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Experimental study of the thermal performance of a large institutional building with mixed-mode cooling and hybrid ventilation

机译：混合模式冷却与混合通风的大型公共建筑热性能的实验研究

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摘要

The paper explores mixed-mode cooling strategies in buildings with hybrid ventilation and high levels of exposed thermal mass and presents data collected over an extensive period of time using a full-scale experimental set-up in an occupied institutional building with motorized facade openings integrated with an atrium. Night cooling strategies for thermal mass pre-cooling, with variable low temperature setpoint for control of airflow through operation of motorized grilles or a possible variable speed fan, are evaluated. Results for the thermal conditions in the highly-glazed atrium zone and the wind and buoyancy-driven airflow rates show that free cooling covers a significant portion of the building's cooling requirements while maintaining a comfortable indoor environment The heat removal from concrete floor slabs is 2-5 times higher with the inlet air stream at an average temperature of 12 ℃, compared to that with an air stream at 15 ℃ or 18 ℃ respectively. These findings provide insights for space conditioning using hybrid ventilation that can support the development of model-predictive control strategies.
机译：本文探讨了混合通风和高水平暴露热质量的建筑中的混合模式冷却策略，并提出了在长时间使用全比例实验设置收集的数据的数据，该实验设置是在有人居住的机构建筑中进行的，该建筑具有电动幕墙开口并与中庭。评估了用于热质量预冷的夜间冷却策略，该策略具有可变的低温设定值，可通过操作电动格栅或可能的变速风扇来控制气流。高玻璃中庭区域的热状况以及风和浮力驱动的气流速率的结果表明，免费冷却可满足建筑物制冷需求的很大一部分，同时保持舒适的室内环境。混凝土楼板的散热量为2-平均温度为12℃的进风量分别是15℃或18℃进风量的5倍。这些发现为使用混合通风的空间调节提供了见识，该混合通风可支持模型预测控制策略的发展。

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  • 来源
    《Building and Environment》 |2012年第11期|p.313-326|共14页
  • 作者

    P. Karava; A.K. Athienitis; T. Stathopoulos; E. Mouriki;

  • 作者单位

    School of Civil Engineering and Division of Construction Engineering and Management, Purdue University, 550 Stadium Mall Dr., CIVL 1227, West Lafayette, IN 47907-2051, USA;

    Department of Building, Civil and Environmental Engineering, Concordia University, 1455 de Maisonneuve Blvd. W., Montreal, H3C 1M8 QC, Canada;

    Department of Building, Civil and Environmental Engineering, Concordia University, 1455 de Maisonneuve Blvd. W., Montreal, H3C 1M8 QC, Canada;

    Department of Building, Civil and Environmental Engineering, Concordia University, 1455 de Maisonneuve Blvd. W., Montreal, H3C 1M8 QC, Canada;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    atrium; building thermal mass; hybrid ventilation; mixed-mode cooling;

    机译：心房建筑热质量;混合通风混合模式冷却;

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