Abstract
The purpose of this paper is to offer the specific data for calculating the amount of heat exchange between the human body and environments by radiative heat transfer. The total body surface area was measured. Radiative heat transfer areas of the naked human body for the following nine body postures were measured: standing, chair sitting, seiza sitting, cross-legged sitting, sideway sitting, both-knees-erect sitting, leg-out sitting, lateral and supine postures. The results showed that the radiative heat transfer area of the naked human body in the standing posture was 0.773, the chair sitting posture was 0.732, the seiza sitting posture was 0.621, the cross-legged sitting posture was 0.606, the sideway sitting posture was 0.634, the both-knees-erect sitting posture was 0.609, the leg-out sitting posture was 0.686, the lateral posture was 0.712 and the supine posture was 0.708. The radiative heat transfer areas of the naked human body showed clearly that it is strongly influenced in the postures.
