Continuous flow, explosives vapor generator and sensor chamber

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).
• 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.