Imagine a person standing naked in a room at 23.0°C. The walls are well insulated, so they also are at 23.0°C. The person's surface area is 2.20 m2 and his basal metabolic rate is 2167 kcal/day. His emissivity is 0.97.
(a) If the person's skin temperature were 37.0°C (the same as the internal body temperature), at what net rate would heat be lost through radiation? (Ignore losses by conduction and convection.)
(b) Clearly the heat loss in (a) is not sustainable-but skin temperature is less than internal body temperature. Calculate the skin temperature such that the net heat loss due to radiation is equal to the basal metabolic rate.
(c) Does wearing clothing slow the loss of heat by radiation, or does it only decrease losses by conduction and convection? Explain.