Hi, discussion about radiation risk, make me think about Hydrogen explosion risk on Ni+H reactors for dayly use...
from Defkalion Hyperion spec sheet I've estimated they use a bottle of 32grams of H2 (200bar, 2liters), thus 16mol of H2 from wikipedia the estimated burning energy is 16molH2*286 kJ/molH2=4.576MJ what is the concrete energy of a 4.6MJ explosion? it is about 1.7 kgTNT equivalent ? ( TNT=2.72MJ/kg) this seem equivalent to the energy of 92g of butane, (2.88MJ/mol 58g/mol butane) this mean about 1/5 or a camping-gaz CV470 http://cv470.co.uk/ I know that in France, in collective buildings, usual big butane bottle are forbidden to protect firemen, but few CV470 are allowed. however the big difference with H2 is that - H2 leaks through many solids - H2 sure will ignite - H2 can burn at very low flow rate(few µg/s) what is your opinion. can you tell us what danger it is to compare to in real life?
