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The main parts of a commercial tokamak would be huge. I read once that due to thermal stresses, replacement might be needed annually. I seem to recall that the
by wrp 5y ago
The main parts of a commercial tokamak would be huge. I read once that due to thermal stresses, replacement might be needed annually. I seem to recall that the STARFIRE project[1] estimated nearly 60 tons of low-grade radioactive waste per year of the operational lifetime.
[1] https://www.sciencedirect.com/science/article/abs/pii/0029549381900443 https://www.sciencedirect.com/science/article/abs/pii/002954...
- labawi 5y agoPower plant waste: 60T/y for 1200 MWe = 50g / kWe·y = 1.6 mg/MJ Coal energy density: 24 MJ/kg = 0.024 MJ/g -> 42 g/MJ Not perfect, but depending on what the waste is, doesn't seem too bad.
- chongli 5y agoCoal is absolutely the worst so it may not be a fair comparison. How would fusion compare to renewables like solar or wind?