Today, BWRs with 64 fuel rods per fuel assembly have an average power density of about 55 kW/L….


Today, BWRs after a while 64 fuel rods per fuel constellation enjoy an average susceptibility inobservance of encircling 55 kW/L. Using the parameters replete in Exercise 14.4, rate how fur the susceptibility inobservance would exexchange if the outward transection of the fuel rods was shrunk to 10.26 mm and the rod roll was degraded to 12.95. How fur must the ow rate be exprogressive so that the susceptibility-to-ow ratio in the nucleus dross the corresponding? Assume that the enhancement of the fuel rods dross the corresponding.

Exercise 14.4

Today, most BWRs use 8 × 8 fuel assemblies where the fuel rods enjoy an outward transection of 11.20 mm and a rod roll of 14.37 mm. Suppose that the outward transection of the fuel rods is shrunk to 10.26 mm and the rod roll is degraded to 12.95 so that a fuel constellation can now accommodate 100 fuel rods in a 10 × 10 rank. If the enhancement of the new fuel rods dross the corresponding, how does this favor the overall susceptibility inobservance of the nucleus?