EXPANSION OF EXPLOSIVE MIXTURES,

Abstract

Following the discussion of the characteristics of flammable fuel vapour/air mixtures, e.g. explosion limits and explosion points, as well as their correlation to the vapour pressure and boiling curves determining the production of explosive mixtures, the mixture propagation in tanks by diffusion, conditions necessary for the existence of convection flow and finally the turbulent mixing processes are described. From measurements of the mass flow and of concentrations of mixtures leaving the fuel tank, it is possible to determine the losses due to tank respiration and fuel transfer which occur during normal storage, together with transloading. Under usual operating conditions, the total losses amount to about 1.5 to 3% of the transloaded fuel. Finally the expansion of mixtures in the free atmosphere when the air is calm and its ground velocity small, and also the decrease of concentration in a free jet are discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1969
Accession Number
AD0697488

Entities

People

  • G. Schoen

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Atmospheres
  • Convection
  • Diffusion
  • Explosions
  • Explosives
  • Flow
  • Fuel Tanks
  • Germany
  • Mass
  • Mass Flow
  • Measurement
  • Mixing
  • Mixtures
  • Physical Properties
  • Turbulent Mixing
  • West Germany

Readers

  • Combustion science or combustion engineering.
  • Environmental Remediation and Restoration.
  • Marine Hydrodynamics