Optimizing optical fiber daylighting system for indoor agriculture applications

Vu, Duc Tu; Nghiem, Vu Thi; Tien, Tran Quoc; Hieu, Nguyen Manh; Minh, Kieu Ngoc; Vu, Hoang; Shin, Seoyong; Vu, Ngoc Hai

doi:10.1016/j.solener.2022.10.015

Cited by 13 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A Fresnel lens is another type of CSP system that utilizes a stepped structure to mimic the effects of a traditional curved lens while minimizing material usage. This design not only reduces manufacturing costs but also offers unique advantages in solar thermal applications [83]. By focusing sunlight onto a specific target, such as a solar receiver or heat exchanger, Fresnel lenses concentrate solar radiation and elevate temperatures, making them an attractive candidate for various thermal energy applications.…”

Section: Solar Concentratorsmentioning

confidence: 99%

Harnessing Solar Power: A Review of Photovoltaic Innovations, Solar Thermal Systems, and the Dawn of Energy Storage Solutions

Hasan,

Hossain,

Mofijur

et al. 2023

Energies

View full text Add to dashboard Cite

The goal of this review is to offer an all-encompassing evaluation of an integrated solar energy system within the framework of solar energy utilization. This holistic assessment encompasses photovoltaic technologies, solar thermal systems, and energy storage solutions, providing a comprehensive understanding of their interplay and significance. It emphasizes the importance of solar energy as a renewable resource and its role in addressing global energy demand and mitigating climate change. The review highlights the significance of advancements in various solar energy technologies, focusing on their environmental benefits, including greenhouse gas emissions reduction and air and water pollution mitigation. It explores the evolution of photovoltaic technologies, categorizing them into first-, second-, and third-generation photovoltaic cells, and discusses the applications of solar thermal systems such as water heaters, air heaters, and concentrators. The paper examines key advancements in energy storage solutions for solar energy, including battery-based systems, pumped hydro storage, thermal storage, and emerging technologies. It references recent published literature to present findings on energy payback time, carbon footprint, and performance metrics. Challenges to widespread adoption are discussed, including cost and economic viability, intermittency, environmental impacts, and grid integration. Strategies to overcome these challenges, such as cost reduction, policy support, energy storage integration, and sustainable practices, are presented based on published literature. By bridging gaps in existing literature, this comprehensive resource aims to equip researchers, policymakers, and industry professionals with insights into forging a sustainable and renewable energy future.

show abstract

Section: Solar Concentratorsmentioning

confidence: 99%

Harnessing Solar Power: A Review of Photovoltaic Innovations, Solar Thermal Systems, and the Dawn of Energy Storage Solutions

Hasan,

Hossain,

Mofijur

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…However, we have constructed the large Fresnel lens concentrator and tested it [96], which can collect and transmit much more sunlight than a larger lens. To increase the focal point and improve uniform flux distribution, a homogenizer was considered at the fiber entrance, The Fresnel lens performed better than the parabolic concentrator in collecting solar energy for indoor illumination, due to the photometric and structural simplicity of its operation [66,97]. However, according to the principles of optics, parabolic mirrors possess The Fresnel lens performed better than the parabolic concentrator in collecting solar energy for indoor illumination, due to the photometric and structural simplicity of its operation [66,97].…”

Section: Primary Concentratormentioning

confidence: 99%

“…To increase the focal point and improve uniform flux distribution, a homogenizer was considered at the fiber entrance, The Fresnel lens performed better than the parabolic concentrator in collecting solar energy for indoor illumination, due to the photometric and structural simplicity of its operation [66,97]. However, according to the principles of optics, parabolic mirrors possess The Fresnel lens performed better than the parabolic concentrator in collecting solar energy for indoor illumination, due to the photometric and structural simplicity of its operation [66,97]. However, according to the principles of optics, parabolic mirrors possess the best-concentrating properties due to the absence of astigmatic aberration, chromatic The Fresnel lens performed better than the parabolic concentrator in collecting solar energy for indoor illumination, due to the photometric and structural simplicity of its operation [66,97].…”

Section: Primary Concentratormentioning

confidence: 99%

“…However, according to the principles of optics, parabolic mirrors possess The Fresnel lens performed better than the parabolic concentrator in collecting solar energy for indoor illumination, due to the photometric and structural simplicity of its operation [66,97]. However, according to the principles of optics, parabolic mirrors possess the best-concentrating properties due to the absence of astigmatic aberration, chromatic The Fresnel lens performed better than the parabolic concentrator in collecting solar energy for indoor illumination, due to the photometric and structural simplicity of its operation [66,97]. However, according to the principles of optics, parabolic mirrors possess the best-concentrating properties due to the absence of astigmatic aberration, chromatic dispersion, and the lightest weight under the same aperture [63,98].…”

Section: Primary Concentratormentioning

confidence: 99%

See 1 more Smart Citation

Analysis and Comparison of Daylighting Technologies: Light Pipe, Optical Fiber, and Heliostat

2023

View full text Add to dashboard Cite

This article analyzes and compares three daylighting technologies: light pipes, optical fibers, and heliostats. This work aims to evaluate their efficiency, sustainability, and cost-effectiveness in providing natural light to indoor spaces. The analysis includes a review of the principles behind each technology, the design and development of the prototypes and experiments carried out by our research team, their advantages and disadvantages, and their applications in different settings. The comparison is based on several criteria, such as installation, cost, efficiency, output spectrum, and hybrid system. The results indicate that each technology has its unique features and is suited to specific applications. Light pipes are effective for short distances, and they can be easily integrated into existing buildings. Optical fibers are suitable for long distances and offer flexibility in design, but they require more maintenance. Heliostats are ideal for large spaces, but they are expensive to install and operate. Overall, this study provides valuable insight into the strengths and weaknesses of three daylighting technologies and helps designers and architects make informed decisions when selecting the most appropriate solution for future work.

show abstract

“…Transmission of this size of the flux requires a beam composed of hundreds of silica fibers with a diameter of 100 um, and the cost is difficult to reduce [26]. However, PMMA plastic fibers perfectly avoid this cost bottleneck [27]. The typical diameter of PMMA plastic fiber is 0.5-3 mm, and the acceptance angle can reach 30 • , which can be perfectly coupled with the concentrating flux of the lens [28].…”

Section: Introductionmentioning

confidence: 99%

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

Liu

Zou

et al. 2023

Sustainability

View full text Add to dashboard Cite

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.

show abstract

Optimizing optical fiber daylighting system for indoor agriculture applications

Cited by 13 publications

References 23 publications

Harnessing Solar Power: A Review of Photovoltaic Innovations, Solar Thermal Systems, and the Dawn of Energy Storage Solutions

Harnessing Solar Power: A Review of Photovoltaic Innovations, Solar Thermal Systems, and the Dawn of Energy Storage Solutions

Analysis and Comparison of Daylighting Technologies: Light Pipe, Optical Fiber, and Heliostat

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

Contact Info

Product

Resources

About