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Evaluation of different air distribution systems for sleeping spaces in transport vehicles

机译:评估运输车辆睡眠空间的不同空气分配系统

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摘要

Air distribution in the sleeping space of a transport vehicle is important for sleep quality, especially during a long journey. In order to design a thermally comfortable sleeping space with fresher air, this investigation used a verified computational fluid dynamics (CFD) method to obtain the distributions of air velocity, air temperature, and CO2 concentration in the sleeping space with displacement, personalized, and mixing ventilation systems. This study used the facial-area speed ratio, mean age of air, and draft risk obtained by CFD to evaluate the air distribution effectiveness. The results showed that the performance of the personalized ventilation system was better than that of the displacement and mixing ventilation systems because it provided superior thermal comfort and higher air quality. The distributions of air velocity, air temperature, and contaminant concentration computed by CFD were validated with corresponding experimental data obtained in a full-scale test rig. (C) 2015 Elsevier Ltd. All rights reserved.
机译:运输车辆的睡眠空间中的空气分配对于睡眠质量至关重要,特别是在长途旅行中。为了设计具有新鲜空气的热舒适睡眠空间,本研究使用经过验证的计算流体力学(CFD)方法来获得睡眠空间中的空气速度,空气温度和CO2浓度的分布,并进行位移,个性化和混合通风系统。这项研究使用面部速度比,平均空气年龄和通过CFD获得的吃水风险来评估空气分配的有效性。结果表明,个性化通风系统的性能优于置换通风和混合通风系统,因为它提供了卓越的热舒适性和更高的空气质量。通过CFD计算的风速,空气温度和污染物浓度的分布已通过在大型试验台上获得的相应实验数据进行了验证。 (C)2015 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Building and Environment》 |2015年第2期|665-675|共11页
  • 作者单位

    Tianjin Univ, Sch Environm Sci & Engn, Tianjin Key Lab Indoor Air Environm Qual Control, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Environm Sci & Engn, Tianjin Key Lab Indoor Air Environm Qual Control, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Environm Sci & Engn, Tianjin Key Lab Indoor Air Environm Qual Control, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Environm Sci & Engn, Tianjin Key Lab Indoor Air Environm Qual Control, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Environm Sci & Engn, Tianjin Key Lab Indoor Air Environm Qual Control, Tianjin 300072, Peoples R China|Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sleeping space; CFD; Thermal comfort; Air quality; Personalized ventilation; Displacement ventilation; Mixing ventilation;

    机译:睡眠空间;CFD;热舒适;空气质量;个性化通风;置换通风;混合通风;

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