@article{article_563021, title={Effects of Luminaire Angle on Illumination Performance in Tunnel Lighting}, journal={Balkan Journal of Electrical and Computer Engineering}, volume={7}, pages={250–256}, year={2019}, DOI={10.17694/bajece.563021}, url={https://izlik.org/JA74AB52TS}, author={Cengız, Mehmet Sait}, keywords={Illumination,luminance,road lighting,tunnel lighting}, abstract={<span lang="en-us" style="font-size:10pt;font-family:’Times New Roman’, serif;" xml:lang="en-us">In this study, the
effect of luminaire angle on the path parameters of tunnel lighting was
investigated. Tunnel illumination was performed with a simulation program
adapted to CIE 88-2004 standards. The lighting performance parameters were compared
while the angle of the luminaire was 0°, 5°, 10° and 15°. According to the
simulation results, the luminaire angle is 0 degrees and the highest efficiency
is reached. As the luminaire angle increased, the yield decreased in direct
proportion to the angle. The highest lighting efficiency was observed at 0
degrees and the lowest illumination efficiency was observed at 15 degrees. This
problem can be overcome by using a higher power lamp in angled lighting. As a
result, it is revealed that angled lighting should be avoided in highway and
tunnel lighting. </span>}, number={3}