Leakage and Power Loss Test Results for Competing Turbine Engine Seals

Abstract

Advanced brush and finger seal technologies offer reduced leakage rates over conventional labyrinth seals used in gas turbine engines. To address engine manufacturers' concerns about the heat generation and power loss from these contacting seals, brush, finger, and labyrinth seals were tested in the NASA High Speed, High Temperature Turbine Seal Test Rig. Leakage and power loss test results are compared for these competing seals for operating conditions up to 922 K (1200 degrees F) inlet air temperature, 517 KPa (75 psid) across the seal, and surface velocities up to 366 m/s (1200 ft/s).

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2004
Accession Number
ADA426759

Entities

People

  • Irebert R. Delgado
  • Margaret P. Proctor

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Temperature
  • Body Weight
  • Climate Change
  • Engines
  • Gas Turbines
  • High Temperature
  • Jet Engines
  • Labyrinth Seals
  • Measurement
  • Mechanical Engineering
  • Military Research
  • Performance Tests
  • Pressure Distribution
  • Pressure Measurement
  • Static Tests
  • Thermal Expansion
  • Turbines

Readers

  • Hydraulic Engineering.
  • Integrated Circuit Design and Technology.
  • Internal Combustion Engine (ICE) Technology.