WIDE BAND SOUND SOURCE FOR WADD SONIC FACILITY

Abstract

The following were concluded regarding a wide band sound source: (a) The gas-fuel powered wide ba d acoustic gener or i fea ible and probably practical in the 100 kw (net) po er range. here is no apparent reason why much higher power ratings coul not be considered; (b) The optimum acoustic efficiency is obtained with tandem-type devices operating at high inlet charge density, low fuel energy, low compression ratio so as toAVOID EXCESSIVE EXHAUST TEMPERATURES. The airspring device is much less efficie t but can use high-energy fuels and high compression ratios; (c) The ex aust temper tures c n be lowered by injection of secondary air at low (close-toatmospheric) pressure; and (d) The discussion was based on acetylene but butane or coke-gas or methane would probably be satisfactory. There appears to be no advantage in the use of hydrogen which was disqualified because of its detonation characteristic . (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1960
Accession Number
AD0266342

Entities

Organizations

  • BBN Technologies

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acetylenes
  • Alkynes
  • Charge Density
  • Compression
  • Compression Ratio
  • Detonations
  • Efficiency
  • Energy
  • High Energy
  • Hydrogen

Readers

  • Acoustics.
  • Petroleum Engineering
  • Snow Cover Descriptors for Reptiles and Their Illustrations.