Title: Application of Active Noise Control for Air-Conditioning System

Year of Publication: Sep - 2015
Page Numbers: 14-21
Authors: Lik Wei Foong , Ka Fei Thang and Wai Meng Chin
Conference Name: The International Conference on Electrical and Electronic Engineering Telecommunication Engineering, and Mechatronics (EEETEM2015)
- Malaysia


The focus of the paper is on evaluating active noise control (ANC) systems for effective noise reduction of the outdoor unit of air-conditioning system. The first problem intended to be solved is that the noise created by the outdoor unit will lead to noisepollution to the environment. The second problem is that the noise emitting from the compressor of airconditioning system varied with respect to time. The third problem is that the chosen ANC system must be able to cope with low and high frequency of the noise signal. The developed system to deal with aforementioned problems is the PC-based ANC system with normalised least-mean-square (NLMS) algorithm. Based on the testing result obtained, the average noise-reduction in actual outdoor unit is 0.9 dBA. The obtained result is encouraging and will form the foundation for future work on the same area.