Potential VOC Deflagrations in a Vented TRU Drum

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The objective of the analysis is to examine the potential for lid ejection from a vented transuranic (TRU) waste drum due to pressure buildup caused by the deflagration of hydrogen and volatile organic compounds (VOCs) inside the drum. In this analysis, the AICC pressure for a stoichiometric mixture of VOCs is calculated and then compared against the experimental peak pressure of stoichiometric combustion of propane and hexane in a combustion chamber. The experimental peak pressures of propane and hexane are about 12 percent lower than the calculated AICC pressure. Additional losses in the drum are calculated due to venting of ... continued below

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Mukesh, GUPTA April 7, 2005.

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The objective of the analysis is to examine the potential for lid ejection from a vented transuranic (TRU) waste drum due to pressure buildup caused by the deflagration of hydrogen and volatile organic compounds (VOCs) inside the drum. In this analysis, the AICC pressure for a stoichiometric mixture of VOCs is calculated and then compared against the experimental peak pressure of stoichiometric combustion of propane and hexane in a combustion chamber. The experimental peak pressures of propane and hexane are about 12 percent lower than the calculated AICC pressure. Additional losses in the drum are calculated due to venting of the gases, drum bulging, waste compaction, and heat losses from the presence of waste in the drum. After accounting for these losses, the final pressures are compared to the minimum observed pressure that ejects the lid from a TRU drum. The ejection pressure of 105 psig is derived from data that was recorded for a series of tests where hydrogen-air mixtures were ignited inside sealed TRU drums. Since the calculated pressures are below the minimum lid ejection pressure, none of the VOCs and the hydrogen (up to 4 percent) mixtures present in the TRU waste drum is expected to cause lid ejection if ignited. The analysis of potential VOC deflagrations in a vented TRU drum can be applied across the DOE-Complex since TRU waste is stored in drums throughout the complex.

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  • EFCOG SAWG 2005 Annual Workshop, Santa Fe, NM (US), 04/30/2005--05/05/2005

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  • Report No.: WSRC-MS-2005-00057
  • Grant Number: AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 839493
  • Archival Resource Key: ark:/67531/metadc788841

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  • April 7, 2005

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  • Dec. 3, 2015, 9:30 a.m.

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  • May 5, 2016, 5:49 p.m.

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Mukesh, GUPTA. Potential VOC Deflagrations in a Vented TRU Drum, article, April 7, 2005; South Carolina. (digital.library.unt.edu/ark:/67531/metadc788841/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.