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Htr 2014 Paper Comparison Of Fission Product Release Predictions Using Parfume With Results From The Agr 1 Irradiation Experiment
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Book Synopsis HTR 2014 Paper - Comparison of Fission Product Release Predictions Using PARFUME with Results from the AGR-1 Safety Tests by :
Download or read book HTR 2014 Paper - Comparison of Fission Product Release Predictions Using PARFUME with Results from the AGR-1 Safety Tests written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Safety tests were conducted on fourteen fuel compacts from AGR-1, the first irradiation experiment of the Advanced Gas Reactor (AGR) Fuel Development and Qualification program, at temperatures ranging from 1600 to 1800°C to determine fission product release at temperatures that bound reactor accident conditions. The PARFUME (PARticle FUel ModEl) code was used to predict the release of fission products silver, cesium, strontium, and krypton from fuel compacts containing tristructural isotropic (TRISO) coated particles during the safety tests, and the predicted values were compared with experimental results. Preliminary comparisons between PARFUME predictions and post-irradiation examination (PIE) results of the safety tests show an overall over-prediction of the fractional release of these fission products, which is largely attributed to an over-estimation of the diffusivities used in the modeling of fission product transport in TRISO-coated particles. Correction factors to these diffusivities were assessed for silver and cesium in order to enable a better match between the modeling predictions and the safety testing results. In the case of strontium, correction factors could not be assessed because potential release during the safety tests could not be distinguished from matrix content released during irradiation. In the case of krypton, all the coating layers are partly retentive and the available data did not allow to determine their respective retention powers, hence preventing to derive any correction factors.
Book Synopsis HTR-2014 Paper Comparison of Fission Product Release Predictions Using PARFUME with Results from the AGR-1 Irradiation Experiment by :
Download or read book HTR-2014 Paper Comparison of Fission Product Release Predictions Using PARFUME with Results from the AGR-1 Irradiation Experiment written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The PARFUME (PARticle FUel ModEl) code was used to predict fission product release from tristructural isotropic (TRISO) coated fuel particles and compacts during the first irradiation experiment (AGR-1) of the Advanced Gas Reactor Fuel Development and Qualification program. The PARFUME model for the AGR-1 experiment used the fuel compact volume average temperature for each of the 620 days of irradiation to calculate the release of fission products silver, cesium, and strontium from a representative particle for a select number of AGR-1 compacts. Post-irradiation examination (PIE) measurements provided data on release of fission products from fuel compacts and fuel particles, and retention of fission products in the compacts outside of the SiC layer. PARFUME-predicted fractional release of these fission products was determined and compared to the PIE measurements. Results show an overall over-prediction of the fractional release of cesium by PARFUME. For particles with failed silicon carbide (SiC) layers, the over-prediction is by a factor of about two, corresponding to an over-estimation of the diffusivity in uranium oxycarbide (UCO) by a factor of about 100. For intact particles, whose release is much lower, the over-prediction is by an average of about an order of magnitude, which could additionally be attributed to an over-estimated diffusivity in SiC by about 30%. The release of strontium from intact particles is also over-estimated by PARFUME, which also points towards an over-estimated diffusivity of strontium in either SiC or UCO, or possibly both. The measured strontium fractional release from intact particles varied considerably from compact to compact, making it difficult to assess the effective over-estimation of the diffusivities. Furthermore, the release of strontium from particles with failed SiC is difficult to observe experimentally due to the release from intact particles, preventing any conclusions to be made on the accuracy or validity of the PARFUME predictions and the modeled diffusivity of strontium in UCO. In the case of silver, the comparisons between PARFUME and PIE are better than for cesium and strontium. They show a trend of over-prediction at low burnup and under-prediction at high burnup. PARFUME has limitations in the modeling of the temporal and spatial distributions of the temperature and burnup across the compacts, which affects the accuracy of its predictions. Nevertheless, the comparisons lie in the same order of magnitude.
Book Synopsis Comparison of Fission Product Release Predictions Using PARFUME with Results from the AGR-1 Safety Tests by :
Download or read book Comparison of Fission Product Release Predictions Using PARFUME with Results from the AGR-1 Safety Tests written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A comparison of the fission product release predictions of MATREL and FASTGRASS during a severe reactor accident by : A. J. Manley
Download or read book A comparison of the fission product release predictions of MATREL and FASTGRASS during a severe reactor accident written by A. J. Manley and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Data Summary Report for Fission Product Release Test VI-1 by :
Download or read book Data Summary Report for Fission Product Release Test VI-1 written by and published by . This book was released on 1989 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Evaluation of Fission Product Yields and the Production of a New Library (Ukfy2) of Independent and Cumulative Yields by : M. F. James
Download or read book New Evaluation of Fission Product Yields and the Production of a New Library (Ukfy2) of Independent and Cumulative Yields written by M. F. James and published by . This book was released on 1991-12-01 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fission product release experiment uce-9 data report. wpir 492 by : R. Mikusch
Download or read book Fission product release experiment uce-9 data report. wpir 492 written by R. Mikusch and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Prediction of fission product releases during oxidation of fuel in steam and air by : D. R. Mccracken
Download or read book Prediction of fission product releases during oxidation of fuel in steam and air written by D. R. Mccracken and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A review of volatility data for selected fission product elements by : W. G. Burns
Download or read book A review of volatility data for selected fission product elements written by W. G. Burns and published by . This book was released on 1990 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fission Product Transport Analysis by : James A. Gieseke
Download or read book Fission Product Transport Analysis written by James A. Gieseke and published by . This book was released on 1976 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Report of the Fission Product Inhalation Program by : Fission Product Inhalation Program
Download or read book Annual Report of the Fission Product Inhalation Program written by Fission Product Inhalation Program and published by . This book was released on 1971 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Correlations for Fission Product Release from N Reactor Fuel Under High-temperature Accident Conditions by :
Download or read book Correlations for Fission Product Release from N Reactor Fuel Under High-temperature Accident Conditions written by and published by . This book was released on 1988 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Evaluation of Fission Product Yields and the Production of a New Library (Ukfy2) of Independant and Cumulative Yields by : M.F. James
Download or read book New Evaluation of Fission Product Yields and the Production of a New Library (Ukfy2) of Independant and Cumulative Yields written by M.F. James and published by . This book was released on 1991-12-01 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Data Summary Report for Fission Product Release Test VI-2 by :
Download or read book Data Summary Report for Fission Product Release Test VI-2 written by and published by . This book was released on 1989 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Test of the Three-Gaussian Assumption for Fission Product Mass Yield Curves by : J. L. Cook
Download or read book Test of the Three-Gaussian Assumption for Fission Product Mass Yield Curves written by J. L. Cook and published by . This book was released on 1976 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fission Product?-ray Measurements of 235U and MCNP6 Predictions by :
Download or read book Fission Product?-ray Measurements of 235U and MCNP6 Predictions written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of an Improved Model for Predicting Fission Product Release from High Temperature Gas Cooled Reactors by : Daniel A. Smith
Download or read book Development of an Improved Model for Predicting Fission Product Release from High Temperature Gas Cooled Reactors written by Daniel A. Smith and published by . This book was released on 1994 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: