Enhancing Daylight Performance and Visual Comfort in Office Buildings with Electrochromic Glazing: A Case Study of Mashhad
Electrochromic Glazing (EC) has seen a significant surge in adoption today, primarily attributed to its pivotal role in enhancing visual comfort, mitigating excessive heat, regulating cooling and heating requirements, and curbing lighting consumption, especially within office buildings. Moreover, el...
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Babol Noshirvani University of Technology
2025-01-01
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| Series: | Iranica Journal of Energy and Environment |
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| Online Access: | https://www.ijee.net/article_189818_59f94beb936c3ecf2466b8c8a8d27e97.pdf |
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| author | H. Kamelnia A. Ghalehnovi |
| author_facet | H. Kamelnia A. Ghalehnovi |
| author_sort | H. Kamelnia |
| collection | DOAJ |
| description | Electrochromic Glazing (EC) has seen a significant surge in adoption today, primarily attributed to its pivotal role in enhancing visual comfort, mitigating excessive heat, regulating cooling and heating requirements, and curbing lighting consumption, especially within office buildings. Moreover, electrochromic glazing effectively contributes to glare control. This research aims to explore the impact of electrochromic glazing, as compared to conventional clear windows, on both the south and north facades, with the overarching goal of enhancing thermal and visual comfort within an office complex located in Mashhad. The research process unfolds in two key steps. Firstly, a comprehensive building simulation was conducted to assess daylight performance and gauge thermal and visual comfort using the GrassHopper plugin. Ubsequently, the Honeybee and Ladybug plugins were harnessed to evaluate the Discomfort Glare Probability (DGP) index and the Useful Daylight Illuminance (UDI) index. The findings of this study underscore the compelling advantages of electrochromic glazing over conventional clear windows as a prime choice to maintain balanced daylight levels throughout the day. In practice, using electrochromic glazing on both north and south facades of a building reduces the annual heating and cooling energy demand by 6.5 and 4.5%, respectively. Additionally, it has a significant impact on reducing intrusive light radiation and intolerable glare levels compared to reference transparent windows, with reductions of 40 and 34.52%, respectively. |
| format | Article |
| id | doaj-art-8fac50e52b5c46e0aa151a59a040c341 |
| institution | OA Journals |
| issn | 2079-2115 2079-2123 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Babol Noshirvani University of Technology |
| record_format | Article |
| series | Iranica Journal of Energy and Environment |
| spelling | doaj-art-8fac50e52b5c46e0aa151a59a040c3412025-08-20T02:37:21ZengBabol Noshirvani University of TechnologyIranica Journal of Energy and Environment2079-21152079-21232025-01-0116115416310.5829/ijee.2025.16.01.16189818Enhancing Daylight Performance and Visual Comfort in Office Buildings with Electrochromic Glazing: A Case Study of MashhadH. Kamelnia0A. Ghalehnovi1Faculty of Architecture and Urban Planning, Ferdowsi University of Mashhad, Mashhad, IranDepartment of Architecture Group, Khorasan Institute of Higher Education, Mashhad, IranElectrochromic Glazing (EC) has seen a significant surge in adoption today, primarily attributed to its pivotal role in enhancing visual comfort, mitigating excessive heat, regulating cooling and heating requirements, and curbing lighting consumption, especially within office buildings. Moreover, electrochromic glazing effectively contributes to glare control. This research aims to explore the impact of electrochromic glazing, as compared to conventional clear windows, on both the south and north facades, with the overarching goal of enhancing thermal and visual comfort within an office complex located in Mashhad. The research process unfolds in two key steps. Firstly, a comprehensive building simulation was conducted to assess daylight performance and gauge thermal and visual comfort using the GrassHopper plugin. Ubsequently, the Honeybee and Ladybug plugins were harnessed to evaluate the Discomfort Glare Probability (DGP) index and the Useful Daylight Illuminance (UDI) index. The findings of this study underscore the compelling advantages of electrochromic glazing over conventional clear windows as a prime choice to maintain balanced daylight levels throughout the day. In practice, using electrochromic glazing on both north and south facades of a building reduces the annual heating and cooling energy demand by 6.5 and 4.5%, respectively. Additionally, it has a significant impact on reducing intrusive light radiation and intolerable glare levels compared to reference transparent windows, with reductions of 40 and 34.52%, respectively.https://www.ijee.net/article_189818_59f94beb936c3ecf2466b8c8a8d27e97.pdfdiscomfort glare probabilityelectrochromic glazingmodern office buildinguseful daylight illuminancevisual comfort |
| spellingShingle | H. Kamelnia A. Ghalehnovi Enhancing Daylight Performance and Visual Comfort in Office Buildings with Electrochromic Glazing: A Case Study of Mashhad Iranica Journal of Energy and Environment discomfort glare probability electrochromic glazing modern office building useful daylight illuminance visual comfort |
| title | Enhancing Daylight Performance and Visual Comfort in Office Buildings with Electrochromic Glazing: A Case Study of Mashhad |
| title_full | Enhancing Daylight Performance and Visual Comfort in Office Buildings with Electrochromic Glazing: A Case Study of Mashhad |
| title_fullStr | Enhancing Daylight Performance and Visual Comfort in Office Buildings with Electrochromic Glazing: A Case Study of Mashhad |
| title_full_unstemmed | Enhancing Daylight Performance and Visual Comfort in Office Buildings with Electrochromic Glazing: A Case Study of Mashhad |
| title_short | Enhancing Daylight Performance and Visual Comfort in Office Buildings with Electrochromic Glazing: A Case Study of Mashhad |
| title_sort | enhancing daylight performance and visual comfort in office buildings with electrochromic glazing a case study of mashhad |
| topic | discomfort glare probability electrochromic glazing modern office building useful daylight illuminance visual comfort |
| url | https://www.ijee.net/article_189818_59f94beb936c3ecf2466b8c8a8d27e97.pdf |
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