微尘的流入路径和加热负载的变化基于两个韩国学校的空气密度的现场测量
Doo Yong Park1, Seung Hyeon Han1, Duk Joon Park1
1Building Energy Research Center, KCL(Korea Conformity Laboratories), Seoul, 06711, South Korea.
Heliyon
|February 23, 2024
概括
提高教室的气密性可以显著减少微尘透和加热能量负载. 密封措施提高了气密性,从而大幅减少了学校的微尘和能源消耗.
科学领域:
- 环境科学 环境科学
- 建筑科学 建筑科学
- 能源效率 能源效率 能源效率
背景情况:
- 微尘 (颗粒物) 构成健康风险,特别是在学校等室内环境中.
- 建筑的密闭性是影响室内空气质量和能源消耗的关键因素.
- 之前的研究还没有全面地将课堂气密度的改善与微尘减少和节能负载的节省联系起来.
研究的目的:
- 量化课堂空气密度改善对微尘减少的影响.
- 评估由加强建筑密封造成的相关能源负载减少.
- 为了确定外部微尘透到学校教室的关键途径.
主要方法:
- 在中学和高中课堂上测量空气密度和室内/室外细尘度.
- 实施密封改进,以提高教室的气密性.
- 分析了基于不同级别的空气密度的户外空气流入路径.
主要成果:
- 在密封后,教室的气密度提高了32.26% (A学校) 和38.58% (B学校).
- 识别走廊窗户/门和外部窗户作为主要的细尘流入路径.
- 通过提高气密度,实现了27% (A学校) 和32% (B学校) 的加热负载减少率.
结论:
- 提高教室的气密性有效地减少了微尘的入侵和加热能量负载.
- 结果支持明智选择设备 (例如热) 和潜在的成本节约.
- 空气密度的改善为室内环境质量和建筑物的能源性能提供了双重好处.
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