A STUDY OF THE CHARACTERISTICS OF THE EXHAUST SYSTEM OF A MARINE GAS-TURBINE INSTALLATION WITH DIFFERENT ACTIVE-GAS NOZZLES

Models of exhaust systems with widely varying design parameters for a marine gas-turbine installation were studied experimentally. The work was done to determine and to select an optimal exhaust system. The experimental unit has a housing cooled by air ejected by the stream of exhaust gases. The results from testing 36 types of the exhaust system employing combinations of three types of active nozzles, two inserts that form the mixing chamber of the ejector, and three types of diffusers are tabulated. It is found that the use of sectional nozzles to feed the active gas into the mixing chamber of the exhaust-system ejector allows broad reduction of the length of the exhaust system with preservation of the characteristics obtained with ordinary nozzles. When the length of the exhaust system is unchanged, sectional nozzles make it possible to reduce the hydraulic resistance of the system and to increase the coefficient of ejection of the cooling air. Sectional nozzles also reduce considerably the noise level of the exhaust gas.

• Authors:
  • Bordovitsyn, YuA
  • Kovalnogov, A F
  • Filin, V A
• Publication Date: 1968

Media Info

• Pagination: p. 28-31
• Serial:
  • Sudostroyeniye (Soviet Shipbuilding) [USSR]
  • Issue Number: 3

Subject/Index Terms

• TRT Terms: Cooling; Diffusers; Emission control systems; Exhaust gases; Exhaust system components; Gas turbines
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00014956
• Record Type: Publication
• Source Agency: Joint Publications Research Service
• Files: TRIS
• Created Date: May 7 1973 12:00AM