OPTIMIZATION OF ASYMMETRIC BILATERAL COMPLEX FENESTRATION SYSTEMS IN STATE ELEMENTARY SCHOOL CLASSROOMS IN INDONESIA

Abstrak

This study aims to enhance the daylighting performance of an asymmetric bilateral complex fenestration system (CFS) in a hypothetical classroom located in two Indonesian tropical cities, namely Bandung and Lhokseumawe, which are located slightly south and north of the equator, respectively. Bandung is a mountainous tropical city, whereas Lhokseumawe is a coastal city. Optimization is conducted for all four cardinal orientations. The classroom's daylight performance is assessed using aUDI250-750lx, aUDI100-3000lx, sDA300/50%, and ASE1000,250 metrics. The baseline conditions reveal inadequate daylighting performance with a low aUDI100-3000lx reading (below 80%) and an unsatisfactory ASE1000,250 value (above 20%). To meet the good daylighting performance standards, this study utilizes a computational simulation method for annual daylight simulation. Furthermore, the RBFOpt algorithm was used through Opossum to conduct optimization. According to the optimization results, the integration of CFS into the building's envelope results in improved daylight performance in both locations.