Consider a person standing in a room where the average wall temperature is 20 °C. This person is trying to reach the "thermal comfort" by adjusting the A/C air temperature.

Find out the appropriate air temperature to set. Assume that this person is just standing relaxed. Consider the human average surface area and temperature to be 1.6 m² and 29 °C, respectively.The convection heat transfer coefficient, ai remissivity, and Boltzmann's constant are 6 W/m².K, 0.95, and 5.67e-8 W/m².K“, respectively.