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Integrated energy, daylighting and visual comfort analysis of window systems in patient rooms
This study investigates the influence of glazing characteristics and shading device configuration on energy use and cost, daylighting performance and visual comfort. A typical patient room from a hospital design in Belgium is used as a baseline scenario and different window design alternatives are explored through parametric modeling. Based on the comparative analysis, the article discusses potential design options that allow for energy efficient and daylit patient rooms with higher visual comfort. The methodology combines dynamic energy simulations, daylighting and glare analysis. The results show that glazing characteristics and shading device configuration have a major impact on energy use/cost, daylighting and visual comfort and to achieve an overall good performance, selecting the right window configuration is essential. The findings indicate that pairing windows with suitable louvers configuration leads to a 40–80% reduction in cooling loads while maintaining sufficient daylighting levels (sDA300/50%>55) and reducing the UDI>3000lux values ca. 70%. The results suggest that the ASE metric may not provide a realistic picture regarding glare probability when we are aiming at controlling glare in specific locations within the room. This study emphasizes the need for integrated performance analysis in order to obtain a correct insight into the window systems performance. The proposed integrated approach can hence support design decisions regarding the most preferred window system to better fulfill the project objectives.
Integrated energy, daylighting and visual comfort analysis of window systems in patient rooms
This study investigates the influence of glazing characteristics and shading device configuration on energy use and cost, daylighting performance and visual comfort. A typical patient room from a hospital design in Belgium is used as a baseline scenario and different window design alternatives are explored through parametric modeling. Based on the comparative analysis, the article discusses potential design options that allow for energy efficient and daylit patient rooms with higher visual comfort. The methodology combines dynamic energy simulations, daylighting and glare analysis. The results show that glazing characteristics and shading device configuration have a major impact on energy use/cost, daylighting and visual comfort and to achieve an overall good performance, selecting the right window configuration is essential. The findings indicate that pairing windows with suitable louvers configuration leads to a 40–80% reduction in cooling loads while maintaining sufficient daylighting levels (sDA300/50%>55) and reducing the UDI>3000lux values ca. 70%. The results suggest that the ASE metric may not provide a realistic picture regarding glare probability when we are aiming at controlling glare in specific locations within the room. This study emphasizes the need for integrated performance analysis in order to obtain a correct insight into the window systems performance. The proposed integrated approach can hence support design decisions regarding the most preferred window system to better fulfill the project objectives.
Integrated energy, daylighting and visual comfort analysis of window systems in patient rooms
Eisazadeh, Nazanin (author) / Allacker, Karen (author) / De Troyer, Frank (author)
Science and Technology for the Built Environment ; 27 ; 1040-1055
2021-08-27
16 pages
Article (Journal)
Electronic Resource
Unknown
Taylor & Francis Verlag | 2022
|Advances on daylighting and visual comfort research
Online Contents | 2017
|Advances on daylighting and visual comfort research
British Library Online Contents | 2017
|Advances on daylighting and visual comfort research
Elsevier | 2016
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