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Post by goduranus on Nov 11, 2016 6:47:57 GMT
So, in thermal thrusters, regular water dissociates less than 1%, but (semi-) heavy water dissociates near 100% when you get near the melting point of the fuel rods. Is this real? What accounts for this difference?
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Post by someusername6 on Nov 11, 2016 17:31:15 GMT
Can you post samples for both thrusters?
My intuition is that one has a different flow rate than the other, but this is just wild guessing.
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Post by goduranus on Nov 11, 2016 18:15:23 GMT
just take the stock Water NTR, switch to heavy or semiheavy water, and observe the difference in disassociation %
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Post by zuthal on Nov 11, 2016 19:52:05 GMT
For semiheavy water (HDO), it shouldn't really, at least I don't see why from the game data... Semiheavy water has a bond dissociation energy of 931.68 kJ/mol, compared to 927.01 kJ/mol for just water. So... no clue. The only thing that might be it is what qswitched mentioned on his blog for hydrogen deuteride, that the Gibbs free energy of formation for monoatomic deuterium is lower than for monoatomic hydrogen.
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