动态气流作用下的人体可感频率
Human perceptible fluctuation frequency of dynamic airflow
摘要：
搭建了动态气流个体送风装置，产生出0.005～2.5 Hz范围内不同频率的气流，对受试者进行人体热反应投票实验。结果显示，28 ℃下气流的波动可感频率范围为0.2～1.3 Hz，无波动感范围为气流频率小于0.08 Hz和大于2.1 Hz；在0.5 Hz和1 Hz气流作用下，受试者热感觉投票值较低，甚至达到了偏凉的状态，由此可以推断，在平均风速相同的情况下，气流的波动增强了人体的冷感。
Abstract：
Airflows with different fluctuation frequencies from 0.005 Hz to 2.5 Hz are generated by a dynamic air supply terminal. Carries out the voting experiments of human thermal response of the subjects. The results show that the fluctuation-perceptible zone of air frequency is from 0.2 Hz to 1.3 Hz at 28 ℃, and that without fluctuation zone is that lower than 0.08 Hz or higher than 2.1 Hz; the thermal sensation voting value of the subjects is less even reaching to a cooler state in air frequency of 0.5 Hz and 1 Hz, therefore it can be inferred that the air fluctuation has a strengthened cooling effect on human body under the same air velocity.
Keywords:dynamic airflow, thermal comfort, fluctuation, frequency, thermal sensation vote