Gas retention and release behavior in Hanford double-shell waste tanks

Technical Report · Thu May 01 04:00:00 EDT 1997

DOI:https://doi.org/10.2172/527909· OSTI ID:527909

Meyer, P A; Brewster, M E; Bryan, S A ^[1]

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1. and others

This report describes the current understanding of flammable gas retention and release in Hanford double-shell waste tanks AN-103, AN-104, AN-105, AW-101, SY-101, and SY-103. This knowledge is based on analyses, experimental results, and observations of tank behavior. The applicable data available from the void fraction instrument, retained gas sampler, ball rheometer, tank characterization, and field monitoring are summarized. Retained gas volumes and void fractions are updated with these new data. Using the retained gas compositions from the retained gas sampler, peak dome pressures during a gas burn are calculated as a function of the fraction of retained gas hypothetically released instantaneously into the tank head space. Models and criteria are given for gas generation, initiation of buoyant displacement, and resulting gas release; and predictions are compared with observed tank behavior.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 527909
• Report Number(s): PNNL--11536-Rev.1; ON: DE97053275
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
HANFORD RESERVATION
HIGH-LEVEL RADIOACTIVE WASTES
MONITORING
RADIOACTIVE WASTE MANAGEMENT
REMEDIAL ACTION
SAMPLING
TANKS
UNDERGROUND STORAGE
VAPORS