National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Reactor Physics and Criticality Benchmark Evaluations for Advanced Nuclear Fuel.

DE2008938433

Publication Date	2008
Page Count	111
Abstract	The nuclear industry interest in advanced fuel and reactor design often drives towards fuel with uranium enrichments greater than 5 wt% 235U. Unfortunately, little data exists, in the form of reactor physics and criticality benchmarks, for uranium enrichments ranging between 5 and 10 wt% 235U. The primary purpose of this project is to provide benchmarks for fuel similar to what may be required for advanced light water reactors (LWRs). These experiments will ultimately provide additional information for application to the criticality-safety bases for commercial fuel facilities handling greater than 5 wt% 235U fuel. Because these experiments are designed primarily to be reactor physics benchmarks, and not just criticality benchmarks, it is desired to include measurements of critical boron concentration, relative pin powers, relative assembly flux, burnable absorber worth, and isothermal temperature coefficients, for each configuration. Guidelines for developing an appropriate experimental configuration include bounding current pressurized water and boiling water reactor (PWR and BWR, respectively) fuel-to-water and metal-to-water ratios and maintaining consistency between experiment geometry and current PWR and BWR analysis tools used for reload designs (e.g., CASMO/SIMULATE).
Keywords	Reactor physics Nuclear fuels Benchmarks Criticality Evaluation Nuclear reactors Design Uranium Enrichment Water cooled reactors BWR type reactors Boron Nuclear industry
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Sandia National Labs., Albuquerque, NM.; Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Oak Ridge National Lab., TN. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200907
Contract Number	DE-FG07-01SF22330

Reactor Physics and Criticality Benchmark Evaluations for Advanced Nuclear Fuel.

Reactor Physics and Criticality Benchmark Evaluations for Advanced Nuclear Fuel.
DE2008938433

Publication Date	2008
Page Count	111
Abstract	The nuclear industry interest in advanced fuel and reactor design often drives towards fuel with uranium enrichments greater than 5 wt% 235U. Unfortunately, little data exists, in the form of reactor physics and criticality benchmarks, for uranium enrichments ranging between 5 and 10 wt% 235U. The primary purpose of this project is to provide benchmarks for fuel similar to what may be required for advanced light water reactors (LWRs). These experiments will ultimately provide additional information for application to the criticality-safety bases for commercial fuel facilities handling greater than 5 wt% 235U fuel. Because these experiments are designed primarily to be reactor physics benchmarks, and not just criticality benchmarks, it is desired to include measurements of critical boron concentration, relative pin powers, relative assembly flux, burnable absorber worth, and isothermal temperature coefficients, for each configuration. Guidelines for developing an appropriate experimental configuration include bounding current pressurized water and boiling water reactor (PWR and BWR, respectively) fuel-to-water and metal-to-water ratios and maintaining consistency between experiment geometry and current PWR and BWR analysis tools used for reload designs (e.g., CASMO/SIMULATE).
Keywords	Reactor physics Nuclear fuels Benchmarks Criticality Evaluation Nuclear reactors Design Uranium Enrichment Water cooled reactors BWR type reactors Boron Nuclear industry
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Sandia National Labs., Albuquerque, NM.; Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Oak Ridge National Lab., TN. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200907
Contract Number	DE-FG07-01SF22330