Question

Assuming fission-product decay power must fall to 15 MWt before refueling can begin, estimate the minimum cooling time in days for fuel irradiated to t₀=2 years required for a Westinghouse reactor with a full power of 3411 MWt.  Use Eq. 2-10 from Chapter 2 to estimate the decay heat power.

(Note that for 0 < t < 1 week, the term is constant and equal to 0.0275.)

Eq 2-10: P(t)/Po = (6.6x10^-2)(t^-0.2 - (t + t_o)^-0.2)

Answer 1

Answer:- fall Given that conation is - The fussion Product of decay Power must to 15mW' => N(1) = No Ch since the decay rate is constant for a nealtion material, the power generation will fall by some reaction als fall in the fractionor atom's get to decay No 3u11 3 =) = logia Cul) 1 =219Valu) =2x7.829.4r. =).. 15.658 years, .. Hence the given years of canation Proved. is