Optimization of skylight composition for cooling and lighting energy efficiency (Case Study: G-building ITATS)

Dian P.E. Laksmiyanti, Randy P. Salisnanda

Atrium, Cooling Energy, Daylight, Energy Efficient, Middle-rise, Tropics.

The increasing concern on sustainable and environmentally friendly design over the past three decades has encouraged architects to look back at their own tradition in creating built environments. They realize that building should bear connection with place. In the tropics, buildings should respond to the climate. High solar radiation and temperature are particularly critical from the point of view of architecture design. Multi-storey buildings are especially vurnarable as far as heat is concerned. Greater area of the facade is exposed and will be the main source of heat input, which in turns will have an impact on energy use and comfort. Careful considerations on the design of envelope and roof are proved to be of advantage in terms of energy performance. This research aims to find the optimum composition of skylight and opaque roof for atrium of middle-rise wide span buildings, especially in relation to cooling energy and daylighting. Sample of middle-rise office buildings in Surabaya were taken random. Simulation was conducted to predict energy performance for cooling energy and daylight distribution of the building. Energy performance of the buildings were found to bear some relations to the percentage of fenestration roof in atrium.

10.22161/ijaers.5.11.37