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New design for solar chimney with integrated windcatcher for space cooling and ventilation

机译：用于空间冷却和通风的集成卷绕机的太阳能烟囱新设计

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摘要

This research highlights the thermal and ventilation performance of a newly designed solar chimney in conjunction with a windcatcher and water spray system for a two-story office building in a warm and arid climate. The north facade of the building is a windcatcher, which, coupled with a solar chimney on the roof provide ventilation for both floors via a floor void with the smallest footprint. An experimental study comprising a reduced scale model and computational fluid dynamics (CFD) analysis were carried out to evaluate the cooling and ventilation potential of a solar chimney with and without the windcatcher functioning. The results show that, even on a hot and sunny day, the solar chimney coupled with a windcatcher and water spray system can provide reasonable thermal and airflow conditions for both floors without the need of wind force. The arrangement is able to reduce an average temperature of 5.2 degrees C and generate about 9 ACH in the peak hours of a day for the occupied space, as well as save 75% of the total cooling and 90% of the energy required for ventilation during the working time in peak summer.
机译：该研究突出了新设计的太阳能烟囱的热通风性能，与卷绕机和水喷雾系统一起进行温暖和干旱的气候。建筑物的北部门面是卷绕器，其与屋顶上的太阳烟囱相结合，可通过带有最小占地面积的地板空隙为两个楼层提供通风。进行了一种实验研究，包括减少规模模型和计算流体动力学（CFD）分析，以评估太阳能烟囱的冷却和通风电位，而无需卷绕器功能。结果表明，即使在炎热和阳光灿烂的日子，与卷绕器和喷水系统相结合的太阳能烟囱也可以为两个楼层提供合理的热和气流条件，而无需风力。该布置能够降低5.2℃的平均温度，并在占用空间的一天的高峰小时内产生约9个ACH，以及节省75％的总冷却和通风期间的90％的能量。高峰夏的工作时间。

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  • 来源
    《Building and Environment》 |2020年第8期|106785.1-106785.11|共11页
  • 作者

    Moosavi Leila; Zandi Majid; Bidi Mokhtar; Behroozizade Ehsan; Kazemi Iman;

  • 作者单位

    Yazd Univ Sch Arts & Architecture Dept Architecture Yazd Iran|Shahid Beheshti Univ SBU Fac Mech & Energy Engn Renewable Energies Engn Dept Tehran Iran;

    Shahid Beheshti Univ SBU Fac Mech & Energy Engn Renewable Energies Engn Dept Tehran Iran;

    Shahid Beheshti Univ SBU Fac Mech & Energy Engn Renewable Energies Engn Dept Tehran Iran;

    Shahid Beheshti Univ SBU Fac Mech & Energy Engn Renewable Energies Engn Dept Tehran Iran;

    Shahid Beheshti Univ SBU Fac Mech & Energy Engn Renewable Energies Engn Dept Tehran Iran;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Solar chimney; Natural ventilation; Model experiments; CFD; Energy efficiency; Passive cooling;

    机译：太阳能烟囱;自然通风;模型实验;CFD;能效;被动冷却;

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