Investigating the Effect of High-Rise Buildings’ Mass Geometry on Energy Efficiency within the Climatic Variation of Egypt

Energy conservation is recently the most important issue all over world, including in Egypt. Recently, built environment of Egypt has experienced a dramatic change its buildings’ typology, with more interest constructing high-rise buildings. This turn creates high demand for energy, as buildings are considered to be one energy-consuming types wide variety climatic conditions, seven different inhabited regions, and further which uninhabited. Therefore, integrating energy efficiency building major design factor early stages such type important. article concerned investigating effect geometrical shape on building’s consumption within regions Four shapes (square, circular, rectangular, ellipse) examined. The long axe models oriented north (“the optimum orientation regions”), window-to-wall ratio (WWR) 30%. performance these studied cities representing Egyptian using simulation software, DesignBuilder, EnergyPlus tool. Study findings revealed that adjusting geometric form significantly affects thermal comfort variation. compact shape, was suitable four out seven. ellipse found mass geometry two other while square effective only region. results this research indicate designers should not use rectangular anywhere across