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首页> 外文期刊>Building and Environment >Impact of various ventilation modes on IAQ and energy consumption in Chinese dwellings: First long-term monitoring study in Tianjin, China
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Impact of various ventilation modes on IAQ and energy consumption in Chinese dwellings: First long-term monitoring study in Tianjin, China

机译：各种通风方式对中国住宅室内空气质量和能耗的影响：中国天津的首次长期监测研究

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摘要

People typically spend many hours a day inside their homes. Outdoor PM2.5, indoor decor, and the activities of residents worsen indoor air quality. Natural ventilation, natural ventilation with a portable air cleaner (PAC), and mechanical ventilation are some of the main ventilation modes. However, limited data are available on the actual performance of different ventilation modes. We conducted a one-year on-site program of measurement in six apartments in Tianjin, China. The results showed that indoor air quality was affected by both outdoor particle concentration and indoor activities (walking, cooking, etc.). Natural ventilation alone cannot guarantee indoor air quality. A mechanical ventilation system could reduce the duration of high indoor particulate pollution periods to some extent; however, whole year monitoring revealed that it was not effective in increasing healthy time ratios. Reduction in CO2 concentrations above the standard levels through mechanical ventilation is 22.3% more than that through natural ventilation dwellings. Natural ventilation with a portable air cleaner can remove mass particulate pollution rapidly and maintain good indoor air quality with long-time operation. This study is expected to contribute towards the improvement of indoor air quality and the health of residents.
机译：人们通常每天在家中花费许多时间。室外PM2.5，室内装饰以及居民的活动使室内空气质量恶化。自然通风，便携式空气净化器（PAC）的自然通风和机械通风是其中的一些主要通风模式。但是，有关不同通风模式的实际性能的可用数据有限。我们在中国天津的六套公寓中进行了为期一年的现场测量。结果表明，室内空气质量受室外颗粒物浓度和室内活动（步行，烹饪等）的影响。仅靠自然通风不能保证室内空气质量。机械通风系统可以在一定程度上减少高浓度室内颗粒物污染持续时间。但是，全年监测表明，它不能有效地增加健康时间比率。通过机械通风将二氧化碳浓度降低到标准水平以上比通过自然通风住宅减少22.3％。便携式空气滤清器的自然通风可快速去除大量颗粒物污染，并通过长时间运行保持室内空气质量良好。这项研究有望为改善室内空气质量和居民健康做出贡献。

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