The exhausts/funnels of Sichuan indicate that the LHD is powered by 2x gas turbine engines and 6x diesel engines as her main engines, in addition to 5x supplementary diesel engines.
where are the supplementary diesel engines? Also, why is there need for supplementary engines in this case? If one or two engines breakdown, they can still have a short burst at top speed since the IEPS (or IPES they call it here) relies on batteries (if I read the photos correctly) to power the motors.
Just an oversimplified schematic illustrating the IPES on the 076 LHD. Posted by @应用技术联合体 on Weibo.
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basically we have a range extender set up with 076 propulsion. I think they actually use propulsion setup like this with a lot of civilian ships already, but those don't have the same power/speed requirements so I think they just use one main marine engine and maybe a backup.
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I've found where "two motor per shaft" is mentioned. It was in the 076 tender. It says "series shaft electrical propulsion". At the time when I see it I thought it can be two electric motors per shaft, but there is a small chance that it is one electric motor on a direct driven shaft (gearbox to GT). The later can not be 100% excluded because there was another paper discussion such configuration for big ships.
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why would you do that though? that's would entirely bypass the efficiency you get from centralized power generation that charges the batteries to power each motors.
