Abstract
Abstract The reduction of energy consumption is a major issue nowadays that should be considered during the design process. High-rise buildings represent a building type with significantly high energy consumption. They serve typically as offices with fully glazed façades, generating considerable energy demand. This study aims to optimize the envelope and the shading systems of a high-rise office building (Middle Europe). For this purpose, multiple façade variants were tested by assessing the thermal and visual comfort, as well as energy demand. The IDA ICE 4.8 building energy simulation program was used for thermal and lighting modeling and to carry out building physics calculations. Results revealed the best performing, optimized façade configuration in terms of comfort and energy efficiency.
Highlights
Given the growing trend of urbanization and population growth, building high-rises is unavoidable and will continue at an increasing rate
The envelope has a significant impact on energy efficiency and the quality of the indoor environment
The results showed that the general design of the building is a major issue to consider for high rises: they can affect energy consumption by up to 32%
Summary
Given the growing trend of urbanization and population growth, building high-rises is unavoidable and will continue at an increasing rate. Typical high-rise buildings are not energy efficient in many aspects of their design [1]. They are seen as buildings with the largest energy consumption. The envelope has a significant impact on energy efficiency and the quality of the indoor environment. It covers up to 95 percent of the building’s exterior surface in a tall building [2]. The gain or loss of energy for a high-rise building depends considerably on the properties of the façade
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