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Influence of relative air humidity and movement on human thermal perception in classrooms in a hot and humid climate

机译：炎热潮湿的环境中相对空气湿度和运动对教室人类热感的影响

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摘要

In equatorial, hot-humid tropical climates, users of naturally ventilated environments are commonly susceptible to heat discomfort caused by high air temperatures and thus require more air movement to improve thermal comfort. To evaluate the influence of relative humidity and air speed on the occupant's thermal perception, field studies were conducted in naturally ventilated and fan-assisted classrooms in Sao Luis City, North-Eastern Brazil. Indoor environmental variables were measured alongside questionnaires, focusing on thermal environment and air movement evaluation. The results indicated that relative humidity had a significant negative impact on thermal perception when the operative temperature was above 30 degrees C, while airspeed played a key role in reducing thermal discomfort. Despite the contribution of internal air movement, it was concluded that, when the indoor operative temperature exceeded 31 degrees C, mechanical cooling is required to achieve thermal comfort. The results also indicated the great acceptability of indoor conditions, as well as the influence of environmental variables on student's thermal perception in naturally ventilated spaces.
机译：在赤道，湿热的热带气候中，自然通风环境的使用者通常容易受到高气温引起的热不适感，因此需要更多的空气流动以改善热舒适性。为了评估相对湿度和空气速度对乘员的热感知的影响，在巴西东北部圣路易斯市的自然通风和风扇辅助教室中进行了现场研究。室内环境变量与问卷一起进行测量，重点关注热环境和空气流动评估。结果表明，当操作温度高于30摄氏度时，相对湿度对热感知有明显的负面影响，而空速在减少热不适方面起着关键作用。尽管有内部空气流动的影响，但得出的结论是，当室内工作温度超过31摄氏度时，仍需要机械冷却来达到热舒适性。结果还表明室内条件的可接受性以及环境变量对自然通风空间中学生的热感的影响。

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  • 来源
    《Building and Environment》 |2018年第12期|98-106|共9页
  • 作者

    Buonocore Carolina; De Vecchi Renata; Scalco Veridiana; Lamberts Roberto;

  • 作者单位

    Univ Fed Santa Catarina, LabEEE Bldg Energy Efficiency Lab, Dept Architecture & Urban Planning, PosARQ Postgrad Program Architecture & Urban Plan, BR-88040970 Florianopolis, SC, Brazil;

    Univ Fed Santa Catarina, LabEEE Bldg Energy Efficiency Lab, Dept Civil Engn, PPGEC Postgrad Program Civil Engn, BR-88040970 Florianopolis, SC, Brazil;

    Univ Fed Santa Catarina, Dept Architecture & Urban Planning, LabCon Environm Comfort Lab, PosARQ Postgrad Program Architecture & Urban Plan, BR-88040900 Florianopolis, SC, Brazil;

    Univ Fed Santa Catarina, Dept Civil Engn, LabEEE Bldg Energy Efficiency Lab, BR-88040970 Florianopolis, SC, Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Hot-humid climate; Relative humidity; Airspeed; Natural ventilation; Classrooms;

    机译：湿热气候;相对湿度;空速;自然通风;教室;

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