Re: [PSUBS-MAILIST] Kreislauf system

[MerlinSub@t-online.de (Carsten Standfuss)]

Hi Doc - hmm.. difficult. 

I have a book here "Submarine and Torpedos with Close cycle drives"
>From the famous german submarine WWII builder Kurzak and Rößler
Kiel 1969. 162 pages plain german.. 

Conclusion from this guys - the machinery bulkhead must be gas tight
and the hole drive remote control. 

Conclusion for me during research the drive of Euronaut : 

A unmmaned machinery room with a diesel - and the hole machinery space
as exhaust close cycle is the simplest solution. The walls of the
Machinery space works also as cooler for the exhaust - and a CO2 washer
removes the CO2 from the process and press it via compressor outboard. 
The drive is not deep-undependably because if you get deeper the
compressor has to do more work. 

I decided to go with a fuelcell with seems from many 
points the better solution: 

+ much more range..
+ no heat or exhaust or running parts
+ no remote engine room
+ no deep limits

but: 
- price
- Gas supply
- hydrogen leaks

Its easy to build a close cycle diesel system - the best will be a
diesel electric system with a power plant at a constant speed. 
Make the regulation more simple. 

Another way will be to put this powerplant in a closed cylinder
inside your machinery space. You have than a black box in your 
machinery space and if somethings goes wrong with the fumme, exhaust,
fuel it gives you the time to surface. 

I never thing that it is a good soluotion to have a petrol drive in a
submarine - many petrol driven subs of WWI exploded -and even my petrol
driven motorboot meets the same fate. 

A small diesel in a close compartment and remote controlled with the
walls make from steel with cooling rips inside seems a solution for a
compact psubs required higher speeds. Then compartment will get very 
wet because diesel contains a lot of water.. Everything inside sholud be
made from non steel material in this hot wet and acid conpartment.. 

	I--------------------------------I
	I    (Oxygenbottle)= valve->     I
        I				 I
	I    Diesel with generator	 I-E-Power->	
        I 				 I 
        I   CO2 washer and compressor    I -CO2->
        I                                I  
        ---------------------------------

best regards Carsten


Doc schrieb:
> 
> Guten Morgen Carsten,
> 
> What information is available on the Kreislaufsystem and are they
> still in some form of development over there?
> I've exhausted the tech resources here and in the UK for a practical,
> reasonably priced petrol or diesel system for
> my Bionic Dolphins and I'm interested in possibly building on the old
> technology and scaling it to psub size.
> 
> Danke
> 
> Doc
> 
> > Kreislaufsystem = Close cycle (of an diesel engine or diver
> > rebreather)
> >
> > best regards, Carsten
> >
> > Michael B Holt schrieb:
> > >
> > > This is one for Carsten:   Does the name mean 'closed cycle,' or
> > is it
> > > the name of a person?
> > >
> > > Mike H.
> > >
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