Faculty of Environmental and Power Engineering, Cracow University of Technology, 31-155 Cracow, Poland.
Int J Environ Res Public Health. 2022 Feb 1;19(3):1676. doi: 10.3390/ijerph19031676.
The airtightness of buildings is continuing to grow and impact the indoor environment. Its aim is to conserve energy, but this may influence the indoor air quality and increase contaminant accumulation by limiting the amount of fresh air that infiltrates the building. The goal of this study was to quantify how the contaminants from a faulty gas furnace in a household could impact the occupants. The gas furnace was located in an attached garage and leaked carbon monoxide (CO). Multizone and CFD simulations were caried out to determine if an air terminal device (ATD) with a changing geometry could improve the air quality. The goal of the ATD was to maintain a steady air throw in the garage, while the air flow in the ventilation system would change. A steady air throw should help to remove the carbon monoxide generated from the furnace and prevent infiltration into the household. The results show that with the use of the new ATD, it was possible to maintain a steady air throw and the infiltration of CO was lowered.
建筑物的气密性不断增强，对室内环境产生影响。其目的是节约能源，但这可能会通过限制进入建筑物的新鲜空气量来影响室内空气质量并增加污染物的积累。本研究的目的是量化家庭中故障燃气炉产生的污染物如何影响居住者。燃气炉位于附设的车库内并泄漏一氧化碳（CO）。进行了多区域和 CFD 模拟，以确定具有可变几何形状的空气终端设备（ATD）是否可以改善空气质量。ATD 的目的是保持车库内的稳定空气喷射，同时通风系统中的空气流量会发生变化。稳定的空气喷射有助于去除炉子产生的一氧化碳并防止其渗透到家庭中。结果表明，使用新的 ATD，可以保持稳定的空气喷射并降低 CO 的渗透。
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