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A Simple Method for Energy Saving in Tunnel Lighting

Alkan Aksoy


Number of highway tunnels continues to increase reducing transport times and costs around the world. As the length of the tunnel increases, the consumed electricity increases also. The biggest chunk of energy is used for tunnel interior luminance. While the tunnels are generally illuminated by sodium vapor lamps, light emitting diodes (LED) based are being increasingly practiced in recently constructed tunnels. In this study, innovations for illumination and lamp control methods for tunnels are examined and the amount of energy savings was theoretically calculated by a simple control method.

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