气候变化领域集成服务门户(CCPortal): Air contamination inside an actual operating room due to ultrafine particles: An experimental-numerical thermo-fluid dynamic study

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DOI	10.1016/j.atmosenv.2020.118155
	Air contamination inside an actual operating room due to ultrafine particles: An experimental-numerical thermo-fluid dynamic study
	Massarotti N.; Mauro A.; Mohamed S.; Romano M.R.
发表日期	2021
ISSN	1352-2310
卷号	249
英文摘要	Hospital Operating Rooms (ORs) are working spaces which demand an utmost clean air environment for enhancing both the safety and the comfort conditions of medical staff and patients, in order to reduce the risk of post-operative complications. In this context, an integrated experimental-numerical thermo-fluid dynamic study has been carried out in the present work, to investigate air contamination due to UltraFine Particles (UFPs) inside an actual, but unoccupied, OR, equipped with a laminar air flow system, located near Milan in Northern Italy. The UFPs considered in the present study are geometrically representative of surgical smoke and SARS-CoV, SARS-CoV-2 (COVID-19) virus particles. The flow and thermal fields in the OR have been calculated by using the Realizable k-ε turbulence model. A transient passive scalar species transport equation, based on the drift flux model, has been implemented along with the particle deposition boundary conditions at the OR walls, to analyze the UFPs concentration within the OR. The numerical model has been used, after validation against experimental data, to reproduce the quantities of interest in the OR. Moreover, type A and type B uncertainties have been associated to the experimental measurements. The velocity and temperature fields in the OR, obtained from both the numerical and experimental analysis, are compliant to the technical standards. A good agreement is observed between experimental and numerical results, in terms of velocity, temperature and UFPs concentration. A time of 19 min to completely evacuate UFPs from the OR has been obtained from both experimental and numerical analysis, with a deviation smaller than 2% between the results. © 2020 Elsevier Ltd
语种	英语
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/168977
作者单位	Dipartimento di Ingegneria, Università degli Studi di Napoli “Parthenope”, Centro Direzionale, Isola C4, Napoli, 80143, Italy; Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, Milano, 20090, Italy; Eye Center, Humanitas, Via Gavazzeni 21, Bergamo, 24125, Italy
推荐引用方式 GB/T 7714	Massarotti N.,Mauro A.,Mohamed S.,et al. Air contamination inside an actual operating room due to ultrafine particles: An experimental-numerical thermo-fluid dynamic study[J],2021,249.
APA	Massarotti N.,Mauro A.,Mohamed S.,&Romano M.R..(2021).Air contamination inside an actual operating room due to ultrafine particles: An experimental-numerical thermo-fluid dynamic study.Atmospheric Environment,249.
MLA	Massarotti N.,et al."Air contamination inside an actual operating room due to ultrafine particles: An experimental-numerical thermo-fluid dynamic study".Atmospheric Environment 249(2021).