Thermal Comfort Assessment of Occupants in Special Vehicle Cabin

Abstract

AbstractDue to the specific function and ventilation limitation, the cabin of special vehicles is generally narrow and enclosed, in which occupants are faced with uncomfortable conditions such as high heat load, less cold source, and lack of fresh air. The thermal comfort assessment method is a crucial research premise of thermal environment and thermal comfort. Therefore, it is necessary to study the thermal comfort assessment method of occupants in the special vehicle cabin. Firstly, this paper analyzed the distribution characteristics of a variety of typical environmental parameters and the subjective assessment results of the occupants on the surrounding air environment in order to obtain the thermal boundary conditions necessary for Computational Fluid Dynamics (CFD) steady-state flow field simulation of the special vehicle cabin. Then according to the research of occupants’ thermal comfort in the special vehicle cabin, the changes in thermal comfort temperature due to thermal adaptation of the occupants are investigated to obtain the thermal comfort assessment model that meets the needs of different seasons and different mission phases.KeywordsThermal comfortAssessment methods