Feasibility of Electrostatic Probes as an Ion and Pollution Sensor in a Jet Exhaust.

Abstract

The purpose of this thesis was to experimentally investigate the feasibility of electrostatic probes in determining the ionic number density correlation with pollution concentration in the subsonic J-57 jet engine exhaust gases. A cylindrical electrostatic probe inserted normal to the gas flow was used for this experiment. The ionic number density provides an indication of a jet engines over-all efficiency and specifically the efficiency in the combustion chamber region. The pollution concentration is also indicative of an engine's overall efficiency. A major contributor to atmospheric contamination or pollution was measured by an off-line grab sampling technique and the application of basic chemical methods. The primary exhaust gas pollutant evaluated was oxide of nitrogen (NO2), which was shown to correlate with thrust (expected) and, under certain conditions, D.C. potential.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1971
Accession Number
ADA038529

Entities

People

  • Robert Alan Vopalensky

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Pollution
  • Aircrafts
  • Combustion
  • Detectors
  • Dielectric Gases
  • Electrostatic Probes
  • Exhaust Gases
  • Jet Aircraft
  • Jet Engine Exhaust
  • Jet Engines
  • Laboratory Procedures
  • Measurement
  • Nitrogen Oxides
  • Turbine Blades
  • Turbines
  • Turbojet Engines

Fields of Study

  • Environmental science

Readers

  • Internal Combustion Engine (ICE) Technology.
  • Plasma Physics.