Effect of Inlet Airflow Variables on Internal Natural Air Velocity as a Tool for Reducing Infection with COVID-19

Coronavirus (COVID-19) has affected day to day human lifestyle and also is slowing down the global economy of all countries. This pandemic has affected thousands of peoples, who are either sick, sitting in hospitals or are being killed due to the spread of this disease. This viral infection has forc...

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Main Author: Mohamed Abdelhady
Format: Article
Language:Arabic
Published: Arab Association for Islamic Civilization and Art 2021-07-01
Series:Journal of Architecture, Art & Humanistic Science
Subjects:
Online Access:https://mjaf.journals.ekb.eg/article_137296.html
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spelling doaj-a2d92e9f65f545028df580e2a9c15af52021-10-02T15:13:03ZaraArab Association for Islamic Civilization and ArtJournal of Architecture, Art & Humanistic Science2356-96542357-03422021-07-0162811613110.21608/mjaf.2020.39243.1813Effect of Inlet Airflow Variables on Internal Natural Air Velocity as a Tool for Reducing Infection with COVID-19Mohamed Abdelhady0architectural and civil constuctions - faculty of industrial education - Suez University - Suez EgyptCoronavirus (COVID-19) has affected day to day human lifestyle and also is slowing down the global economy of all countries. This pandemic has affected thousands of peoples, who are either sick, sitting in hospitals or are being killed due to the spread of this disease. This viral infection has forced people to stay at home almost time, and doing the majority of life requirements from home, such as work, education, shopping, etc. and hence nowadays, the main task for architects is to improve the quality of environment inside different architectural spaces for helping the users to do their needs and from other side for protect them from this virus. Achieving natural ventilation is one of the most important tools, which helps improving the air quality and hence providing healthy spaces for reducing the viral infection. Good designing the air inlet is playing the main role of achieving the mentioned healthy environment. This paper, therefore, presents a detailed evaluation of the impact of the inlet openings variables on the ventilation performance of a single-zone isolated building. The evaluation is based on the induced airflow velocity.High-resolution coupled 3D steady Autodesk CFD simulations of cross-ventilation are performed for shape (rectangular and square shape); building slop angle (0, 15, 30,45,60,75 and 90 degree); Wall to Floor Ratio (WFR) (10, 15, 20%) and Wall to Wall Ratio (WWR) (20, 25, 30%) of inlet openings.The results show that using rectangular window shape coupled with building slop 0 degree and WWR 30% represent the maximum ventilation ratio inside building, while the square window shape represents an air flow ratio less than the rectangulr shape for the same window area, building slop degree, WFR and WWR. Additionally, the window shape effect on the variation in the airflow ratio of buildings with slope angel bigger than or equal 60 degree, is too small that it can be ignored. https://mjaf.journals.ekb.eg/article_137296.htmlcovid-19; natural ventilation; inlet variables; cfd simulation
collection DOAJ
language Arabic
format Article
sources DOAJ
author Mohamed Abdelhady
spellingShingle Mohamed Abdelhady
Effect of Inlet Airflow Variables on Internal Natural Air Velocity as a Tool for Reducing Infection with COVID-19
Journal of Architecture, Art & Humanistic Science
covid-19; natural ventilation; inlet variables; cfd simulation
author_facet Mohamed Abdelhady
author_sort Mohamed Abdelhady
title Effect of Inlet Airflow Variables on Internal Natural Air Velocity as a Tool for Reducing Infection with COVID-19
title_short Effect of Inlet Airflow Variables on Internal Natural Air Velocity as a Tool for Reducing Infection with COVID-19
title_full Effect of Inlet Airflow Variables on Internal Natural Air Velocity as a Tool for Reducing Infection with COVID-19
title_fullStr Effect of Inlet Airflow Variables on Internal Natural Air Velocity as a Tool for Reducing Infection with COVID-19
title_full_unstemmed Effect of Inlet Airflow Variables on Internal Natural Air Velocity as a Tool for Reducing Infection with COVID-19
title_sort effect of inlet airflow variables on internal natural air velocity as a tool for reducing infection with covid-19
publisher Arab Association for Islamic Civilization and Art
series Journal of Architecture, Art & Humanistic Science
issn 2356-9654
2357-0342
publishDate 2021-07-01
description Coronavirus (COVID-19) has affected day to day human lifestyle and also is slowing down the global economy of all countries. This pandemic has affected thousands of peoples, who are either sick, sitting in hospitals or are being killed due to the spread of this disease. This viral infection has forced people to stay at home almost time, and doing the majority of life requirements from home, such as work, education, shopping, etc. and hence nowadays, the main task for architects is to improve the quality of environment inside different architectural spaces for helping the users to do their needs and from other side for protect them from this virus. Achieving natural ventilation is one of the most important tools, which helps improving the air quality and hence providing healthy spaces for reducing the viral infection. Good designing the air inlet is playing the main role of achieving the mentioned healthy environment. This paper, therefore, presents a detailed evaluation of the impact of the inlet openings variables on the ventilation performance of a single-zone isolated building. The evaluation is based on the induced airflow velocity.High-resolution coupled 3D steady Autodesk CFD simulations of cross-ventilation are performed for shape (rectangular and square shape); building slop angle (0, 15, 30,45,60,75 and 90 degree); Wall to Floor Ratio (WFR) (10, 15, 20%) and Wall to Wall Ratio (WWR) (20, 25, 30%) of inlet openings.The results show that using rectangular window shape coupled with building slop 0 degree and WWR 30% represent the maximum ventilation ratio inside building, while the square window shape represents an air flow ratio less than the rectangulr shape for the same window area, building slop degree, WFR and WWR. Additionally, the window shape effect on the variation in the airflow ratio of buildings with slope angel bigger than or equal 60 degree, is too small that it can be ignored.
topic covid-19; natural ventilation; inlet variables; cfd simulation
url https://mjaf.journals.ekb.eg/article_137296.html
work_keys_str_mv AT mohamedabdelhady effectofinletairflowvariablesoninternalnaturalairvelocityasatoolforreducinginfectionwithcovid19
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