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Simulation of Daylight Using Different Diameter Light Pipes for Optimizing Daylighting in Office Buildings
Lighting is crucial for creating energy-efficient and visually comfortable office spaces, especially in deep-plan buildings where natural daylight cannot reach. Light pipes, or tubular daylighting devices, are innovative solutions for bringing daylight into such spaces. They improve indoor environmental quality and reduce artificial lighting. This study investigates the impact of varying light pipe diameters on daylight distribution, uniformity and overall efficiency in office environments. Using advanced simulation tools e.g., EnergyPlus, Open Studio and Radiance, models were developed to analyze light levels under different configurations. The findings reveal that larger diameter light pipes allow more daylight penetration, enhancing illumination levels at the center of spaces while diminishing near the periphery. The findings of this research yields that there exists a trade-off between increased illumination and decreased uniformity. Maximum illuminance of 179 lux was achieved with a 0.50m diameter light pipe, demonstrating its superior performance over smaller diameters. However, larger diameters require more space and higher costs, while smaller ones are less efficient in deep spaces. Uniformity ratios ranged from 0.36 to 0.37, indicating uneven illumination distribution. The study highlights the importance of balancing light pipe diameter with architectural constraints, energy efficiency, and user comfort. These insights provide a basis for designing sustainable office spaces with optimal daylighting strategies, ensuring both energy savings and occupant well-being. As this study systematically investigated the relationship between diameters and illumination levels, this research contributes to the broader body of knowledge on daylighting strategies for architects and engineers in optimizing the design of daylighting systems in buildings.
Simulation of Daylight Using Different Diameter Light Pipes for Optimizing Daylighting in Office Buildings
Lighting is crucial for creating energy-efficient and visually comfortable office spaces, especially in deep-plan buildings where natural daylight cannot reach. Light pipes, or tubular daylighting devices, are innovative solutions for bringing daylight into such spaces. They improve indoor environmental quality and reduce artificial lighting. This study investigates the impact of varying light pipe diameters on daylight distribution, uniformity and overall efficiency in office environments. Using advanced simulation tools e.g., EnergyPlus, Open Studio and Radiance, models were developed to analyze light levels under different configurations. The findings reveal that larger diameter light pipes allow more daylight penetration, enhancing illumination levels at the center of spaces while diminishing near the periphery. The findings of this research yields that there exists a trade-off between increased illumination and decreased uniformity. Maximum illuminance of 179 lux was achieved with a 0.50m diameter light pipe, demonstrating its superior performance over smaller diameters. However, larger diameters require more space and higher costs, while smaller ones are less efficient in deep spaces. Uniformity ratios ranged from 0.36 to 0.37, indicating uneven illumination distribution. The study highlights the importance of balancing light pipe diameter with architectural constraints, energy efficiency, and user comfort. These insights provide a basis for designing sustainable office spaces with optimal daylighting strategies, ensuring both energy savings and occupant well-being. As this study systematically investigated the relationship between diameters and illumination levels, this research contributes to the broader body of knowledge on daylighting strategies for architects and engineers in optimizing the design of daylighting systems in buildings.
Simulation of Daylight Using Different Diameter Light Pipes for Optimizing Daylighting in Office Buildings
Paul, Shajib (author) / Chowdhury, Sajal (author) / Joarder, Md. Ashikur Rahman (author)
2025-01-16
doi:10.56557/ajocr/2025/v10i19052
Asian Journal of Current Research; Vol. 10 No. 1 (2025): 2025 - Volume 10 [Issue 1]; 28-44 ; 2456-804X
Article (Journal)
Electronic Resource
English
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