4. (20 pts) You are in charge of an industrial donut hole production process.The donut holes are cooked in a preheated convection oven at 200 °C, andthey are considered fully cooked when the temperature at the centerreaches 150 °C. The donut holes have a diameter of 2.5 cm, which you mayassume to be constant during the baking process. The average specificheat of the dough is 1.15 kJ/kgK, its average conductivity is 0.084 W/mK,and its average density is 0.98 g/cm (in reality these quantities changeduring baking, but you may assume they are constant). The effective heattransfer coefficient between the donut holes and the air in the oven is12 W/m K. You may ignore heating by radiation from the oven walls.

Solved: 4. (20 pts) You are in charge of an industrial donut hole production

Home
questions and answers
4 20 pts you are in charge of an industrial donut hole production proc

Question

4. (20 pts) You are in charge of an industrial donut hole production process.The donut holes are cooked in a preheated convection oven at 200 °C, andthey are considered fully cooked when the temperature at the centerreaches 150 °C. The donut holes have a diameter of 2.5 cm, which you mayassume to be constant during th