3D-ETFE: Development and evaluation of a new printed and spatially transformed foil improving shading, light quality, thermal comfort and energy demand for membrane cushion structures. (September 2017)

• Record Type: Journal Article
• Authors: Cremers, Jan; Marx, Hannes
• Is Part Of: Energy procedia. Volume 122(2017)
• Page Start: 115
• Page End: 120
• Publication Date: 2017-09
• Subjects: "ETFE -- membrane structure -- solar shading -- thermal comfort -- building simulation -- solar energy; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2017.07.306
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: Standard membrane structures using ETFE foils have a very high solar transmission (a single layer of typical transparent ETFE foil ≈ 93%). Regarding façade and roof applications this can result in serious problems with overheating and also cause a high degree of thermal discomfort and high cooling loads. The presented new shading approach is inspired by the widely used architectural idea of the shed roof (saw-tooth roof). Different geometry variants of a new spatial transformed foil have been manufactured in lab scale with the aim to quantify the cooling energy saving potential and the thermal comfort compared to a conventional system by using dynamic thermal simulations.