Abstract
Recently, kinetic facade has become a popular choice for building increasing complex and varied needs associated with user comfort. The aim was to optimize the façade designs of a hospital, located in Amman, to improve daylighting quality and overcome glare issue. Two components comprise the research: questionnaire and simulation. The questionnaire section asked to assess current daylight conditions in the facade design of the hospital's basic case. Using the Grasshopper and Ladybug plugins for Rhino software, parametric daylight simulation was carried out. Three distinct light control kinetic façade parametric designs were applied to the façade of the hospital. Results showed that design option three has the better performance compare to other designs in accordance to effectiveness of parametric design and optimization in achieving performance goals. The daylighting illuminance in design three was between 300-3000 lux. Annual Sunlight Exposure (ASE), Spatial Daylight Autonomy (sDA) and Useful Daylight Illuminance (UDI) were 10%, 76.57% and 60.2%, respectively. The Glare Autonomy (GA) was ranging between 61.64-89.76% and Discomfort Glare likelihood (DGP) was mostly <0.35, corresponding to imperceptible glare. The findings potentially have advantageous repercussions for suggestions made in the future regarding green design methods in hospital buildings.
