Abstract
Generally the mufflers for reducing noise from fan-trays in telecommunication enclosures use sound absorptive materials in their design. Our objective in this work is to design a perforator element muffler that will produce similar acoustical performance without increasing pressure drop in the system as compared to a generally used muffler with sound absorptive material. The work includes parametric studies on the influence of perforated element on noise attenuation and pressure drop. The advantages and disadvantages of reactive perforator element mufflers over the dissipative mufflers in such applications will be studied. The studies include both design and experimental work.
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