XPost: uk.d-i-y   
   From: noone@nospam.com   
      
   Στις 16/9/2021 4:49 μ.μ., ο/η gareth evans έγραψε:   
   > After following the Vigil TV series (with all its   
   > reported errors) and also the prog on HMS Trenchard,   
   > when a Brit U-boat is powered by nuclear fuels, how   
   > do they condense the steam?   
   >   
   > With sea water? If so, there must be difficulties   
   > in sealing the intakes and outfalls from deep sea   
   > pressures.   
   >   
   > Perhaps the steam is heated to 200C and only cools to   
   > 100C through the turbines before recirculating   
   > so no condensing is   
   > required. This, of course, will be wasteful   
   > of some thermodynamic energy, but there's so much   
   > in reserve in the nuclear fual that perhaps it does not   
   > matter.   
   >   
   well, the expected answer is with sea water, the same "coolant" that   
   convential ships use. I read once a german article about the sinking of   
   the US submarine "Thresher", that was designed to go deeper thna usual,   
   and that was not combined with welding of its pipes, instead of   
   soldering, to withstand the higher pressures involved, also they needed   
   a "clean room" to work, so it's possible that a speck of dust sank the   
   300 m submarine! Also that it needed a more powerful air compression   
   system, so it could "blow" its ballast tanks in distress, especially   
   following a reactor SCRAM.   
      
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