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Original Articles

Design of haul road lighting system. Part I: design based on optimal energy considerations

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Pages 165-174 | Published online: 03 Apr 2009
 

Abstract

Electrical energy consumption is a major cost component of haul road lighting. Haul road lighting depends on many parameters such as type and wattage of sources, mounting height and tilt angle of light fixtures. In this study a computer model has been developed for optimum energy consumption of any haul road lighting system. Using the program, illumination design was studied for a stretch of 800 m long haul road. Nine different types of light sources were considered for mounting heights of 12 and 16 m. High-pressure sodium vapour (HPSV) lamps of 100 W proved to be energy efficient at a 12 m height whereas at 16 m height, energy consumption was minimum for 150 W HPSV lamps. Thus the developed computer program proved to be successful in evaluating the performance of lighting designs from the point of view of energy consumption.

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