09V/09VI (095/096) Nuclear Submarine Thread

Aspide

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Reactor, or rather nuclear steam production plant, is not driving or charging anything, It produces steam to drive a steam turbine. which could be coupled to the propeller via a gearbox or will drive electric generator which will produce electric power which can either drive electric engine directly or can be stored in electric batteries which will drive electric mover.
 

mister unknown

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My layman's understanding is that a "turbo electric drive" is a bit different from an "integrated electric propulsion", even though they're conceptually similar (perhaps the latter is inclusive of the former?).

Here's my layman's interpretation:

Reactor boils water & converts it to steam --> steam generates electricity --> electricity gets stored in a battery --> battery sends electricity to the point of consumption.

I'm fuzzy on the nuanced differences between turbo electric & integrated electric, & I'm still confused as to which system (TED or IEP) is featured on the Type 09V... can someone help clarify for me?
 
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Blitzo

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My layman's understanding is that a "turbo electric drive" is a bit different from an "integrated electric propulsion", even though they're conceptually similar (perhaps the latter is inclusive of the former?).

Here's my layman's interpretation:

Reactor boils water & converts it to steam --> steam generates electricity --> electricity gets stored in a battery --> battery sends electricity to the point of consumption.

For a more generic understanding, replace the reactor and steam turbine with just "prime mover" (it can be gas turbine, diesel, conventional steam turbine, or nuclear reactor with steam turbine) first.

It's more like "prime mover" --> connected to gensets generating electricity --> (frequency converter as needed) --> then to propulsion motor (+ ship services, if it is IEPS).

There are of course various permutations of this depending on the type of prime mover that is connected to the genset, and the propulsion motor/shaft itself may be combined with a direct prime mover that's mechanically connected to the shaft.


I'm fuzzy on the nuanced differences between turbo electric & integrated electric, & I'm still confused as to which system (TED or IEP) is featured on the Type 09V... can someone help clarify for me?

We don't know if 09V has any form of electric propulsion at all. It *might* have it, but we don't know it definitively.

For all we know it may have regular mechanical steam turbines driving the shaft directly.


As for the difference between turbo electric versus IEP, my understanding is that both have the main propulsor be driven by electrical motors, but IEP has the addition of having the entire ships service load and propulsion in a single grid, while turbo electric keeps propulsion and service in their own separate grids.
 
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tphuang

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As for the difference between turbo electric versus IEP, my understanding is that both have the main propulsor be driven by electrical motors, but IEP has the addition of having the entire ships service load and propulsion in a single grid, while turbo electric keeps propulsion and service in their own separate grids.
Are their nuclear submarines using turbo electric right now? I'm not aware of any. I wonder if this is just because we didn't have powerful enough electric Motor before when the current generation of nuclear subs were being designed.
 

Blitzo

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Are their nuclear submarines using turbo electric right now? I'm not aware of any. I wonder if this is just because we didn't have powerful enough electric Motor before when the current generation of nuclear subs were being designed.

Sorry, I don't understand your question.

Mister unknown's previous post was asking whether 09V used turbo electric or integrated electric propulsion.

In my full post, I am saying that we don't know if 09V uses any form of electric propulsion (turbo electric or integrated electric) in the first place. You've quoted a section of my post which omitted the part where I wrote:

"We don't know if 09V has any form of electric propulsion at all. It *might* have it, but we don't know it definitively.

For all we know it may have regular mechanical steam turbines driving the shaft directly"
 

Tomboy

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Are their nuclear submarines using turbo electric right now? I'm not aware of any. I wonder if this is just because we didn't have powerful enough electric Motor before when the current generation of nuclear subs were being designed.
Suffren class(2020), Tullibee(1960), Lipscomb(1974). These are just the ones that have actively served, there are some more weird prototypes and special mission submarines with turboelectric propulsion.
 

Blitzo

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Are their nuclear submarines using turbo electric right now? I'm not aware of any. I wonder if this is just because we didn't have powerful enough electric Motor before when the current generation of nuclear subs were being designed.

Suffren class(2020), Tullibee(1960), Lipscomb(1974). These are just the ones that have actively served, there are some more weird prototypes and special mission submarines with turboelectric propulsion.

Lol, if tphuang intended to ask "are there any nuclear submarines using turbo electric right now" (as opposed to "are their nuclear submarines using turbo electric right now" <--- which means like it was asking about the PLAN), then the answer is yes, there are nuclear submarines in the world which are turbo electric, and in service actively.

The French have the Suffren class SSN, but there's also the Triomphant class SSBN before it which are nuclear turbo electric.


Of course, for not yet in service but upcoming classes, the Dreadnought and Columbia class SSBNs will be nuclear turbo electric.
 

Tomboy

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Lol, if tphuang intended to ask "are there any nuclear submarines using turbo electric right now" (as opposed to "are their nuclear submarines using turbo electric right now" <--- which means like it was asking about the PLAN), then the answer is yes, there are nuclear submarines in the world which are turbo electric, and in service actively.

The French have the Suffren class SSN, but there's also the Triomphant class SSBN before it which are nuclear turbo electric.


Of course, for not yet in service but upcoming classes, the Dreadnought and Columbia class SSBNs will be nuclear turbo electric.
Oops, sorry about that. Must've misread
 

Blitzo

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Oops, sorry about that. Must've misread

Your answer makes sense if his post was typed incorrectly and if he intended to ask "are there any" rather than "are their". His question makes more sense as the former rather than the latter as well, but i'll let him clarify what he actually wanted to ask.
 
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