Evaluation of Electrostatic Probe Technique for Detection of Particles Emitted during Turbine Engine Distress

Abstract

Electrostatic probes were inserted into the turbine exhaust of a J57 gas turbine engine in an effort to detect particles generated by artifically induced distresses of certain gas path components, thereby serving as an indication of incipient component failure. The two types of distresses induced were simulations of turbine rub and combustor burn, each of which is often accompanied by particle release into the gas flow. Results of this evaluation indicate that probe output signals due to particle impact with the probe could not be reliably detected above the baseline noise level for the distresses simulation in this effort.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1974
Accession Number
ADA008186

Entities

People

  • Donald A. Mitchell
  • Mario Soliz

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Analyzers
  • Charged Particles
  • Combustors
  • Detection
  • Electrostatic Probes
  • Engines
  • Flow
  • Gas Flow
  • Gas Turbines
  • Heat Engines
  • Pulse Analyzers
  • Simulations
  • Test And Evaluation
  • Test Equipment
  • Turbines
  • Turbojet Engines

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