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C. Tauber, E. Bajraktari, J. Lechleitner, U. Pont, A. Mahdavi:
"Double Skin Facades with Natural Venitlation Capability: A Case Study of Acoustical Enhancement Via Passive and Active (Noise Cancelling) Methods";
Talk: ENVIBUILD 2016 - Buildings and Environment - Energy Performance, Smart Materials and Buildings, Brno, Czech Republic; 2016-09-22 - 2016-09-23; in: "Buildings and Environment - Energy Performance, Smart Materials and Buildings", M. Kalousek et al. (ed.); Eigenverlag mit wissenschaftlichem Lektorar / Peer Review, Envibuild, (2016), 8 pages.

Within an ongoing project, we explore the potential of double skin facades to provide both noise control and natural ventilation capability. Three strategies are investigated: i) Manipulation of sound paths via offset of the openings in the two shells of the façade; ii) Application of absorbing materials in the interstitial space of the façade; iii) Active noise cancelling methods utilizing wave-destructive interference. This contribution describes the overall project but focuses primarily on the active noise cancellation approach. Aside from a comprehensive background research on existing technology, we undertook the design of an actual setting for noise cancellation testing with suitable low-cost components as a proof-of-concept. Results of the experiments are expected to inform subsequent efforts to include noise-cancelling technology in double skin facades.

(no german version) Within an ongoing project, we explore the potential of double skin facades to provide both noise control and natural ventilation capability. Three strategies are investigated: i) Manipulation of sound paths via offset of the openings in the two shells of the façade; ii) Application of absorbing materials in the interstitial space of the façade; iii) Active noise cancelling methods utilizing wave-destructive interference. This contribution describes the overall project but focuses primarily on the active noise cancellation approach. Aside from a comprehensive background research on existing technology, we undertook the design of an actual setting for noise cancellation testing with suitable low-cost components as a proof-of-concept. Results of the experiments are expected to inform subsequent efforts to include noise-cancelling technology in double skin facades.

Double skin facades, noise control, natural ventilation, sound insulation, active noise cancelling.