基于过滤浓度日数的新风PM2.5过滤负荷特性研究

发布时间：2018-01-09 22:17

本文关键词：基于过滤浓度日数的新风PM2.5过滤负荷特性研究　出处：《同济大学学报(自然科学版)》2017年09期 　论文类型：期刊论文

【摘要】：我国建筑环境PM2.5过滤或净化计算方法研究已引起广泛关注.针对我国不同区域新风PM2.5过滤负荷差异及变迁,引入不保证天数法,计算确定了各地区PM2.5新风设计负荷;类比空调度日数和采暖度日数提出过滤浓度日数FCD的概念;根据各地PM2.5动态浓度数据及其室内标准浓度,计算得到了历年全国省会及直辖市的FCD;利用统计学方法获得了各地区FCD和新风设计负荷的关系.研究结果表明,FCD指标清晰地反映了全国各地新风PM2.5设计计算负荷水平;FCD值与新风设计负荷表现为高度线性相关,显著性水平P0.01;可用FCD来直接指示建筑PM2.5的新风设计负荷水平,可为将来新风PM2.5过滤系统设计、对比提供简单直观的依据.
[Abstract]:The study of PM2.5 filtration or purification calculation method for building environment in China has aroused widespread concern. In view of the difference and changes of PM2.5 filtration load in different regions of China, the method of unguaranteed days is introduced. The design load of PM2.5 fresh air in each area is determined by calculation. The concept of filter concentration days (FCD) is put forward by analogy with air conditioning degree days and heating degree days. Based on the dynamic concentration data of PM2.5 and its indoor standard concentration, the FCDs of the provincial capitals and municipalities of the whole country were calculated. The relationship between FCD and design load of fresh air is obtained by means of statistical method. The results show that the index of FCD clearly reflects the load level of design and calculation of PM2.5 in different parts of the country. There was a high linear correlation between the FCD value and the design load of fresh air (P 0.01). FCD can be used to directly indicate the design load level of building PM2.5, which can provide a simple and intuitive basis for the design of PM2.5 filter system of fresh air in the future.
【作者单位】：同济大学机械与能源工程学院;
【基金】：中央高校基本科研业务经费专项资金(1000219177)
【分类号】：TU834.8;X513
【正文快照】： 近几年,我国多数大中城市出现严重雾霾天气,造成这种现状的主要污染物是大气颗粒物PM2.5.2009年,中国的环保部门对灰霾天进行了试点监测,结果显示2009-01-01—2009-12-31,各试点城市发生灰霾的天数在51—211d[1].2013年初,我国中东部地区出现长时间、大范围、重污染的雾霾天气

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