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C. Tauber, E. Bajraktari, J. Lechleitner, U. Pont, A. Mahdavi:
"Double Skin Facades with Natural Ventilation Capability: A Case Study of Acoustical Enhancement via Passive and Active (Noise Cancelling) Methods";
Applied Mechanics and Materials, 861 (2017), 537 - 544.

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 english 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.

http://dx.doi.org/10.4028/www.scientific.net/AMM.861.537

Project Head Ardeshir Mahdavi:
Innovative Fassaden für natürliche Raumlüftung und optimierten Schallschutz ¿ LEIse_WAND