Considere a person who consumes 2100 kcal par day, of which 2000 kcal is converted tu hermal energy.( the remaining 100 kcal is used to do work on the environment.) The person has a surface area of 1.8 m² and is dressed in a bathing suit.
a) The person is in room at 20°C, with a convection heat transfer coefficient of 3 W/m².K. At this air temperature, the person's average skin temperature.
B) If the temperature of the environment were 33°C, what rate of perspiration would be needed to maintain a comfortable skin temperature of 33°C?