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energy savings and thermal comfort. 2.1 Concept of façade optimization Different model cases were implemented to gradually upgrade the building envelope. The simulation inputs and operation details are

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The design of the envelope in high-rise office buildings is a task of great importance as it can impact the entire building's energy performance. The study presented in this paper is an extension of a previous work reporting on the optimization of the façade and the shading systems of an east-west facing high-rise office building. This study aims to investigate the façade geometry design factors for other potential orientations, e.g., south, south-east, and south-west directions. The IDA ICE 4.8 complex dynamic building energy simulation program was used to assess thermal and lighting simulations. The optimization results revealed the best-performing façade configurations, appropriate for each orientation examined in terms of thermal comfort, visual comfort, and energy consumption.

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over the world. However, there are only a few well-performing examples. A poorly designed high-rise building envelope can considerably increase the building's appetite for energy. Therefore, high-rise building façade optimization is a major stake to

Open access