In this problem, you will consider the balance of thermal energy radiated and absorbed by a person.
Question:
In this problem, you will consider the balance of thermal energy radiated and absorbed by a person. Assume that the person is wearing only a skimpy bathing suit of negligible area. As a rough approximation, the area of a human body may be considered to be that of the sides of a cylinder of length L=2.0m and circumference C=0.8m.
For the Stefan-Boltzmann constant use σ=5.67×10 -8 W/m 2 /K 4 .
If the surface temperature of the skin is taken to be T body =30 ∘ C, how much thermal power P rb does the body described in the introduction radiate? Take the emissivity to be e=0.6.
Express the power radiated into the room by the body numerically, rounded to the nearest 10 W.
Discrete Time Signal Processing
ISBN: 978-0137549207
2nd Edition
Authors: Alan V. Oppenheim, Rolan W. Schafer