A SHOCK TUBE STUDY OF THE IGNITION LIMIT OF BORON PARTICLES.

Abstract

A shock tube study was conducted to determine the ignition limit of clouds of boron particles. The ignition limit is an experimentally determined curve, plotted on temperature-pressure coordinates, separating the ignition and no ignition zones. A 3-inch inside diameter constant area shock tube employing a helium/air gas system was used for igniting the boron particles. The particles were ignited in the high temperature region behind the reflected shock wave. The boron samples used were 30-50 micron diameter agglomerates (1-2 micron primary particles) and 0.015 micron diameter particles. Ignition delay time of 0.015 micron particles was also obtained. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1968
Accession Number
AD0836803

Entities

People

  • Robert T. Uda

Organizations

  • Air Force Institute of Technology

Tags

DTIC Thesaurus Topics

  • Agglomerates (Rock)
  • Diameters
  • High Temperature
  • Ignition
  • Ignition Lag
  • Particles
  • Shock
  • Shock Tubes
  • Shock Waves
  • Tubes
  • Waves

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Combustion Dynamics and Shock Wave Physics.
  • Combustion science or combustion engineering.