Solar control devices; balance between thermal performance and daylight

The concern to achieve energy efficient performance during the activation of natural ventilation mode inside an office building in New Delhi, India addresses the need of study. This paper is based on a MA research project and describes the relationship observed in coordinating thermal performance and illuminance levels achieved with different depths and designs of shading devices. Research results from computer simulations carried out in A-TAS to observe the effect on resultant internal air temperature and the amount of daylight received on the working plane through the software RADIANCE are presented. Efficient solar control devices for different orientations which would protect the aperture from direct solar radiation, prevent glare, optimize daylight and enhance passive cooling through reduced internal air temperature are proposed for the brief of a bioclimatic office building located in New Delhi.