The impacts of dynamic façade shading typologies on building energy performance and occupant’s multi-comfort

Elzeyadi, Ihab

doi:10.1080/00038628.2017.1337558

Cited by 40 publications

(18 citation statements)

References 27 publications

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“…• Most of the metrics were proposed based on empirical studies in office-like mock ups in a specific climate, thus they need more validation case studies to be generalized in other climates and building types. • As supported by [139], different shading systems such as roller shades and venetian blinds were tested to identify glare using DGI and DGP, in which results could not show any relation to observations. Therefore, the different characteristics of daylighting systems as one of the main design techniques to control daylight and visual discomfort are not fully considered during glare evaluation and on the other side, there is no dynamic glare metrics that can reflect the dynamic behaviour of a shading system.…”

Section: Discussion On the Findingsmentioning

confidence: 99%

Daylight in Buildings and Visual Comfort Evaluation: the Advantages and Limitations

Tabadkani

Roetzel

et al. 2021

Journal of Daylighting

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Exposure to daylight significantly affects the psychological well-being of occupants by diminishing headaches, eye tensions, or stress. Daylight penetration is a matter of collaboration between building façade and perimeter zones that can be controlled through façade design features. This study reviews available daylighting systems to block or redirect natural light inside the space and their overall performance. Adaptation found to be the main key feature of daylighting systems to improve their effectiveness in indoor environments. As the main implication of such systems on the visual comfort performance of occupants, a list of quantitative indices is studied based on their mathematical equation to outline their advantages and limitations. Findings revealed a lack of agreement on acceptable indoor illuminance thresholds for most of the indices and the absence of a reliable glare index in presence of sun within the view field of the occupant. Similarly, many green building certifications propose a specific criterion to assess view out but remained a challenge for future studies.

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Section: Discussion On the Findingsmentioning

confidence: 99%

Daylight in Buildings and Visual Comfort Evaluation: the Advantages and Limitations

Tabadkani

Roetzel

et al. 2021

Journal of Daylighting

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“…The importance of occupant control is shown to be rooted in the occupants' ability to achieve their desired conditions. 9 [25] Energy savings, reduction in thermal solar heat gains, useful daylight autonomy, glare threshold and visual comfort, glare threshold incidence The study presents innovative solutions for design of transparent building envelopes, however, there is no data about AF system assessment.…”

Section: [11]mentioning

confidence: 99%

Current trends and future challenges in the performance assessment of adaptive façade systems

Attia

Bilir

Safy

et al. 2018

Energy and Buildings

143

108

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a b s t r a c tDuring the last decades, a great number of innovative building envelope materials and façade components have been developed. The majority of these technologies promise significant improvements in energy efficiency and occupant's comfort, with products that are easily available in the market. However, it remains a challenge to assess the performance of such facades, leading to difficulties for efficient design, operation, and maintenance. As a consequence, the market adoption of adaptive facades is not realizing its full potential, resulting in missed opportunities for energy savings and improved occupant satisfaction. In this study, the current trends of adaptive facades are investigated, with particular emphasis on their performance assessment. Based on extensive literature review, the gaps in assessment of adaptive facades are determined and a novel object-based façade characterization and classification framework is proposed. Furthermore, a generic stakeholder map and process map are presented to explain current adaptive façade delivery practices. In addition, the findings of interviews and two focus group discussions with experts and specialists are presented to elucidate their expert opinions, leading to a validated framework of key performance indicators. As results of this paper, the gaps related to adaptive façade systems' assessment are identified with respect to the different actors and stakeholders, and insights and perspectives on current trends and future challenges of adaptive façade system assessment are provided.

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“…Mahmoud and Elghazi investigated daylight performance use two kinds of movement (translation and rotation) with the hexagonal pattern by parametric digital modelling [5], while Pesenti explored folding patterns, inspired by Japanese paper origami, to understand the potential of dynamic patterns' morphology for application in dynamic façade [6]. Similarly, Elzeyadi measured the actual performance of the prototypes in full-scale and compared six main typologies for energy saving and visual comfort [7]. Likewise, Panopoulos investigated the available smart façade to the existing office building in perspective of new material and technology.…”

Section: Dynamic Façadementioning

confidence: 99%

The Impact of Dynamic Facade Typology on Daylight and Energy Performance: Comparing Rotation and Folding Motion

Xuepeng,

TABLADA,

Lijun

et al. 2020

Preprint

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The impacts of dynamic façade shading typologies on building energy performance and occupant’s multi-comfort

Cited by 40 publications

References 27 publications

Daylight in Buildings and Visual Comfort Evaluation: the Advantages and Limitations

Daylight in Buildings and Visual Comfort Evaluation: the Advantages and Limitations

Current trends and future challenges in the performance assessment of adaptive façade systems

The Impact of Dynamic Facade Typology on Daylight and Energy Performance: Comparing Rotation and Folding Motion

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