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Bistable kinetic shades actuated with shape memory alloys: prototype development and daylight performance evaluation
Department of Architecture, Penn State University, University Park, PA, USA.ORCID-id: 0000-0003-1765-1259
Department of Architecture, Penn State University, University Park, PA, USA.ORCID-id: 0000-0002-3826-3987
2022 (Engelska)Ingår i: Smart materials and structures, ISSN 0964-1726, E-ISSN 1361-665X, Vol. 31, nr 3, artikel-id 034001Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Kinetic façade systems can adjust to different environmental conditions, thereby improving daylight performance in buildings. Bistable laminates present large deflections and can maintain their state without continuous energy supply, appealing features for kinetic applications. Nevertheless, these engineered materials have yet to be studied for their potential for improving daylight performance in buildings. This study sought to test the daylight performance of a kinetic bistable screen using a case study approach that combines experimental testing and building performance simulation. This paper details research to design and fabricate the shading screen and the experimental testing of the screens' daylight performance. First, we focus on the design of a holder mechanism, which relies on a string system and shape memory alloys that actuate bistable flaps. Second, we experimentally collect data on daylight performance and compare it to simulation data to validate a daylight model. Results show that the designed bistable screen can increase the hours of adequate daylight throughout the year versus baseline cases, particularly when oriented south and east. The study suggests that bistable kinetic screens can help improve daylight performance in buildings.

Ort, förlag, år, upplaga, sidor
Institute of Physics (IOP), 2022. Vol. 31, nr 3, artikel-id 034001
Nationell ämneskategori
Arkitekturteknik
Forskningsämne
arkitektur, arkitekturteknik
Identifikatorer
URN: urn:nbn:se:umu:diva-212938DOI: 10.1088/1361-665x/ac5014ISI: 000755288600001Scopus ID: 2-s2.0-85125500008OAI: oai:DiVA.org:umu-212938DiVA, id: diva2:1788801
Tillgänglig från: 2023-08-17 Skapad: 2023-08-17 Senast uppdaterad: 2024-02-12Bibliografiskt granskad

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Vazquez, Elena

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Vazquez, ElenaDuarte, Jose P.
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Smart materials and structures
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Totalt: 193 träffar
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