Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside...
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Transcript of Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside...
Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures
National Metrology Institute
Determination of natural constants
Maintenance of the legal units of the SI
Partner in research and industry
Contain gases in designate pathways
Avoiding the spread of an explosion to the outside environment
Explosion pressure highest in spherical enclosures
Maximum Pressure Tests for capsules of small volumes very complex
Goal: Determine behavior of maximum explosion pressure in spherical object of smaller and smaller volume
1: Hollow sphere made of polypropylene2: Ignition electrodes3: Gas supply capillary4: Piezo-electric quartz- pressure sensor5: Polyester resin mantle
repository
Evacuation tank
2 experimental series: 1: Determination of the maximum explosion
pressure for hydrogen-air mixtures (hydrogen concentrations used: 10, 15, 20, 25, 31, 35, 40, 45, 50, 55, and 60%)
2: Determination of the maximum explosion pressure for gas-air mixtures of
propane (4.6%), ethylene (8%), and acetylene (14%)
Measurement interval: 50ms for both series
bar