[ANSWERED] 1. The buried pipeline in Figure P13–29 transports oil with an average temperature of 60 F. The pipe

1. The buried pipeline in Figure P13–29 transports oil with
an average temperature of 60 F. The pipe is located 15 ft below the surface of
the earth. The thermal conductivity of the earth is 0.6 Btu/(h-ft-F). The
surface of the earth is 50 F. Determine the temperature distribution in the
earth.
2. For the circular body with holes shown in Figure P13–31,
determine the temperature distribution. The inside surfaces of the holes have
temperatures of 150 C. The outside of the circular body has a temperature of 30
C. Let K
xx
= K
yy
= 10 W/(m C).