A review on different methodologies to study thermal comfort

Thermal comfort has been the area, which is explored extensively by the researchers to improve the performance of human being. This vast field has been studied by two different broad ways, namely experimental and theoretical. This paper comprehensively reviews these two methodologies in detail. The experimental study in this field has been categorized through two different ways, adaptive and rational. In former, the experiments are performed in the actual environment and in later, the experiments are performed in a climate simulator. This paper also reviews the theoretical study by discussing different mathematical models which are required in the study. Different ways of theoretical analysis, namely steady-state and transient state, have been reviewed along with solving methods. Different factors affecting thermal comfort have been summarized. At last, future scope related to this field has been discussed.