Large, cylindrical bales of hay used to feed livestock in the winter months are D = 2 m in diameter and are stored end-to end in long rows. Microblal energy

generation occurs in the hay and can be excessive if the farmer bales the hay in a too-wet condition. Assuming the thermal conductivity of baled hay to be k= 0.04 W/m K,determine the maximum steady-state hay temperature for wet hay in "C (4 = 100 W/m3). Ambient conditions are To - 0°C and h 25 W/m2 K. (Note: Farmers are concerned with baling hay if too wet as the bales will catch on fire due to the heat generation.)