N Reactor filter system fission-product retention assessment

Technical Report · Wed Jun 01 00:00:00 EDT 1988

OSTI ID:5684752

Muhlstein, L D; Jeppson, D W; McCormack, J D

Data for the N Reactor High-Efficiency Particulate Air (HEPA) filter and charcoal filter systems have been evaluated to determine appropriate filter efficiencies for elemental iodine, methyl iodide, hydrogen iodide, and particulates. The data supports the following filter efficiencies: particulates - 99.95%, elemental iodine - 99%, methyl iodide - 70%, and hydrogen iodide - 99%. The HEPA filter and charcoal filter system, loading capacities have been determined for both radionuclide and non-radioactive aerosols. The results demonstrated that the capacity of the N Reactor confinement filtration system is more than adequate to retain both radionuclide and non-radioactive aerosols postulated to be released during accident situations without overloading. In addition, potential filter failure due to unacceptable heat loads from collected radionuclides was evaluated. The results show that with an acceptable air flow through the filter system (greater than 850 ft/sup 3//min), the heat load on the filters from deposited radionuclides will not lead to filter failure. 30 refs., 8 figs., 13 tabs.

• Research Organization: Westinghouse Hanford Co., Richland, WA (USA)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 5684752
• Report Number(s): WHC-SP-0233; ON: DE89015991
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
N-REACTOR
AIR FILTERS
AEROSOLS
CONTAINMENT
FISSION PRODUCT RELEASE
HYDROGEN COMPOUNDS
IODIDES
IODINE
NUMERICAL DATA
PARTICULATES
PERFORMANCE TESTING
REACTOR ACCIDENTS
REACTOR SAFETY
SPECIFICATIONS
ACCIDENTS
COLLOIDS
DATA
DISPERSIONS
ELEMENTS
ENRICHED URANIUM REACTORS
EQUIPMENT
FILTERS
GRAPHITE MODERATED REACTORS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
INFORMATION
IODINE COMPOUNDS
LWGR TYPE REACTORS
NONMETALS
PARTICLES
PLUTONIUM PRODUCTION REACTORS
POLLUTION CONTROL EQUIPMENT
POWER REACTORS
PRODUCTION REACTORS
REACTORS
SAFETY
SOLS
TESTING
WATER COOLED REACTORS
220502* - Nuclear Reactor Technology- Environmental Aspects- Radioactive Effluents
220900 - Nuclear Reactor Technology- Reactor Safety
220700 - Nuclear Reactor Technology- Plutonium & Isotope Production Reactors