At a certain location the thermal conductivity of the earth is 1 5 W m C At this location an isothermal sphere having a temperature of 5C and a diameter of 2 0 m is buried at a centerline depth of 5 0 m The earth temperature is 25C Calculate the heat gained by the sphere ...

At a certain location the thermal conductivity of the earth is 1.5 W/m C. At this location

Question:

At a certain location the thermal conductivity of the earth is 1.5 W/m· ºC. At this location an isothermal sphere having a temperature of 5ºC and a diameter of 2.0 m is buried at a centerline depth of 5.0 m. The earth temperature is 25ºC. Calculate the heat gained by the sphere.