Researchers at Lawrence Livermore National Laboratory are developing a high performance filament wound composite firing vessel intended for containment of one time detonation of explosive assemblies that contain toxic metals and gaseous by-products. A 2-meter diameter pressure vessel is being designed for containment of up to 80 lb tnt equivalent explosive without leakage. Due to the complexity of assuring good o-ring sealing ability for explosive generated dynamic pressures in excess of 40,000 psig (280 MPa), multiple seals in-series are used at the vessel openings. To assess and monitor the integrity of these seals during actual detonations within the vessel; miniature pressure and gas sample measurements were made upon the interstitial volume between the o-ring seals. Recent results of this prototype monitoring system indicated that at least two of the seven o-ring seals were required to adequately prevent transient leakage of toxic particulates from test series CVD-2a as evidenced by mass spectrograph quantities of 10% argon vessel pre-charge as a fiducial indicator gas and later confirmed by particulate swipes for metals.
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ASME/JSME 2004 Pressure Vessels and Piping Conference
July 25–29, 2004
San Diego, California, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4680-6
PROCEEDINGS PAPER
Seal Monitoring System for an Explosive Containment Vessel
John W. Pastrnak
John W. Pastrnak
Lawrence Livermore National Laboratory, Livermore, CA
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John W. Pastrnak
Lawrence Livermore National Laboratory, Livermore, CA
Paper No:
PVP2004-2853, pp. 73; 1 page
Published Online:
August 12, 2008
Citation
Pastrnak, JW. "Seal Monitoring System for an Explosive Containment Vessel." Proceedings of the ASME/JSME 2004 Pressure Vessels and Piping Conference. Emerging Technology in Fluids, Structures, and Fluid Structure Interactions: Volume 1, Fluid Dynamics and Fluid Structure Interactions. San Diego, California, USA. July 25–29, 2004. pp. 73. ASME. https://doi.org/10.1115/PVP2004-2853
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