This article presents a new approach to reduce cooling fan noise of a household refrigerator. A noise reduction strategy employing a perforated panel system is suggested, and the design of the perforated panel system is optimized via experimental analyses. Degradation of cooling performance owing to the introduction of the perforated panel system is addressed and a novel method to guarantee overall acoustic absorption and cooling performance is proposed. Experimental study is conducted to design and evaluate the proposed system as a feasible solution for noise reduction.
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