Empirical Evaluation of the Effect of Heat Gain from Fiber Optic Daylighting System on Tropical Building Interiors

Munaaim, Muhammad Arkam Che; Al-Obaidi, Karam M.; Ismail, Mohd Rodzi; Rahman, Abdul Malek Abdul

doi:10.3390/su6129231

Cited by 7 publications

(4 citation statements)

References 17 publications

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“…WWR: window to wall ratio; (7). Pattern: Delaunay, Voronoi division pattern number (number of seed points of patterns); (8). Random: Delaunay, a random variable to be added to the Voronoi type.…”

Section: Daylight Factor (Df)mentioning

confidence: 99%

“…Sustainability 2016, 8,1220 13 of 16  Computer-assisted daylight simulation can help and assist the conventional approach, which can be maximized when dealing with large amounts of data and non-liner algorithms such as in the case of random, Delaunay, and Voronoi.…”

Section: Appendix Amentioning

confidence: 99%

“…When designed with proper glare control and minimized solar heat gain, daylighting provides high-quality light while significantly reducing energy consumption for lighting and cooling. An effective facade shading design should contribute to the creation of such an environment that will reduce building energy expenditure and optimize daylight distribution [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Feasibility Study on Parametric Optimization of Daylighting in Building Shading Design

Lee

Han²,

Lee

2016

Sustainability

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Shading design to optimize daylighting is in many cases achieved through a designer's sense based on prior knowledge and experience. However, computer-assisted parametric techniques can be utilized for daylighting design in an easy and much more accurate way. If such tools are utilized in the early stages of a project, this can be more effective for sustainable design. This study compares the conventional approach, which depends on a designer's sense of judgment to create optimal indoor lighting conditions by adjusting louver shapes and window patterns, with the approach of making use of genetic algorithms. Ultimately, this study discusses the advantages and disadvantages of those two approaches. As a starting point, 30 designers were instructed to design a facade by manually adjusting several input parameters of shading. The parameters govern six kinds of louver and window types, with the ratio of analysis grid surface area achieving a daylight factor of 2%-5%. Secondly, input parameters were automatically created by using genetic algorithm optimization methods to find optimal fitness data. As a conclusion, conventional approaches result in a strong disposition toward designing certain shading types represented by linear relationships. Computer-assisted daylight simulation can help influence this, being effective when dealing with a large amount of data and non-linear relationships.

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Section: Daylight Factor (Df)mentioning

confidence: 99%

Section: Appendix Amentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Feasibility Study on Parametric Optimization of Daylighting in Building Shading Design

Lee

Han²,

Lee

2016

Sustainability

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“…Lighting is an important part of building energy consumption [1,2]. For commercial buildings, lighting electricity consumption accounts for around 20-30% of the total building energy consumption [3,4]. Bringing daylight into the room can reduce electric lighting by 50-80% [5].…”

Section: Introductionmentioning

confidence: 99%

Measurement and Analysis of Light Leakage in Plastic Optical Fiber Daylighting System

Liu

Zou

et al. 2023

Sustainability

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The daylighting systems via polymethylmethacrylate (PMMA) plastic optical fibers have obvious cost advantages and have been widely studied. However, there is light leakage when PMMA optical fibers transmit concentrated sunlight, resulting in a transmission efficiency lower than the theoretical value. This research aims to quantitatively study the light leakage effect of PMMA optical fibers. Concentrated sunlight was used as the sunlight source instead of a monochromatic laser. An adjustable diaphragm was used to adjust the angle of the incident light, and the infrared filter and heat-absorbing glass were used to solve the overheating problem of PMMA fibers. The results show that when the incident angle is greater than 13°, the relative transmission efficiency of the fibers drops rapidly, which means that the light leakage deteriorates. The data also show that the angle of the output beam of PMMA optical fibers is ±30°, which is independent of the angle of the incident beam. Based on this conclusion, a PMMA optical fiber daylighting system with an incident angle of 13° was developed, which has higher transmission efficiency than previously developed systems. This study indicates that the angle effect of light leakage should be considered in the design of a plastic optical fiber daylighting system.

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A Review of Active Day Lighting System in Commercial Buildings with the Application of Optical Fiber

Udhwani¹,

Soni²

2022

Technological Advancement in Mechanical and Automotive Engineering

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Empirical Evaluation of the Effect of Heat Gain from Fiber Optic Daylighting System on Tropical Building Interiors

Cited by 7 publications

References 17 publications

Feasibility Study on Parametric Optimization of Daylighting in Building Shading Design

Feasibility Study on Parametric Optimization of Daylighting in Building Shading Design

Measurement and Analysis of Light Leakage in Plastic Optical Fiber Daylighting System

A Review of Active Day Lighting System in Commercial Buildings with the Application of Optical Fiber

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