ET* and SET*: Its Originality and Characteristics

Abstract

ET*, an index adopted as ASHRAE standard (ASHRAE.1992) to evaluate thermal environments, is used widely for evaluation, design and control of such environments. This paper deals with the originality and characteristics of ET*. It also explains how problems of ET* that have been identified influence the practical use of this index, and identifies matters that require attention with regard to such problems, based on the results of experiments conducted for subjects in the sedentary posture.