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Human comfort and perceived air quality in warm and humid environments with ceiling fans

机译：吊扇在温暖潮湿的环境中提供人的舒适感和空气质量

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摘要

The effects of air movement from ceiling fans on subjective thermal comfort and perceived air quality (PAQ) were examined for warm-humid environments. In a climate chamber controlled at three temperatures (26 degrees C, 28 degrees C and 30 degrees C) and two relative humidity (RH 60% and 80%), sixteen subjects (8 males and 8 females) dressed in summer clothing (0.5 clo) were exposed to 7 levels of air speed ranging from 0.05 m/s to 1.8 m/s. The subjects were asked to rate their thermal sensation, comfort, PAQ, air movement acceptability, humidity sensation, eye-dryness during the 2-h and 15 min long tests. Air movement significantly improves the subjects' thermal comfort, PAQ and humidity sensation without causing dry-eye discomfort. Without air movement, the 80% acceptable limit established by the ASHRAE standard 55 was reached at 26 degrees C/60%RH, 26 degrees C/80%RH, and 28 degrees C/60%RH. With air movement, more than 80% of the subjects perceived the environments acceptable at 28 degrees C/80%RH, 30 degrees C/60%RH, and 30 degrees C/80%RH. The preferred air speeds for ceiling fans were in many cases higher than the limit specified in ASHRAE Standard, which is 0.8 m/s when users have no control over the fan. (C) 2015 Elsevier Ltd. All rights reserved.
机译：在温暖潮湿的环境下，检查了吊扇空气流动对主观热舒适度和感知空气质量（PAQ）的影响。在一个控制三个温度（26摄氏度，28摄氏度和30摄氏度）和两个相对湿度（相对湿度60％和80％）的气候箱中，十六名受试者（8名男性和8名女性）穿着夏装（0.5克）暴露于7种级别的空气速度，范围从0.05 m / s至1.8 m / s。在2小时和15分钟的长时间测试中，要求受试者对他们的热感觉，舒适度，PAQ，空气运动可接受性，湿度感觉，眼干进行评分。空气流动可显着改善受试者的热舒适性，PAQ和湿度感觉，而不会引起干眼不适。在没有空气流动的情况下，ASHRAE标准55建立的80％可接受极限在26摄氏度/ 60％RH，26摄氏度/ 80％RH和28摄氏度/ 60％RH时达到。随着空气的流动，超过80％的受试者在28摄氏度/ 80％RH，30摄氏度/ 60％RH和30摄氏度/ 80％RH的环境中感到可以接受。在许多情况下，吊扇的首选风速高于ASHRAE标准中规定的极限，即用户无法控制风扇时的极限风速为0.8 m / s。 （C）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Building and Environment》 |2015年第8期|178-185|共8页
  • 作者

    Zhai Yongchao; Zhang Yufeng; Zhang Hui; Pasut Wilmer; Arens Edward; Meng Qinglin;

  • 作者单位

    S China Univ Technol, Dept Architecture, State Key Lab Subtrop Bldg Sci, Guangzhou 510640, Guangdong, Peoples R China|Univ Calif Berkeley, Ctr Built Environm, Berkeley, CA 94720 USA;

    S China Univ Technol, Dept Architecture, State Key Lab Subtrop Bldg Sci, Guangzhou 510640, Guangdong, Peoples R China|Univ Calif Berkeley, Ctr Built Environm, Berkeley, CA 94720 USA;

    Univ Calif Berkeley, Ctr Built Environm, Berkeley, CA 94720 USA;

    Univ Calif Berkeley, Ctr Built Environm, Berkeley, CA 94720 USA|Univ Padua, Dipartimento Fis Tecn, I-35131 Padua, Italy;

    Univ Calif Berkeley, Ctr Built Environm, Berkeley, CA 94720 USA;

    S China Univ Technol, Dept Architecture, State Key Lab Subtrop Bldg Sci, Guangzhou 510640, Guangdong, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Warm-humid environment; Air movement; Ceiling fan; Thermal comfort; Perceived air quality;

    机译：温暖潮湿的环境;空气流动;吊扇;热舒适;可感知的空气质量;

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