Center for the Built Environment

This paper provides projected area factors for each part of a sitting person to allow the radiative heat transfer between the human and surrounding surfaces to be calculated. We first briefly describe ways of calculating angle factors and effective radiation area for each segment of a sitting person. Then we describe an approach to measuring projected area factors using a manikin. Projected area factor distributions are presented, and then effective radiation area and angle factors are calculated and compared with the results of other studies.