Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16564
Title: Active noise control : evaluation in ventilation systems
Authors: Au, YYN
Yiu, PCH
Chow, WK 
Issue Date: 1996
Publisher: SAGE Publications
Source: Building services engineering research and technology, 1996, v. 17, no. 4, p. 191-198 How to cite?
Journal: Building services engineering research and technology 
Abstract: Rapid advances in adaptive signal processing are making active noise control products a practicable proposition. One unit available in the industry was chosen in this study to evaluate its application and effectiveness in controlling noise in ventilation systems. Its performance with aerodynamic and static noises was evaluated against the conventional duct lining approach. Experimental results indicate that the system is applicable in air-conditioning systems despite the existence of some constraints that have to be taken care of. It is proposed to use the equipment to supplement the traditional dissipative silencer for noise level control and for the achievement of spectrum balance.
URI: http://hdl.handle.net/10397/16564
ISSN: 0143-6244
EISSN: 1477-0849
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