Double Skin Facades with Natural Ventilation Capability: A Case Study of Acoustical Enhancement via Passive and Active (Noise Cancelling) Methods

Abstract

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.

The Effect of Music Tempo and Volume on Acoustic Perceptions under the Noise Environment

“…Moreover, environmental noise causes mental stress and loss of concentration, which can adversely affect workers' performance [15]. Thus, some noise control engineering approaches for reducing noise have been developed [16][17][18][19]. However, these noise control engineering methods were usually not mobile or economically viable.…”