夏季温度漂移环境下的人体热舒适研究

Study of human thermal comfort in summer temperature drift environment

长期处于稳态热环境会削弱人体的热适应能力,影响人体热舒适,并且空调系统的长期运行也会造成能源过度消耗。研究显示,允许室内环境温度适当地变化可以改善上述问题。通过控制空调的间歇启停,结合主观热评价、额头温度、耳温以及平均皮肤温度的变化,探究了短暂温度漂移下的人体热反应,并且分析了额头温度与热舒适投票之间的相关关系。结论如下:存在温度漂移的夏季空调环境,可以提高人体对偏热环境的接受度;适当范围内的温度漂移可以提高人体热舒适,为室内空调系统的动态调节提供了新的研究思路;温度漂移热环境中,人体额头温度与热舒适显著相关,其可以作为表征动态环境热舒适的重要指标之一。

Long-term exposure to a steady-state thermal environment can weaken humans’thermal adaptation capacity and affect human’s thermal comfort.In addition,prolonged operation of air conditioning systems can also result in excessive energy consumption.Studies have shown that allowing appropriate variations in indoor ambient temperature can solve the above problems.Combining the changes of subjective thermal evaluation,forehead temperature,ear temperature and mean skin temperature,this study explored the human thermal response under transient temperature drift by controlling the intermittent start-stop of the air conditioner.And the correlation between forehead temperature and thermal comfort voting was analyzed.The results showed that a summer air-conditioned environment with temperature drift can improve humans’acceptance of a partially hot environment.Temperature drift in the appropriate range can improve humans’thermal comfort,which provides a new idea for the dynamic regulation of indoor air-conditioning systems.In temperature drift thermal environments,humans’forehead temperature is significantly correlated with thermal comfort.The forehead temperature can be used as one of the important indicators to characterize the dynamic environmental thermal comfort.