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Vol.5 No.1 previous AA SP9 (59-60-61-62-63-64-65-66)-67-NT 56 -57

Academic Articles
Regular Paper Vol.5No.2 (2013) p.128 - p.131

Silicon Carbide TRIPLEXTM Fuel Clad and SiC Channel Boxes for Accident Resistance and Durability

Herbert FEINROTH1*
1Ceramic Tubular Products LLC, 15815 Crabbs Branch Way, Rockville, Maryland, 20902 U.S. 301-840-8415, FAX 301-840-1479
The behavior of zircaloy cladding during the loss of coolant accidents at Three Mile Island (TMI) in the US and the Fukushima reactors in Japan was the major cause of overheating and hydrogen release. An alternate cladding material, consisting of multiple layers of silicon carbide fiber matrix composite and silicon carbide high density monolith, (called SiC TRIPLEX cladding) is being developed in the US that offers reliable service during normal reactor operation, and a very large reduction in the exothermic reaction and hydrogen generation that occurred in these accidents. Should another loss of coolant accident occur in a power reactor somewhere in the world, as it surely will someday, use of this cladding would avoid the severe core damage and allow recovery of the plant without total core destruction as occurred at Fukushima and TMI. The status of development and testing of this TRIPLEX cladding is described, as are the plans for future development and testing in preparation for licensing and use. A separate program for replacement of zircaloy channel boxes in BWRs with a unique form of SiC-SiC composite, is also described.
Fuel cladding, hydrogen generation. loss of coolant accident, silicon carbide
Full Paper: PDF EJAM Vol.5No.2 pp.128-131 "Silicon Carbide TRIPLEXTM Fuel Clad and SiC Channel Boxes for Accident Resistance and Durability "

Article Information
Article history:
Received 12 November 2012
Accepted 19 August 2013