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المؤلفKatramiz, Elvire
المؤلفGhaddar, Nesreen
المؤلفGhali, Kamel
المؤلفAl-Assaad, Douaa
المؤلفGhani, Saud
تاريخ الإتاحة2024-05-02T11:19:28Z
تاريخ النشر2021
اسم المنشورBuilding and Environment
المصدرScopus
المعرّفhttp://dx.doi.org/10.1016/j.buildenv.2021.107719
الرقم المعياري الدولي للكتاب3601323
معرّف المصادر الموحدhttp://hdl.handle.net/10576/54577
الملخصWhile personalized ventilation (PV) has been integrated to enhance inhaled air quality, some studies showed that it can contribute to contaminants' transport indoors. This work investigates the effect of the individual preferences of PV users on potential cross-contamination in an office. Two occupants were using PV, sitting either face to face or back to face (i.e. in tandem). One of the occupants was infecting the office space through two respiratory activities: coughing and breathing. The PV flowrate control ranged between 0 and 13 l/s, ensuring thermal comfort. A 3-D computational fluid dynamics model was developed and experimentally validated in a climatic chamber equipped with one thermal manikin representing the infected person and a heated dummy representing the healthy person. The cross-contamination was assessed using the inhaled intake fraction (iF) index, which is the ratio of the contaminants' mass inhaled by the healthy person to that exhaled by the infected person. It was found that minimal exposure levels were reached when the infected person used low PV (in the range of 0-4 l/s) for the tandem seating and high PV(in the range of 9-13 l/s) for the face-to-face seating. Furthermore, the average iF for face-to-face seating was 31% lower than that of tandem seating for coughing and 86% for breathing for all possible PV ventilation cases.
راعي المشروعThe authors would like to acknowledge the financial support of the Munib and Angela Masri Institute of Energy and Natural Resources at the American University of Beirut grant award 103973 . In addition, the American University of Beirut PhD scholarship to Ms. Katramiz is highly acknowledged. The authors would like to also acknowledge the American University of Beirut (AUB) and the National Council for Scientific Research of Lebanon (CNRS-L) for granting a doctoral fellowship to Ms. Douaa Al Assaad. In addition, this collaborative research was made possible by the award [QUEX-CENG-ASPIRE-11/12-7] from ASPIRE Zone Foundation, Doha, Qatar.
اللغةen
الناشرElsevier
الموضوعCross-contamination
Individual control
Individual preference
Indoor air quality
Personalized ventilation
العنوانEffect of individually controlled personalized ventilation on cross-contamination due to respiratory activities
النوعArticle
رقم المجلد194
dc.accessType Abstract Only


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