Assessment of lighting system in library room of E11 building, Universitas Negeri Semarang

Lighting is primary factors for visual comfort in the library. The library of Universitas Negeri Semarang had the illuminance of 97 – 672 lux. Based on SNI 6197-2011, the library must have a minimum illuminance of 300 lux. This study aims to assess the quality of lighting, design the layout and lighting system using Dialux evo 9.2 software. This research was expected for the best layout design to support the lighting system to follow SNI 6197-2011. This research used the library of E11 Building, Universitas Negeri Semarang with dimension of 8.6 m x 5.7 m x 3.4 m. This research was carried out by redesigning the layout of the furniture, replacing the type of lamp and armature and calculating the efficiency electricity cost. The results declared that the quality of lighting in the library using TL-D 36W did not achieve SNI 6197-2011. Redesigning of furniture layout and replacing of TL-D with LED tube are solutions to achieve the minimum illuminance. In addition, replacing TL-D with LED Tube can save electricity costs ranging from 64% – 69% per year.

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