1965-02-01

Donasonic - Turbine Tailored Silencing 650169

A brief review is made of the sources and causes of gas turbine noise. Intake noise characteristics of different types of small gas turbines are discussed.
Sound pressure level criteria is recommended for the protection of operating personnel and for avoiding neighborhood noise complaints.
The paper summarizes the development of the Donasonic intake silencer and its possible integration with air cleaning techniques - resulting in a significant space and weight saving. Conventional methods of controlling intake noise are also discussed.
Combined air cleaner-silencer induction systems, stressing compact size and light weight, are described including test data from actual applications.

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