热湿环境工位辐射空调加桌面风扇热舒适实验研究

为了研究热湿环境中工位辐射空调加桌面风扇供冷方式下的人体热舒适情况,采用环境测量和主观问卷相结合的方式，在环境背景温度分别为26 ℃，28 ℃和30 ℃(相对湿度80%)的人工环境实验室内测试了24名受试者的整体热感觉、热舒适、热可接受度和热期望.结果表明，热湿环境中，工位辐射空调加桌面风扇供冷方式能显著改善处于热湿环境中的受试者的热舒适情况，但在26 ℃时，其效果并不明显.虽然背景环境参数超出了舒适范围，在工位辐射空调加桌面风扇供冷方式下，受试者的热感觉随着时间的增加逐渐趋于中性，且室内环境温度达到30 ℃(相对湿度80%)时，仍有超过80%受试者表示可接受其所处环境.因此，工位辐射空调加桌面风扇的供冷方式有效地扩展了夏季室内舒适温度范围.工位辐射空调加桌面风扇供冷方式的研究为非中性环境中维持人体热舒适和降低建筑能耗提供了新的途径.
This study focused on thermal comfort of subjects with radiant cooling workstation and desktop fan in hot-humid environments. Twenty-four human subjects participated in the experiments and reported their thermal sensation，thermal comfort，thermal acceptability and thermal preference in the hot-humid environments at 26，28 and 30 ℃ in an environmental chamber. The obtained results show that radiant cooling workstation and desktop fan significantly improved the thermal comfort of subjects in the hot-humid environments，but the effect was not obvious at 26 ℃. Subjects can still well maintain the neutral thermal sensation condition although indoor environment was as high as 30 ℃ and the relative humidity was 80%. Therefore，radiant cooling workstation and desktop fan can extend comfortable temperature range in summer. This study provides a new way for maintaining comfort in non-neutral environment and saving energy in buildings.