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Weight of an uranium fuel

Posted: Fri Jul 28, 2017 2:26 pm
by cpy
Uranium have 80,620,000MJ/kg or 80 620GJ/kg. Uranium fuel cell have 8GJ of energy. But we know it's not used very efficiently. Max reactor efficiency could be +400%? So let's make it 40GJ. That would mean 0.49g of uranium in one fuel cell.

I guess that ore is probably very lightweight and poor. Even if you assume only 50% efficiency at max reactor enclosure you'd still get just 1g per 1 fuel cell.