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Abstract |
The Low Frequency Radiator for
Processes Intensification
Y.Borisov, M.A.Mironov (Theoretical
Laboratory, N.N.Andreev Acoustics Institute, Moscow, Russia)
e-mail:
mironov@akin.ru
The
piston radiator with frequency 25 - 50 Hz for acoustic fields generation in
gases with levels 110 - 140 dB in tubes and closed volumes is designed. The
efficiency of the radiator exceeds 50 %. The high efficiency is reached due to
elimination of piston sealing rings that determined the basic losses in a
conventional design. The acoustic choking of a gap between the piston and a
cylinder is provided with inertia and viscosity of a working gas in a gap. The
role of non-linear effects in operation of the radiator, capabilities of
extremal levels achievement and control of a sound field structure is
discussed.
Section
: 11