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Re: [PSUBS-MAILIST] Closed circuit engines
This technic had been much improved since and it is
used today in elaborate combat swimmer delivery vehicles.
It is a close circuit diesel, exhaust is recycled
with liquid oxygen tank and scrubber. It is perfectly clean, silent and
stealth.
There is a risk with gas engines, because gas
has a lower ignition temp it could explode at depth under pressure. this is
why diesel fuel is preferred.
Herve
----- Original Message -----
Sent: Thursday, January 09, 2003 9:39
PM
Subject: [PSUBS-MAILIST] Closed circuit
engines
Seems like the Germans researched this in the late 20s and
early 30s.
One researcher was jewish and forced out by the NAZIs.
My
understanding is that the 4 cycle engines that are gasoline fuelled
can use
their exhaust when spiked with oxygen or air as both a fuel
component plus gasoline vapor from the carburetor and as air
supply.
I wonder what carbon monoxide dissolves in or is absorbed
by.
Carbon dioxide, of course, is absorbed by soda lime.
I do
wonder if carbon monoxide is bled into the water, will it kill fish?
I
don't know what the relationship in cost is between compressed air
and
oxygen.
I have wondered whether a 4 stroke engine could be run in an
inert atmosphere
that wouldn't support combustion. Maybe then there
would be less of a fire hazard
with gasoline.
If the exhaust gases are
cooled in the muffling process, then their volume will
decrease though
becoming denser.
Seems to me that the Germans in their WWI subs innovatwed
the practice of using
the exhaust diesel gasses to finish bowing out their
ballast tanks. I don't know
how practical that would be for a
personal sub.
Just thinking and pondering
Larry
Murray