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Optimal design of building openings to reduce the risk of indoor respiratory epidemic infections

Building Simulation 2022年第5期15卷 871-884页

作者： Yixin Dong Li Zhu Sui Li Martin Wollensak School of Architecture Tianjin UniversityTianjin300072China School of Architecture and Design Hochschule WismarWismar23966Germany APEC Sustainable Energy Center Asia-Pacific Economic Cooperation(APEC)National Energy Administration(NEA)of ChinaTianjin300072China Ecological Planning and Green Building Research Institute Shenyang Jianzhu UniversityShenyang110168China

The design of indoor airflow environments can significantly reduce the risk of respiratory epidemic infections *** studies have successfully developed theoretical models for calculating the effect of airflow fields on infection ***,up until now,studies have primarily focused on simulating and calculating the distribution of viral infection rates in current building *** to the lack of a direct influence model for the design parameters and infection rate calculation,the present studies lack a quantitative analysis of the design *** paper investigates the building openings design approach in a medium-sized kindergarten in Germany,intending to explore passive-based design solutions to improve the building's ability to prevent the virus'*** calculate the infection rate distribution in space by CFD combined with the Wells-Riley *** then,use the Grasshopper platform to build an optimization model with the design parameters of building openings and infection rate values to discuss the relationship between geometric parameters and infection rate *** results show that the building openings'design parameters in transition spaces significantly affect the indoor infection rate under the condition that the input wind speed at the building openings is *** can see that optimizing building openings significantly reduces the average infection rate in *** infection rate in the area with the largest decrease can be reduced by 18.41%.The distribution of infection rate in space is much more uniform,and the excess area is significantly *** study has implications for future research and practice in designing public buildings under the influence of long-standing and cyclical outbreaks of epidemics.

关键词： virus infection rate building openings parameter optimization transition spaces COVID-19 parametric simulation

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