Answered step by step
Verified Expert Solution
Question
1 Approved Answer
A1 m radioactive rod (k=0.45 W/m.K) whose diameter is 3 cm is to be covered with material X (k = 1.5 W/m.K). The rod generates
A1 m radioactive rod (k=0.45 W/m.K) whose diameter is 3 cm is to be covered with material X (k = 1.5 W/m.K). The rod generates heat with wall temperature of 60C and is placed at a surrounding T = 28.5C with convective coefficient of h = 88 W/m.K. Assume the heat flows only in radial direction at steady state. From the energy balance for cylindrical geometry, show the derivation integration) for temperature distribution with heat generation. State all the boundary conditions. Calculate a. the temperature at r=0 and r=0.8 cm in the radioactive rod. 1 T 1a ra OT 1 a 1 027 021 + + p2 062 22 k a a b. C. Determine the thickness of material X, if the heat loss to the surrounding is to be maximized. Calculate the heat loss and outer surface temperature. The rod is now encapsulated with material X with thickness from (b). 200 circular aluminum fins (k = 160 W/m.C) of 1.5 cm length and thickness t = 2 mm are attached to material X. Determine the increase of heat loss as a result of adding the fins, and the outer surface temperature
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started