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Designing energy-efficient and visually-thermally comfortable shading systems for office buildings in a cooling-dominant climate

Energy Reports, vol. 10, pp. 3863–3881

Abstract

Windows and their control elements, including shading systems, are among the most critical building components affecting both energy consumption and occupant comfort. With the increasing demand for full-glazed facades, designers and researchers are actively devising advanced control strategies to address the challenges posed by excessive sunlight penetration and heat transfer. These strategies aim to harmonize the benefits of natural light with the need for comfortable indoor environments and energy consumption reduction. This study investigates the impact of external shading configurations for an office room in Tehran, categorized as group B in the Köppen climate classification, to reduce total building energy consumption and improve occupant thermal and visual comforts. The shading parameters include shading angle, shading depth, and the number of shading slats. More specifically, this study analyzes and compares two design configurations for the considered office room. The first configuration consists of a single southern window with horizontal shading, whereas the second configuration consists of two windows on the south and west, one being horizontal shading on the southern side and the other being vertical shading on the western side. There are a total of 1330 models investigated from which 20 models are selected as the most suitable solutions. Finally, this paper examines the effect of each design parameter on the overall performance of each configuration in terms of energy efficiency and visual-thermal comfort.

Authors 6

  1. University of Tehran

    Affiliation as printed

    School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran

  2. Shahid Beheshti University

    Affiliation as printed

    Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran

  3. University of Tehran

    Affiliation as printed

    School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran

  4. RWTH Aachen University

    Affiliation as printed

    Institute for Occupational, Social, and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany

  5. University of Technology Sydney

    Affiliation as printed

    Faculty of Engineering & IT, University of Technology Sydney, Ultimo, Australia

  6. Pooya Sareh corresponding

    University of Liverpool · Newcastle University · Universidad Politécnica de Madrid

    Affiliation as printed

    Creative Design Engineering Lab (Cdel), School of Engineering, University of Liverpool, Liverpool, United Kingdom

    Escuela Técnica Superior de Ingeniería y Diseño Industrial, Universidad Politécnica de Madrid (UPM), Madrid, Spain

    School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom

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References 72