Imagine a person standing naked in a room at 23.3°C. The walls are well insulated, so they also are at 23.3°C. The person’s surface area is 2.20 m2, and his basal metabolic rate is 2167 kcal/day. His emissivity is 0.970. a) If the person’s skin temperature were 35.7°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) The heat loss is not sustainable—but skin temperature is less than internal body temperature. What will be the skin temperature( in Celsius) such that the net heat loss due to radiation is equal to the basal metabolic rate? c) How does wearing clothing slow the loss of heat? Choose one of the following: a. by convection b. by conduction and convection c. by conduction d. by radiation
Imagine a person standing naked in a room at 23.3°C. The walls are well insulated, so they also are at 23.3°C. The person’s surface area is 2.20 m2, and his basal
a) If the person’s skin temperature were 35.7°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) The heat loss is not sustainable—but skin temperature is less than internal body temperature. What will be the skin temperature( in Celsius) such that the net heat loss due to radiation is equal to the basal metabolic rate?
c) How does wearing clothing slow the loss of heat?
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