A Model for Designing Climate Adaptive Shading Devices: The Case of Bayrakli Tower

Year 2021, , 1419 - 1431, 01.12.2021

Hande Odaman Kaya Müjde Altın

https://doi.org/10.2339/politeknik.634771

Abstract

Façade is accepted as a determinant component on energy performance of a building, forming the boundaries between inner and outer conditions. With an intention to improve the building energy performance of an existing office building, façade integrated shading devices are examined through the cooling energy consumptions. OpenStudio simulation software is used for calculating heating and cooling electricity consumptions. The ilding simulation model is validated by comparing the simulation results with monthly electricity consumption bills. Shading device requirements are determined by using the building model without shading devices and simulation results are studied together with the sun path diagram analysis results. Hourly and seasonal solar movements are considered as the main parameters affecting the ‘transparency’ and ‘elevation angles’ of the shading devices. As a result of the shading device requirement analysis, climate adaptive shading device (CASD) scenarios are presented for the case building. Consequently, existing shading devices and proposed CASD scenarios are compared and discussed in terms of electricity consumptions and window solar radiation energy parameters. As a result of the comparisons, shading devices that are adaptable to both hourly and seasonal solar movements gave the highest improvement results in terms of decreasing cooling energy consumptions. Also, suggestions are given for developing the best performing façade for further studies.

Keywords

Building energy performance, openstudio simulation, sun-path diagram, climate adaptive shading device, electricity consumption

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