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Architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without HVLS fan in the City Center Mosques

The use of air-conditioning (AC) in conjunction with high-volume, low-speed (HVLS) fans has become a trend in retrofitted mosque buildings in Malaysia to improve thermal comfort conditions. However, the energy impact of operating AC and HVLS fan simultaneously is unknown. This study compares the ann...

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Main Authors: Mohamed, Nur Amalina Syairah, Shari, Zalina, Dahlan, Nur Dalilah, Idowu, Ibiyeye Aminat
Format: Article
Published: University of Malaya 2021
Online Access:http://psasir.upm.edu.my/id/eprint/95995/
https://ejournal.um.edu.my/index.php/jdbe/article/view/29778/13477
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spelling my.upm.eprints.959952023-03-09T03:33:24Z http://psasir.upm.edu.my/id/eprint/95995/ Architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without HVLS fan in the City Center Mosques Mohamed, Nur Amalina Syairah Shari, Zalina Dahlan, Nur Dalilah Idowu, Ibiyeye Aminat The use of air-conditioning (AC) in conjunction with high-volume, low-speed (HVLS) fans has become a trend in retrofitted mosque buildings in Malaysia to improve thermal comfort conditions. However, the energy impact of operating AC and HVLS fan simultaneously is unknown. This study compares the annual energy consumptions between mosques with and without HVLS fan installed and investigates the optimum temperature setpoints and operational profile to improve the mosques' energy efficiency. The Building Energy Intensity (BEI) comparison did not clearly show the superiority between the two groups in terms of energy performance. The study found that both studied mosques could produce around 1-4.9% energy reduction when the AC temperature setpoint was increased by 1 ̊C and could result in the highest cost-saving of about 4.9% when the temperature was set at 27 ̊C. A 30-minute AC operation during each daily prayer, except Subuh, could save between 14.8-16.7% annual energy consumption and about 15.2-16.6% annual energy cost. The paper concludes that the selection of 24-27 ̊C temperature setpoints with a 30-minute AC operational profile during prayers time, considering Friday prayers and Ramadhan activities, produced 18.4-20.6% savings in energy cost. This study calls for reevaluations of AC temperature setpoints configuration standards and operational characteristics in mosque buildings to reduce energy consumption. This paper contributes to the development of future energy standards for mosque designs and operations in Malaysia. University of Malaya 2021 Article PeerReviewed Mohamed, Nur Amalina Syairah and Shari, Zalina and Dahlan, Nur Dalilah and Idowu, Ibiyeye Aminat (2021) Architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without HVLS fan in the City Center Mosques. Journal of Design and Built Environment, 21 (2). 19 - 38. ISSN 1823-4208; ESSN: 2232-1500 https://ejournal.um.edu.my/index.php/jdbe/article/view/29778/13477
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description The use of air-conditioning (AC) in conjunction with high-volume, low-speed (HVLS) fans has become a trend in retrofitted mosque buildings in Malaysia to improve thermal comfort conditions. However, the energy impact of operating AC and HVLS fan simultaneously is unknown. This study compares the annual energy consumptions between mosques with and without HVLS fan installed and investigates the optimum temperature setpoints and operational profile to improve the mosques' energy efficiency. The Building Energy Intensity (BEI) comparison did not clearly show the superiority between the two groups in terms of energy performance. The study found that both studied mosques could produce around 1-4.9% energy reduction when the AC temperature setpoint was increased by 1 ̊C and could result in the highest cost-saving of about 4.9% when the temperature was set at 27 ̊C. A 30-minute AC operation during each daily prayer, except Subuh, could save between 14.8-16.7% annual energy consumption and about 15.2-16.6% annual energy cost. The paper concludes that the selection of 24-27 ̊C temperature setpoints with a 30-minute AC operational profile during prayers time, considering Friday prayers and Ramadhan activities, produced 18.4-20.6% savings in energy cost. This study calls for reevaluations of AC temperature setpoints configuration standards and operational characteristics in mosque buildings to reduce energy consumption. This paper contributes to the development of future energy standards for mosque designs and operations in Malaysia.
format Article
author Mohamed, Nur Amalina Syairah
Shari, Zalina
Dahlan, Nur Dalilah
Idowu, Ibiyeye Aminat
spellingShingle Mohamed, Nur Amalina Syairah
Shari, Zalina
Dahlan, Nur Dalilah
Idowu, Ibiyeye Aminat
Architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without HVLS fan in the City Center Mosques
author_facet Mohamed, Nur Amalina Syairah
Shari, Zalina
Dahlan, Nur Dalilah
Idowu, Ibiyeye Aminat
author_sort Mohamed, Nur Amalina Syairah
title Architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without HVLS fan in the City Center Mosques
title_short Architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without HVLS fan in the City Center Mosques
title_full Architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without HVLS fan in the City Center Mosques
title_fullStr Architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without HVLS fan in the City Center Mosques
title_full_unstemmed Architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without HVLS fan in the City Center Mosques
title_sort architectural sustainability on the impacts of different air-conditioning operational profiles and temperature setpoints on energy consumption: comparison between mosques with and without hvls fan in the city center mosques
publisher University of Malaya
publishDate 2021
url http://psasir.upm.edu.my/id/eprint/95995/
https://ejournal.um.edu.my/index.php/jdbe/article/view/29778/13477
_version_ 1761620374840147968
score 13.211869

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