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Comparative Study of Solar Optical Fibre and Electrical Light for Daylighting in Tunnel Threshold Zone L&E, Vol. 29, No. 6, 2021
Articles authors:
Canan Perdahci, Yahya Sogodok
Canan Perdahci, Ph. D., Associate Professor. She received the B. E. and M. Sc. degrees in electrical engineering from the University of Yildiz, Istanbul, Turkey, in 1991 and 1993, respectively, and the Ph. D. degree in electrical engineering from the University of Kocaeli, Kocaeli, Turkey, in 1997. In 1992, she joined the Department of Electrical Engineering, University of Kocaeli, as a Lecturer, and in 2019 became an Associate Professor. Her current research interests include LED lighting, UVC, power quality, tunnel lighting, road lighting
Yahya Sogodok received a B. Sc. degree in Electrical and Electronics from the Islamic University of Technology, Dhaka, Bangladesh, in 2018. Currently, he is a master student in the Department of Electrical Engineering at the University of Kocaeli. His current research interests include LED lighting, UVC, tunnel lighting, road lighting
Abstract:
In recent years, there has been a considerable increase in traffic accidents in the tunnel region, especially around the threshold and exit zones, due to the inappropriate lighting system of these zones; leading to the loss of humans properties and lives. Therefore, lighting designers strive to improve the illumination issues of the threshold and exit zones which bring about “black hole” and “white hole” effects, respectively. Several solutions are proposed: solar optical fibre lighting system as a natural lighting system and LED, fluorescent lighting system as the artificial lighting system. This paper aims to compare the natural and artificial lighting system to show which lighting system is better and the best solution to solve these issues. The previous study in the Huashuyan tunnel in China, where natural light, solar optical fibre was used to illuminate the threshold zone, is simulated in LITSTAR4D software using a customized HCL-TN LED luminaire of LITPA Сompany. The simulation result is compared with the previous result obtained when the solar optical fibre is used. The simulation outcome gave a satisfying result with an average luminance of 91.15 cd/m2, which is higher than the average luminance required by the threshold zone. However, it is less when compared to the average luminance of 181.31 cd/m2 produced by the solar optical fibre system. The overall uniformity of 0.42 is above the requirements in the CIE88:2004 standards.
References:
1. Drakou D., Burattini C., Bisegna F., and Gugliermetti F. Study of a daylight ‘filter’ zone in tunnels // 2015 IEEE15th Int. Conf. Environ. Electr. Eng. EEEIC2015 – Conf. Proc., 2015, pp. 649–652, DOI: 10.1109/EEEIC.2015.7165241. 2. Qin X., Zhang X., Qi S., and Han H. Design of solar optical fibre lighting system for enhanced lighting in highway tunnel threshold zone: A case study of huashuyan tunnel in China // Int. J. Photoenergy, Vol. 2015, 2015, DOI: 10.1155/2015/471364. 3. B. Liang et al. Lighting for road tunnels: The influence of CCT of light sources on reaction time // Displays, 2020, Vol. 61, p. 101931, DOI: 10.1016/j.displa.2019.101931. 4 Solar Lighting AB Paper, Parans W. The Importance of Illumination and Natural Lighting for Tunnels // p. 18, 2020, Available Online: https://www.parans.com/. 5. Sataloff R.T., Johns M.M., and Kost K.M. Solar lighting system Himawari // p. 5, 2019, Available Online: https://www.himawari-net.co.jp. 6. Deepak P.R. and Madhu Sharma. Fiber Optic Daylighting System // Int. J. Eng. Res., 2015, Vol. 4, #03, pp. 637–639, DOI: 10.17577/ijertv4is030738. 7. Gil-Martín L. M., Gómez-Guzmán A., and Peña-García A. Use of diffusers materials to improve the homogeneity of sunlight under pergolas installed in road tunnels portals for energy savings // Tunn. Undergr. Sp. Technol., 2015, Vol. 48, pp. 123–128, DOI: 10.1016/j.tust.2015.03.001. 8. Lightiıng L. HCL-TN Litpa Tunnel Luminaire / Catalogue, p. 2, Available Online: https://litpa.com/indoor/?GucID=37&SCatID=129&&gl=37. 9. International Commission on Illumination, “Guide for the lighting of road tunnels and underpasses,” p. 40, 2004. 10. T.P. User, “LITESTAR10 Tunnel Plus User ‘ s Manual,” no. June 2011.
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