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A composite spherical shell of inner radius r1 = 30 cm is constructed from lead of...

A composite spherical shell of inner radius r1 = 30 cm is constructed from lead
of outer radius r2 = 33 cm and AISI 304 stainless steel of outer radius r3 = 36 cm. The cavity
is filled with radioactive wastes that generate heat at a uniform rate. The container is
submerged in oceanic waters that are at a temperature of 10◦

C and provide a uniform

convection coefficient of 450 W/m2

K at the outer surface of the container. Calculate the

volumetric heat generation rate if the inner surface temperature (T1) is 1150◦
C.
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