Method of Calculating Outdoor PM2.5 Concentration in Fresh Air Systems Based on Population Density Distribution Regions DOI Creative Commons

Daqian Tang,

Xiaoke Guo, Qing Zhao

и другие.

Buildings, Год журнала: 2024, Номер 14(9), С. 3010 - 3010

Опубликована: Сен. 22, 2024

With the gradual increase in population density, migration poses unprecedented challenges to urban environments and their capacity. The fresh air system effectively ensures indoor environments. An important parameter affecting selection of a filtration is calculating particulate matter at concentration less than 2.5 μm (PM2.5). PM2.5 values 31 cities China from 2017 2020 were selected for analysis this study. Based on mathematical induction density zoning, new method that combines zoning proposed, recommended constant K different regions are analyzed. definition refers ratio outdoor design value annual average guarantee rates. filters systems five typical (Harbin, Beijing, Urumqi, Xi’an, Guangzhou) also used as examples. differences under recommendation methods compared Under urbanization scenarios, results indicate seven major was optimal. these conditions, strict normal conditions differ by 0.07 0.04, respectively. This can accurately select densities; however, related factors such policies economy must be updated revised regularly. On whole, it provides reference concentrations distribution differentiation.

Язык: Английский

Method of Calculating Outdoor PM2.5 Concentration in Fresh Air Systems Based on Population Density Distribution Regions DOI Creative Commons

Daqian Tang,

Xiaoke Guo, Qing Zhao

и другие.

Buildings, Год журнала: 2024, Номер 14(9), С. 3010 - 3010

Опубликована: Сен. 22, 2024

With the gradual increase in population density, migration poses unprecedented challenges to urban environments and their capacity. The fresh air system effectively ensures indoor environments. An important parameter affecting selection of a filtration is calculating particulate matter at concentration less than 2.5 μm (PM2.5). PM2.5 values 31 cities China from 2017 2020 were selected for analysis this study. Based on mathematical induction density zoning, new method that combines zoning proposed, recommended constant K different regions are analyzed. definition refers ratio outdoor design value annual average guarantee rates. filters systems five typical (Harbin, Beijing, Urumqi, Xi’an, Guangzhou) also used as examples. differences under recommendation methods compared Under urbanization scenarios, results indicate seven major was optimal. these conditions, strict normal conditions differ by 0.07 0.04, respectively. This can accurately select densities; however, related factors such policies economy must be updated revised regularly. On whole, it provides reference concentrations distribution differentiation.

Язык: Английский

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