REDUCTION OF NOISE IN THE ENGINE ROOM BY SCREENING THE ENGINE'S GAS TURBOCHARGER

The noise emanating from the gas turbochargers of engines equipped with fixed intake-silencers exceeds by 10-15 dB the mechanical noise emitted by these engines in the frequency range 1,000-8,000 Hz. When air-intake noise exceeds engine noise, the acoustic field calculation may be erroneous. It must be calculated on the basis of the two direct noise sources: the main engine and the air-intake installation. It is shown that, in addition to fixed silencers, screening can reduce the noise level in the turbocharger region by 10-15 dB and in the engine room as a whole by 3-5 dB. Formulae for calculation of screening efficiency are given. Order from BSRA as No. 49,694.

  • Corporate Authors:

    Mezhdunarodnaya Kniga

    Smolenskaya Sennaya Pl 32/34
    Moscow G-200,   USSR 
  • Authors:
    • Gomzikov, E A
  • Publication Date: 1977-4

Language

  • Russian

Media Info

  • Features: References;
  • Pagination: p. 20
  • Serial:
    • Sudostroenie
    • Issue Number: 4
    • Publisher: Mezhdunarodanya Kniga

Subject/Index Terms

Filing Info

  • Accession Number: 00195359
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Jul 31 1979 12:00AM