International Journal of Engineering Research

AL-Sair Ragab Mohamed ¹, Hoda Soliman Siddiq ², Mohamed Mahmoud Kamel Mahmoud ²

Affiliations
1 Electronics and Communications Department, El-Azhar University, EG
2 National Center for Housing& Building Research, IN

Abstract

A proposed model is set up for a Noise-cancelling of air conditioning by means of active noise control. Essentially, this involves using a microphone, placed near the fan, and an electronic circuitry which generates an "anti-noise" sound wave with the opposite polarity of the sound wave of the microphone. This results in destructive interference, which cancels out the noise within the enclosed volume of the fan. The best sat is factory result was obtained at 2000 Hz equal 11 dB.

Keywords

Active Noise, Noise Cancelling, Electronic System, Sound Pressure Level.

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