低温环境下个性化送暖风供暖人体热舒适研究

Research on Human’s Thermal Comfort under Personalized Warm Airflow Heating in Cold Environment

个性化供暖系统对于低温环境下人体改善热舒适具有较大作用,本文针对个性化送暖风供暖的方式开展了人体热舒适实验研究。实验选取较为符合华北村镇地区冬季室内热环境的三种温度水平(3℃、7℃、11℃)和两种湿度水平(30%、50%)为背景温湿度,通过主观问卷的方法调查了受试者供暖过程种的热感觉、热舒适、湿感觉、气流感、热环境满意度,实验结果表明,局部送暖风供暖在短时内能有效地改善人体热舒适,提升人体对热环境的满意度,且人体湿感觉和气流感一直处于较为适中的状态,但长时间暴露在暖风中,人体热环境满意度会下降。

The personalized heating system has a great effect on improving human thermal comfort in cold environment.This article is about an experimental study on the human thermal comfort given warm air.The background environment are under three temperature levels(3℃,7℃,11℃)and two humidity levels(30%,50%)which are in line with the indoor thermal environment in the houses of villages and towns of North China.During the experiment,a subjective questionnaire was carried out to investigate subjects’thermal sensation,thermal comfort,sensation of dampness and draught and satisfaction of the thermal environment.The results show that local warm airflow heating can effectively improve the thermal comfort of the human body and enhance people’s satisfaction of the thermal environment in a short time.Meanwhile,the sensation of dampness and draught kept in a moderate state.However,if exposed to warm airflow for a long time,subjects’satisfaction of the thermal environment will decrease.