Thursday, February 26, 2015

Reader comments -- conventional submarine engines

MHalblaub

Kawasaki designs no fast running 4-stroke diesel engines of such power. They uses license built MAN diesel engines.
The MTU 396 SE series for submarines will be replaced by the smaller but more powerful MTU 4000 series.
http://www.mtu-online.com/file...
The MTU 4000 is available up to 1865 kW.
MTU engines of both series are already maintained today in Australia by Detroit Diesel (a subsidiary of MTU).
http://www.mtudda.com.au/indus...
Some countries even ordered MTU engines for their Scorpene-class submarines.


======

Concerned



===


Johnno

Time out gentlemen please. There is a problem to get over.
Collins is not just among the largest conventional submarines around it is also the most powerful.
I spent a little time looking at the web and it is instructive.
The Collins has 3 Hedemora 18 cylinder hooked to Jeumont Schneider generators each rated at 1.4 MW (1.4 X 3 = 4.2 MW).
The German 214 has 2 MTU 16V diesels hooked to Pillar generators each rated at 0.97MW (0,97 X 2 = 1.94MW). It also has fuel cells, I cannot find any figures but fuel cells are kW not MW.
The Japanese Soryu class has 2 Kawasaki diesels (very little data is available beyond a total generator capacity of 2.9 MW). 2.9 MW suggests that the Kawasaki diesels are of similar power to the Hedemore but only 2 are installed perhaps to make room for 2 Stirling AIP engines which are rated at around 200kW.
No one would be mad enough to suggest Hedemore in any Mk 2 Collins so any Mk 2 Collins would end up with a totally redesigned engineering space, probably Japanese. No small task.
On the governments plan to compete Japanese, German and French designs, it also raises the question on how the Germans would power any enlarged design. If they went to 3 diesels of their current type in an enlarged hull that would only give them you around 2.8MW plus AIP. There is unlikely to be room for 4 diesels unless AIP was dropped.
All looking very interesting.





.

No comments: