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Propeller Noise Reduction by Means of Unsymmetrical Blade-spacing

✍ Scribed by W. Dobrzynski


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
523 KB
Volume
163
Category
Article
ISSN
0022-460X

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Noise reduction of a miniature fan by us
✍ G.G. Tseo πŸ“‚ Article πŸ“… 1974 πŸ› Elsevier Science 🌐 English βš– 272 KB

The method of noise reduction by providing porous surface [1, 2] on the fan blade was experimentally investigated on a miniature axial-flow fan that is popularly used in cooling for a business machine. Different porous materials such as foam, fiberglass and felt metal were evaluated on the fan. Narr