湿热环境下空气流动对人体热舒适的影响(1):不可控气流
Air movement and thermal comfort in hot-humid environments (1): Without occupant control
摘要:
实验研究了温度26,28,30 ℃,相对湿度60%,80%工况下,16名中国受试者对吊扇不可控(即固定)气流的热反应。结果表明:吊扇气流可显著提高热湿环境下的人体舒适度,受试者可接受的温湿度上限可达30 ℃,80%,偏好风速随温湿度上升而上升,最大至1.6 m/s,超出了ASHRAE 55标准给出的不可控气流适用范围。
Abstract:
Experiments on the thermal responses of 16 subjects from China exposed to the environment with fixed air movement from ceiling fans at three levels of temperature (26, 28, 30 ℃) and two levels of relative humidity(RH) (60% and 80%) by questionnaire. Results show that the air movement from fixed ceiling fan can markedly improve occupant comfort in hot-humid environment, and the thermal comfort can be maintained up to 30 ℃ and 80%, and the preferred air speed increases while air temperature and humid improves. The maximum preferred air speed is 1.6 m/s,much higher than the upper limit by ASHRAE Standard 55.
Keywords:hot-humid environment, air movement without occupant control, ceiling fan, thermal comfort, perceived air quality