Daylighting System Based on Novel Design of Linear Fresnel lens

Pham, Thanh Son; Vu, Ngoc Hai; Shin, Seoyong

doi:10.3390/buildings7040092

Cited by 20 publications

(8 citation statements)

References 28 publications

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“…Pham et al presented a daylighting system with a new design of a linear Fresnel lens that can achieve high uniformity. Each groove of the lens uniformly disseminates sunlight over the receiver in such a way that the entire lens also disseminates sunlight over the receiver uniformly [52]. In their design, the collector or receiver is built with a convergent linear Fresnel lens, whereas the divergent linear Fresnel lens is used in fabricating the distributor.…”

Section: Fresnel Lensmentioning

confidence: 99%

Review of Active and Passive Daylighting Technologies for Sustainable Building

Onubogu

Chong

Tan

2021

International Journal of Photoenergy

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According to the International Energy Agency, nearly 20% of worldwide electricity is used up by lighting. This is equal to the total electricity nuclear power generates. Thus, it is needy to explore new technologies for direct use of sunlight via integrating daylight system to the building, which is cost-saving, environment-friendly, and a green solution rather than indirect conversion of electricity to lighting even from renewable sources. In this paper, we present a review on the existing technologies of daylighting systems up to date and how they can provide lighting in a building interior via collection and distribution of sunlight. Our review is a comprehensive study to embrace both passive daylighting system with stationary design and active daylighting system equipped with sun tracking. The economic feasibility, general challenges, and prospects of daylighting systems are also discussed to understand the existing problems that hinder the extensive deployment of daylighting systems. In conclusion, more research works are needed in improving the technological development of a daylighting system so that it is more affordable, environment-friendly, less energy-intensive, and easy to install and gives uniform illumination for the effective application in both commercial building and residential houses.

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Section: Fresnel Lensmentioning

confidence: 99%

Review of Active and Passive Daylighting Technologies for Sustainable Building

Onubogu

Chong

Tan

2021

International Journal of Photoenergy

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“…In order to attain more effective use of dynamic daylight, stable optical components and active devices of the daylighting system were studied. Common optical components are high-reflectivity light pipes [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31], Fresnel lens [32][33][34][35][36][37][38][39][40][41][42][43][44], linear Fresnel lens [45][46][47], optical fiber with different materials [32], light guide [39], parabolic concentrator [48][49][50], Compound Parabolic Concentrator (CPC) [38,47,51,52], dish concentrator [1,53], cold mirror [48], IR filer [32,38], hot mirror [49] and prism structure ...…”

Section: Of 34mentioning

confidence: 99%

A Review of Daylighting System: For Prototype Systems Performance and Development

et al. 2019

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Daylighting systems make daylight illuminance possible, and the development of prototype daylighting systems can provide more efficient daylight illuminance. The purpose of this article is to review the development and performance of prototype daylighting systems in the last decade. The passive and active daylighting systems are listed separately and divided into the four categories by the presence and absence of hybrid. Each prototype daylighting system was evaluated in terms of cost and daylight performance and as well as their novel optical design. We evaluated the architecture and daylighting principles of each system by reviewing individual prototype daylighting systems. The cost of prototype systems still poses a challenge to development. How to use passive or active systems in different environments and whether or not electrical lighting assistance is needed is a controversial issue. However, active daylighting systems equipped with solar tracking systems are still mainstream. This research is a valuable resource for daylight researchers and newcomers. It is helpful to understand the advantages of various prototype daylighting systems and commercial daylighting systems that have been developed for many years; moreover, it is also possible to know the research directions suggested by the prototype daylighting systems. These will be of further use in developing innovative and better daylighting systems and designs.

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“…The passive collection of natural light is the easiest way to obtain it and is relatively easy to control [11,12]. Familiar active light collectors include linear Fresnel lenses [13][14][15][16] and compound parabolic light collectors [17,18]. We can also see the use of novel light collection methods [9,13] at the entrance of the system, which optimize the light collection efficiency to minimize the proportion of indoor lighting auxiliary systems.…”

Section: Introductionmentioning

confidence: 99%

Development and Testing of a Modular Sunlight Transport System Employing Free-Form Mirrors

et al. 2022

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The energy consumption of artificial lighting and its impacts on health have stimulated research into natural lighting systems. However, natural lighting system designs are mainly custom, making them costly and difficult to replicate. This study took an office space as a testing field in order to develop a highly adaptable and adjustable modular natural light illumination system. We divided the system into multiple module designs, demonstrated the use of simple development and fabrication processes and integrated a freeform reflector into the system. In creating a freeform mirror, the optical simulation results of the tested field were regressed (through polynomial regression) to achieve a uniformly illuminated plane, and a high-efficiency light-emitting system was produced. Finally, an active heliostat was used to collect sunlight, combined with actual manufacturing verification and measurement results, in order to create an excellent indoor lighting system. As a result, we presented a low-cost and easy-to-design natural light illumination system for the assisted lighting of office areas.

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Daylighting System Based on Novel Design of Linear Fresnel lens

Cited by 20 publications

References 28 publications

Review of Active and Passive Daylighting Technologies for Sustainable Building

Review of Active and Passive Daylighting Technologies for Sustainable Building

A Review of Daylighting System: For Prototype Systems Performance and Development

Development and Testing of a Modular Sunlight Transport System Employing Free-Form Mirrors

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