Diablo Canyon stores 95% of its spent nuclear fuel onsite. ii) How many metric tons of Pu-240 in the spent fuel will still be onsite in that year?
Assume the following:
●In a light water reactor, approximately 1.0kg of spent nuclear fuel is produced for every50. megawatt-days (MWd) of thermal energy input.
●For the purposes of this analysis, assume the spent nuclear fuel produced is 1.8% Pu-240by mass. Pu-240 has a half-life of 6,430 years.
●The thermal efficiency of the power plant is 38%
●Use equation for radioactive decay: Qt= Q0^e-kt where:
○Qt = quantity of radioactive material at time t
○Q0 = original quantity of radioactive material
○k = the decay constant
○t = time interval in years
○The decay constant k is defined by the relation: Half life = ln(2)/k
Diablo Canyon stores 95% of its spent nuclear fuel onsite.
ii) How many metric tons of Pu-240 in the spent fuel will still be onsite in that year?
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