Spent Fuel Heatup Following Loss of Water during Storage

Benjamin, A.S.; McCloskey, D.J.

doi:10.13182/nt80-a32490

Cited by 14 publications

(10 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, in steam there is a problem of hydrogen absorption in the cladding material, which degrades the cladding properties [11,12]. Oxidation in steam occurs during DBAs such as LOCA [13], oxidation in air or steam/air mixture occurs during more severe accidents with air ingress such as accident in spent pool with a failed heat removal system [3].…”

Section: Methodsmentioning

confidence: 99%

“…As for the uncoated claddings, the protective layer can break, which leads to the acceleration of oxidation. As oxygen is consumed by the oxidation reaction, partial pressure of nitrogen increases, which causes reaction between nitrogen and the cladding and formation of thin ZrN layer (3).…”

Section: Microstructurementioning

confidence: 99%

“…The objectives of these new cladding materials include prevention of a degradation and failure of claddings due to excessive oxidation during postulated DBAs such as Loss of Coolant Accident (LOCA) or more severe ones with air ingress. Indeed, when there is an accident with air ingress in a reactor core, a spent fuel pool [3] or in transportation cask, cladding strongly oxidizes in air or steam/air mixture. This causes release of heat as well as acceleration of cladding degradation and progression of accident scenario.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High-Temperature Steam and Air Oxidation of Chromium-Coated Optimized Zirlo™

Bourdon

Ševeček

Krejčí

et al. 2019

APP

View full text Add to dashboard Cite

The presented study focuses on Cr-coated cladding material and its oxidation performance in high-temperature steam and air. As the substrate material, Optimized ZIRLO™ was used which was coated by chromium using unbalanced magnetron sputtering. The experimental methods are described and the presented results focus mainly on weight gain and oxidation kinetic evaluation. The experiments were carried out in the high-temperature range between 1000 and 1300 °C. The test conditions focus mainly on the air oxidation tests that are relevant for some of severe accidents with air ingress and have not yet been studied in detail and are not available in literature. These data are supported with steam oxidation data to directly compare the kinetics in two different oxidizing environments.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Microstructurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High-Temperature Steam and Air Oxidation of Chromium-Coated Optimized Zirlo™

Bourdon

Ševeček

Krejčí

et al. 2019

APP

View full text Add to dashboard Cite

show abstract

“…The safety of such configurations with spent fuel assemblies has been studied and has included consideration of a hypothetical 101'1probability accident involving drainage of the water fro1n the pool. (91)(92)(93) The likelihood of a severe pool drainage incident has been judged to be extremely low. (91) If certain design modifications are made, automatic coolability can be ensured for most accidents involving pool drainage; overheating of spent fuel can also be averted by other techniques (e.g., use of an emergency water spray).…”

Section: Dissimilar Metal Contacts(s)mentioning

confidence: 99%

Status of rod consolidation, 1988

Bailey¹

1989

View full text Add to dashboard Cite

“…They are used for the interim storage of spent fuel until their decay heat and activity level is low enough to enable a safe transport to an external storage. The coolant used in fuel SFPs is desalinated water (Benjamin et al, 1979). The FAs are stored vertically in so-called storage racks.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the influence of cross-overflow on the decay heat removal from spent fuel pools

Zedler

Schuster

Lippmann

et al. 2019

Exp. Comput. Multiph. Flow

View full text Add to dashboard Cite

In the case of failure of cooling systems or structures in spent fuel pools (SFP), the decay heat removal must be guaranteed to prevent a fission product release. The heat, generated by the fuel assemblies (FA), causes a water level decrease, when heat removal systems fail. In this case, the cooling of the inventory is no longer guaranteed. If limit temperatures are exceeded, an irreversible damaging of the fuel assemblies is possible. To predict the decay heat removal for different accident scenarios, the project SINABEL was initiated. Within this project, the test facility ALADIN was erected in 2016 at TU Dresden to analyze cladding temperature profiles in beyond design accident scenarios. An additional overflow channel was equipped to the ALADIN test facility in order to investigate the influence of air cross overflow on the decay heat removal for different rod powers and overflow velocities in SFP boil-off and air cooling scenarios. To provide an overview of the application field of the test facility, all planned experiments are briefly presented. The results of the first experiments indicate an influence of the overflow on the surface temperatures of the FAs. Finally, conclusions for the safety of SFPs are drawn.

show abstract

Spent Fuel Heatup Following Loss of Water during Storage

Cited by 14 publications

References 6 publications

High-Temperature Steam and Air Oxidation of Chromium-Coated Optimized Zirlo™

High-Temperature Steam and Air Oxidation of Chromium-Coated Optimized Zirlo™

Status of rod consolidation, 1988

Experimental study of the influence of cross-overflow on the decay heat removal from spent fuel pools

Contact Info

Product

Resources

About