behavior of the maximum explosion pressure of gas-air mixtures in small free volumes inside...
TRANSCRIPT
![Page 1: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/1.jpg)
Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures
![Page 2: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/2.jpg)
National Metrology Institute
Determination of natural constants
Maintenance of the legal units of the SI
Partner in research and industry
![Page 3: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/3.jpg)
Contain gases in designate pathways
Avoiding the spread of an explosion to the outside environment
![Page 4: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/4.jpg)
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
![Page 5: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/5.jpg)
1: Hollow sphere made of polypropylene2: Ignition electrodes3: Gas supply capillary4: Piezo-electric quartz- pressure sensor5: Polyester resin mantle
![Page 6: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/6.jpg)
![Page 7: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/7.jpg)
![Page 8: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/8.jpg)
![Page 9: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/9.jpg)
repository
Evacuation tank
![Page 10: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/10.jpg)
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
![Page 11: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/11.jpg)
bar
![Page 12: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/12.jpg)
![Page 13: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/13.jpg)
![Page 14: Behavior of the Maximum Explosion Pressure of Gas-Air Mixtures in Small Free Volumes Inside Spherical Enclosures](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ef45503460f94c07048/html5/thumbnails/14.jpg)