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Bolthole location

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Re: Bolthole location
Post by Theemile   » Mon Nov 11, 2019 5:14 pm

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TFLYTSNBN wrote:Remember the density of liquid hydrogen? 1/4 mass is going to be a huge percentage of the ship volume.



IIRC, Weber has mentioned​ that Honorverse ships use aneutronic fusion reactions that consume Beryllium or Boron.

Of course it would be far more plausible to burn Deuterium rathan than normal Hydrogen.[/quote]

When was that change? there are dozens of references to hydrogen fuel in the books.
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RFC said "refitting a Beowulfan SD to Manticoran standards would be just as difficult as refitting a standard SLN SD to those standards. In other words, it would be cheaper and faster to build new ships."
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Re: Bolthole location
Post by kzt   » Mon Nov 11, 2019 6:00 pm

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I pointed out many years ago that you get much more efficiency storing is as water. But that isn't what David has done, he’s used liquid hydrogen. Honorverse fusion reactors are dense and hot enough that you don't need to use deuterium, regular H will fuse.

Edit:Typos
Last edited by kzt on Tue Nov 12, 2019 1:07 am, edited 1 time in total.
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Re: Bolthole location
Post by ThinksMarkedly   » Mon Nov 11, 2019 10:27 pm

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TFLYTSNBN wrote:IIRC, Weber has mentioned​ that Honorverse ships use aneutronic fusion reactions that consume Beryllium or Boron.

Of course it would be far more plausible to burn Deuterium rathan than normal Hydrogen.


Since we're going to dream, we should dream of the most efficient aneutronic fusion, which is ²D + ³He. See Aneutronic fusion (Wikipedia). Or, better yet, just like the Sun, a proton-proton chain.
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Re: Bolthole location
Post by TFLYTSNBN   » Wed Nov 13, 2019 4:02 pm

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ThinksMarkedly wrote:
TFLYTSNBN wrote:IIRC, Weber has mentioned​ that Honorverse ships use aneutronic fusion reactions that consume Beryllium or Boron.

Of course it would be far more plausible to burn Deuterium rathan than normal Hydrogen.


Since we're going to dream, we should dream of the most efficient aneutronic fusion, which is ²D + ³He. See Aneutronic fusion (Wikipedia). Or, better yet, just like the Sun, a proton-proton chain.


Any time you fuel a fusion reactor with a mixture of fuels that include Deuterium, you are going to get side band reactions that emit neutrons.

Those Bussard ramships that could accellerate at one gee for decades that I grew up reading about are fantasy. You need some type of direct matter to energy conversion to power them.
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