期刊
ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷 56, 期 12, 页码 7820-7829出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.est.1c08040
关键词
Indoor air quality; deposition; surface chemistry; mass transport; carpet; Computational Fluid Dynamics (CFD)
资金
- Alfred P. Sloan Foundation [G-2020-13912, G-2019-12306]
- Penn State Institute for Computational and Data Science Seed Grant(High-Performance Computing and Numerical Simulations)
Ozone-initiated oxidation reactions on indoor surfaces have a significant impact on the chemical composition of indoor air and human exposure to air toxins. This study investigates the mechanisms of ozone reactions with realistic indoor surfaces using microscope scanning and detailed Computational Fluid Dynamics (CFD) simulation. The results show that the indoor surface topography affects ozone mass transport and uptake, providing insights into indoor chemistry and air quality implications.
Ozone-initiated oxidation reactions on indoor surfaces meaningfully alter the chemical composition of indoor air and human exposure to air toxins. Ozone mass transport within the indoor surface boundary layer plays a key role in ozone-surface reaction kinetics. However, limited information is available on detailed ozone transport dynamics near realistic, irregular indoor surfaces. This paper presents a research framework to study the underlying mechanisms of ozone reactions with realistic indoor surfaces based on microscope scanning of surface material and detailed Computational Fluid Dynamics (CFD simulation. The study results show that indoor surface topography can meaningfully affect ozone mass transport within a surface boundary layer, thereby modulating near-surface ozone concentration gradient and surface uptake. The results also reveal that the effective indoor surface area available for ozone reaction varies with indoor air speed and turbulent air mixing within the boundary layer. The detailed dynamic behaviors of ozone reactions with realistic indoor surfaces provide insights into the implications of pollutant-surface interactions on indoor chemistry and air quality.
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