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Comment: Re:Using steam. (Score 1) 217 217

The coolant on the nuke power plant is NOT likely to be water

It certainly isn't, but it transfers its heat to distilled water that ultimately serves as the working fluid in the propulsion engines. It also heats the distillation plant that provides that distilled water for the engines and all the other water users aboard.

Comment: Re:I don't get the point of this thing... (Score 4, Interesting) 217 217

The carriers are all nuclear which means they boil sea water to turn steam turbines.

No. Only a very modest amount of seawater gets boiled in a distillation plant heated by the reactor; the resulting freshwater goes into the propulsion engines, which are closed Rankine cycles. Water goes round and round from boiler to turbines, to a seawater-cooled condenser that turns it back into liquid, to the boiler again. Lather, rinse, repeat. If you tried to use seawater in the propulsion plant, it would fill up with salt in a matter of hours. The distillation plant only supplies enough water to the engines to replenish what leaks out; the rest of its output goes to the catapult system.

The EM system means you have high voltage lines running under the decks

Ever been in the same space with a battle-damaged steam line?

such big industrial machines are hydraulic in most cases. They rely on pressure

Steam machines rely on pressure times volume, which is an order of magnitude increase in control problems.

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