CFD Simulations of Small Particle Behavior with Blower-Driven Airflows in Single-Family Residential Buildings

IF 4.3 2区 环境科学与生态学 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Indoor air Pub Date : 2024-02-22 DOI:10.1155/2024/6685891
Yigang Sun, Paul Francisco, Zachary Merrin, Kiel Gilleade
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引用次数: 0

Abstract

Inhaling airborne droplets exhaled from an infected person is the principal mode of COVID-19 transmission. When residential energy efficiency workers conduct blower door tests in occupied residences with a COVID-19-infected occupant potentially present, there is a concern that it could put the workers at risk of infection with massive flows of air being generated by the tests. To minimize this risk, computational fluid dynamics (CFD) simulations were conducted for four prototype houses to develop guidelines for workers to follow during their service visits. The CFD simulations visualized the movements and evaluated the residence time of small particles released at certain locations under a series of scenarios representing situations that are likely to be encountered during in-home energy efficiency services. Guidelines were derived from the simulated tracks of droplets to help to increase the safety of the worker(s).

单户住宅楼鼓风机驱动气流小颗粒行为的 CFD 模拟
吸入感染者呼出的空气飞沫是 COVID-19 的主要传播方式。当住宅节能工作人员在可能存在 COVID-19 感染者的有人居住的住宅中进行鼓风机门测试时,人们担心测试产生的大量气流会使工作人员面临感染风险。为了最大限度地降低这种风险,我们对四栋样板房进行了计算流体动力学(CFD)模拟,以制定工人在上门服务时应遵循的指导原则。计算流体动力学模拟可视化了小颗粒的运动情况,并评估了在一系列情景下,小颗粒在特定位置释放的停留时间,这些情景代表了上门节能服务过程中可能遇到的情况。根据模拟的液滴轨迹得出了指导原则,以帮助提高工作人员的安全性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Indoor air
Indoor air 环境科学-工程:环境
CiteScore
10.80
自引率
10.30%
发文量
175
审稿时长
3 months
期刊介绍: The quality of the environment within buildings is a topic of major importance for public health. Indoor Air provides a location for reporting original research results in the broad area defined by the indoor environment of non-industrial buildings. An international journal with multidisciplinary content, Indoor Air publishes papers reflecting the broad categories of interest in this field: health effects; thermal comfort; monitoring and modelling; source characterization; ventilation and other environmental control techniques. The research results present the basic information to allow designers, building owners, and operators to provide a healthy and comfortable environment for building occupants, as well as giving medical practitioners information on how to deal with illnesses related to the indoor environment.
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