Development and Implementation of Lighting and Shading Control Algorithms in an Airport Building

This paper presents the development and implementation of shading and lighting control schemes in an airport building. The airport has several perimeter zones with large glass facades that receive excessive solar gains throughout the year. Starting from a large southwest zone, illuminance sensors were installed in strategic positions and interior daylight levels were monitored under various sky conditions and shade positions. Analysis of the results allowed derivation of reliable correlations between ceiling and work plane illuminances, which were used to develop control schemes for shading and lighting operation. After successful implementation, the project moved to the next phase, which included all the perimeter zones in the airport. In this phase, only one sensor was installed on the ceiling of each zone, and illuminance levels were predicted using simulation models and validated with a few manual measurements. The developed control schemes were implemented in all perimeter zones of the airport. The study also includes simulation results for the potential energy savings owing to reduced lighting and cooling energy demand.