Abstract
This paper aims to introduce the indices on the effect of asymmetric and uneven thermal radiation upon the human body. Partial mean radiant temperature and partial operative temperature were defined on each plane of the rectangular solid as a model of the human body. Standard deviation of the partial mean rediant temperatures was applied to the indication of asymmetry and unevenness of the radiation field. This quantity was named thermal radiation unevenness. Experiments were carried out to verify these indices. Local skin temperature and local thermal sensation vote corresponded to the partial mean radiant temperature and partial operative temperature. The thermal radiation asymmetry and unevenness can express the unevenness of the partial mean radiant temperature on each plane of the rectangular-solid.