ETFE Membrane Facade Double Skin Solar Collector is an innovative architectural solution that combines advanced material technology with sustainable design principles to create energy-efficient building envelopes. This sophisticated system utilizes Ethylene Tetrafluoroethylene (ETFE) membrane cushions, maintained under constant air pressure of 300 Pa, arranged in a diagonal pattern within a double-skin facade configuration. The system's primary components consist of transparent ETFE cushions that are 3 meters wide and can extend up to 62 meters in length, secured to a secondary steel structure using specialized aluminum extrusion clamps. This cutting-edge facade technology offers remarkable benefits, including a 30% reduction in energy consumption through its solar collector functionality, which captures and recirculates hot air throughout the building. The system's exceptional properties include self-cleaning capabilities due to a specialized chemical additive in the ETFE membrane that facilitates natural cleaning through rainfall, superior acoustic protection providing up to 57 dB noise reduction when combined with triple glazing, and an impressive 50-year material lifespan. The facade's innovative design, recognized with a Bronze A' Design Award in the Architecture, Building and Structure Design category, demonstrates exceptional architectural ingenuity through its ability to overcome complex engineering challenges, particularly in corner transitions where specialized aluminum extrusion details were developed to accommodate diagonal cushion placement with 1000mm radius turns. The system's lightweight nature, weighing merely 1% of comparable glass installations, combined with its high transparency and thermal efficiency, represents a significant advancement in sustainable building envelope technology.
sustainable architecture, energy efficiency, membrane facade, solar collection, building envelope, ETFE technology
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