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Continuous flow, explosives vapor generator and sensor chamber.

Greg E Collins1, Braden C Giordano1, Vasanthi Sivaprakasam1

  • 1Naval Research Laboratory, 4555 Overlook Ave., SW, Washington DC 20375, USA.

The Review of Scientific Instruments
|June 2, 2014
PubMed
Summary
This summary is machine-generated.

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A new liquid injection vapor generator (LIVG) provides stable, continuous vapor output for low vapor pressure explosives like TNT and HTP. This system enables precise control over test atmospheres for instrument calibration and material testing.

Area of Science:

  • Chemical Engineering
  • Materials Science
  • Analytical Chemistry

Background:

  • Accurate vapor generation is crucial for testing explosives and energetic materials.
  • Existing methods often struggle with low vapor pressure compounds and long-term stability.
  • Controlled atmosphere testing requires precise regulation of environmental parameters.

Purpose of the Study:

  • To demonstrate a novel liquid injection vapor generator (LIVG) for low vapor pressure explosives.
  • To characterize the stability and concentration control of the LIVG.
  • To describe a large, controllable test atmosphere chamber for material and instrument testing.

Main Methods:

  • Development and demonstration of a liquid injection vapor generator (LIVG).
  • Utilized low vapor pressure explosives: 2,4,6-trinitrotoluene (TNT) and hexahydro-1,3,5-trinitro-1,3,5-triazine (HTP).

Related Experiment Videos

  • Integration with a large test atmosphere chamber featuring controllable humidity and temperature.

    • Main Results:

    • The LIVG provides continuous, stable vapor output over extended periods (days).
    • Vapor concentration is controllable over three orders of magnitude.
    • The attached chamber allows for uniform atmosphere exposure of instruments and materials with controlled environmental conditions.

    Conclusions:

    • The LIVG is a viable technology for generating stable vapor atmospheres of low vapor pressure explosives.
    • The integrated system offers precise control over test environments for explosives research.
    • This technology facilitates advanced testing of instruments and materials in controlled explosive vapor conditions.