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首页> 外文期刊>Building and Environment >Comparing mixing and displacement ventilation in tutorial rooms: Students' thermal comfort, sick building syndromes, and short-term performance
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Comparing mixing and displacement ventilation in tutorial rooms: Students' thermal comfort, sick building syndromes, and short-term performance

机译：比较辅导室的混合通风和置换通风：学生的热舒适度，病态建筑综合症和短期表现

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摘要

While mixing ventilation (MV) and displacement ventilation (DV) are widely used to regulate the indoor environment, very few studies compared occupants' responses under these two systems in the field. In this study, a field experiment was conducted in two identical tutorial rooms to compare human subjects' thermal comfort, sick building syndromes (SBS), and short-term performance under MV and passive displacement ventilation (PDV). Experimental results showed that MV could lead to significantly larger overall draft sensation than PDV due to high air velocity from the overhead diffusers. PDV on the other hand, led to significantly higher draft and colder sensation in the lower body level, while draft distribution was perceived relatively homogenous in the vertical direction in the MV room. Seat arrangement could lead to inhomogeneous sensations in the horizontal direction in both the MV and PDV rooms. Higher CO2 concentration was the main factor causing SBS related to head, while both higher CO2 concentration and lower relative humidity (RH) contributed to SBS related to eyes. As a consequence, SBS resulted from high CO2 concentration and low RH could lead to decrease in short-term performance. In addition to the experiment, the results of the real-life occupants' feedback also resembled the experimental findings. (C) 2016 Elsevier Ltd. All rights reserved.
机译：虽然混合通风（MV）和置换通风（DV）被广泛用于调节室内环境，但很少有研究比较居住者在这两种系统下的反应。在这项研究中，在两个相同的辅导室中进行了现场实验，以比较人类受试者的热舒适性，病态建筑综合症（SBS）以及在MV和被动置换通气（PDV）下的短期表现。实验结果表明，由于高架扩散器的高风速，MV可能比PDV产生更大的总体吃水感。另一方面，PDV导致下半身显着更高的吃水和较冷的感觉，而在MV室中，吃水分布在垂直方向上被认为是相对均匀的。座椅布置可能会在MV和PDV室中导致水平方向上的不均匀感觉。较高的CO2浓度是引起与头部有关的SBS的主要因素，而较高的CO2浓度和较低的相对湿度（RH）均与眼睛有关。结果，高CO2浓度和低RH导致的SBS可能导致短期性能下降。除了实验，真实居住者的反馈结果也与实验结果相似。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Building and Environment》 |2016年第6期|128-137|共10页
  • 作者

    Shan Xin; Zhou Jin; Chang Victor W. -C.; Yang En-Hua;

  • 作者单位

    Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore|Berkeley Educ Alliance Res Singapore, Singapore 138602, Singapore;

    Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore|Berkeley Educ Alliance Res Singapore, Singapore 138602, Singapore;

    Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore|Berkeley Educ Alliance Res Singapore, Singapore 138602, Singapore;

    Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore|Berkeley Educ Alliance Res Singapore, Singapore 138602, Singapore;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Mixing ventilation; Displacement ventilation; Tutorial room; Thermal comfort; Sick building syndrome; Short-term performance;

    机译：混合通风;置换通风;辅导室;热舒适度;病态建筑综合症;短期表现;

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