Question
In: Physics
Calculate the critical radius of the core of a spherical thermal reactor moderated by graphite both...
Calculate the critical radius of the core of a
spherical thermal reactor moderated by graphite both with and
without (bare) an infinite reflector of graphite to show reflector
savings. The reactor (at room temp.) is fueled with 235U at a
concentration of 4.0 x 10-4 gm/cm3
Solutions
Expert Solution
given concentration that is density = 4
10-4 g / cc
the relation of critical mass and critical radius is
critical mass mc = fuel concentration
volume 
4
10-4
( 4 
/ 3 ) Rc3
critical radius Rc3
( 3
0.0034 ) / (0.0004
4
)
( 0.0102 / 0.005024 )
2.3025477
Rc
( 2.3025477 )1/3 = 1.2662424 cm .
genius_generous answered 7 months agoRelated Solutions
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