Determine the temperature distribution and rate of heat flow per foot length from a 5 cm outer

Question:

Determine the temperature and rate of heat flow per foot length from a 5 cm outer diameter pipe at 180 oC placed eccentrically within a larger cylinder of insulation (k = 0.058 W/m-oC) as shown in Figure P13-38. The diameter of the outside cylinder is 15 cm, and the surface temperature is 10 oC.
Figure P13-38

Distribution
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