Experimental investigation on human thermal comfort in passenger compartment under actual air conditioning usage habits
2022-01-0217
03/29/2022
- Event
- Content
- With the popularization of automobiles, people’s driving time increases gradually. However, the accompanying problem is that the interior space of the vehicle passenger compartment is narrow and relatively closed. If drivers and passengers are permanently in the uncomfortable passenger compartment, they will feel tired, agitated, inattention, etc., which is prone to traffic accidents. This makes people gradually improve the requirements of driving comfort. And thermal comfort is an important aspect of vehicle comfort, which is closely related to the energy consumption of air conditioning. The thermal environment in the vehicle passenger compartment is a special non-uniform thermal environment. However, due to the complexity of the thermal environment inside the automobile, the basic research on human thermal comfort in the non-uniform thermal environment is carried out in the building environment. The non-uniform thermal environment in the building is mainly caused by the non-uniform air supply and the influence of solar radiation. This study measured the thermal environment parameters and skin surface temperature of the human body in the vehicle passenger compartment and conducted a subjective evaluation of human thermal sensation and thermal comfort through real vehicle experiments under typical parking conditions in summer and winter. The relationship between skin temperature and human thermal sensation and comfort was analyzed. And the differences between local thermal comfort and overall thermal comfort indexes were compared. The experimental results showed that the head and trunk are the most relevant parts of all body parts with the overall thermal sensation and thermal comfort. And the values of regression slopes of thermal sensation of other body parts were 0.4 to 0.6, while the values of regression slopes of thermal comfort of other body parts were -0.4 to -0.7.
- Citation
- Xu, X., and zhao, l., "Experimental investigation on human thermal comfort in passenger compartment under actual air conditioning usage habits," SAE Technical Paper 2022-01-0217, 2022, .