Thermal conditions in workspace centre and adjacent to inclined glazed façade of a green-certified office building in the tropics

This paper aims to assess the effectiveness of incorporating inclined glazing with double low-emissivity (low-e) glazing, in glazed, green-certified office buildings in Malaysia. The study was conducted in an open workspace facing south and west. Comparisons were conducted between measurements made...

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Main Author: Abdultawab M. Qahtan
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X23011048
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author Abdultawab M. Qahtan
author_facet Abdultawab M. Qahtan
author_sort Abdultawab M. Qahtan
collection DOAJ
description This paper aims to assess the effectiveness of incorporating inclined glazing with double low-emissivity (low-e) glazing, in glazed, green-certified office buildings in Malaysia. The study was conducted in an open workspace facing south and west. Comparisons were conducted between measurements made on weekdays when cooling systems were active and weekends when they were not in use. The analysis considered two different zones based on the proximity to the glazed facade: the adjacent zone and the central zone. The thermal performance of the glazed facade and the indoor thermal conditions were measured from July 25th to August 30th. The findings indicate that the building successfully maintains indoor air temperature within the recommended thermal range of 23 °C–26 °C, as specified by the Malaysia Standard. However, it was noted that the air velocity fell below the required level for optimal indoor air circulation. Measuring the globe temperature showed a remarkable difference, with the adjacent zone experiencing 4.1 °C higher temperatures due to radiant heat from the glazing. Additional research is suggested to assess the effectiveness of inclined and double low-e glazing in hot–arid climates like Saudi Arabia.
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spelling doaj.art-1a98e204843d456eac3921cb5830881c2024-01-12T04:56:26ZengElsevierCase Studies in Thermal Engineering2214-157X2024-01-0153103798Thermal conditions in workspace centre and adjacent to inclined glazed façade of a green-certified office building in the tropicsAbdultawab M. Qahtan0tawab444@gmail.com; Architectural Engineering Department, College of Engineering, Najran University, Najran, 66462, Kingdom of Saudi ArabiaThis paper aims to assess the effectiveness of incorporating inclined glazing with double low-emissivity (low-e) glazing, in glazed, green-certified office buildings in Malaysia. The study was conducted in an open workspace facing south and west. Comparisons were conducted between measurements made on weekdays when cooling systems were active and weekends when they were not in use. The analysis considered two different zones based on the proximity to the glazed facade: the adjacent zone and the central zone. The thermal performance of the glazed facade and the indoor thermal conditions were measured from July 25th to August 30th. The findings indicate that the building successfully maintains indoor air temperature within the recommended thermal range of 23 °C–26 °C, as specified by the Malaysia Standard. However, it was noted that the air velocity fell below the required level for optimal indoor air circulation. Measuring the globe temperature showed a remarkable difference, with the adjacent zone experiencing 4.1 °C higher temperatures due to radiant heat from the glazing. Additional research is suggested to assess the effectiveness of inclined and double low-e glazing in hot–arid climates like Saudi Arabia.http://www.sciencedirect.com/science/article/pii/S2214157X23011048Inclined glazingHeat gainThermal conditionGlobe temperatureGreen buildingWorkspace
spellingShingle Abdultawab M. Qahtan
Thermal conditions in workspace centre and adjacent to inclined glazed façade of a green-certified office building in the tropics
Case Studies in Thermal Engineering
Inclined glazing
Heat gain
Thermal condition
Globe temperature
Green building
Workspace
title Thermal conditions in workspace centre and adjacent to inclined glazed façade of a green-certified office building in the tropics
title_full Thermal conditions in workspace centre and adjacent to inclined glazed façade of a green-certified office building in the tropics
title_fullStr Thermal conditions in workspace centre and adjacent to inclined glazed façade of a green-certified office building in the tropics
title_full_unstemmed Thermal conditions in workspace centre and adjacent to inclined glazed façade of a green-certified office building in the tropics
title_short Thermal conditions in workspace centre and adjacent to inclined glazed façade of a green-certified office building in the tropics
title_sort thermal conditions in workspace centre and adjacent to inclined glazed facade of a green certified office building in the tropics
topic Inclined glazing
Heat gain
Thermal condition
Globe temperature
Green building
Workspace
url http://www.sciencedirect.com/science/article/pii/S2214157X23011048
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