressure this is completely or almost completely
suppressed except at the hottest points, in the engine
near the combustion chambers and exhaust  areas in the cooling system,
Once leaving those hot spots
in the cooling system "steam"  will merge back into solution, if it
can't then the engine boils.

Now I'm sure you have opened the radiator cap on an engine and you get
steam.
That was because you released the pressure. so now the steam has
somewhere to go, it also is giving
up its accumulated energy to the air directly as it evaporates.  The rest
of the coolant is still in liquid state
and will absorb energy from the coolant that has gone to steam (necleate
boiling) the steam will return to
a liquid state. (phycis 101). If it doesn't the engine will boil and
pretty quick smart. as this almost boiling
coolant passes through the radiator the extra energy  in this case heat
is removed so that the coolant can
go back into the engine and do the same thing all over again and
again.................................
The art and the balancing act of colling system design. :)


Take a "pressure cooker" it only starts to release steam once the water
in it is boiling which will above 100 deg C (212 deg F) at 1 atmosphere.
To us we will consider this to seal level. If you had a way to allow
expansion by volume without letting it turn to steam and you could see
into it
you would find either no steam or a very fine film of steam in te region
of a few thousandths of an inch.
Of course we must control the heat input into the pressure cooker
....................ah

.........................I have an idea a cooling system to get rid of
the excess heat :)

.................................................... sorry about
that.....................

Regards David Gaze


If you continue to heat the water the pressure will continue
to build eventually bottoming out the piston and cause a major
failure somewhere else. Steam boilers are known for blowing
up from time to time.

If you have steam coming out of your cowl in a simple pressure can
system with a pressure relief cap you can back off on the power and find
a place to land while you still have some coolant left in the engine.
If you are lucky the engine temp will drop low enough at reduced power
to stop generating steam. In other words you have a warning.

With an accumulator system the first warning is a burst radiator
with all the coolant departing overboard shortly through the hole.

Just like a steam locomotive engineer you need to keep your
eye on the temp pressure gage.

Paul Lamar ...No rotor no motor.

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