MELCOR 1.8.2 assessment: Aerosol experiments ABCOVE AB5, AB6, AB7, and LACE LA2

Souto, Francisco José Dutra; Haskin, F.E.; Kmetyk, L.N.

doi:10.2172/10102146

Cited by 9 publications

(8 citation statements)

References 4 publications

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“…[26] MELCOR models condensation/evaporation effects on aerosol particle size, but does not include any model for such hygroscopic effects. The lack of such a model has been noted in previous MELCOR assessments of aerosol behavior in humid atmospheres [3,27].…”

Section: Condensat Ion/evaporat Ion On Aerosolsmentioning

confidence: 99%

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MELCOR 1.8.3 assessment: CSE containment spray experiments

Kmetyk¹

1994

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Section: Condensat Ion/evaporat Ion On Aerosolsmentioning

confidence: 99%

“…The lack of such a model has been noted in previous MELCOR assessments of aerosol behavior in humid atmospheres [3,27]. However, in our reference calculation, condensation/evaporation was specified to take place only on water aerosols and not on all aerosols present (as in the code default), to avoid other modelling problems.…”

Section: Evaporat Ion/condensat Ionmentioning

confidence: 99%

MELCOR 1.8.3 assessment: CSE containment spray experiments

Kmetyk¹

1994

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“…There have been several researches on comparison and validation of these computer codes with experiments, including Phébus FPT and ABCOVE & LACE experiments. For example, L. Herranz et al [5] validated CONTAIN 2.0 using Phébus FPT1 experiment and J. Souto et al [18] did the validation of MELCOR 1.8.2 code using ABCOVE & LACE experiments. G. Gyenes et al [19] validated the CPA module (Containment Package implemented in the European integral code ASTEC) using Phébus FPT0, FPT1, and FPT2 experiments.…”

Section: Introductionmentioning

confidence: 99%

Validation of Modified ART Mod 2 Code through Comparison with Aerosol Deposition of Cesium Compound in Phébus FPT3 Containment Vessel

Vechgama¹,

Silva²,

Rassame

2019

Science and Technology of Nuclear Installations

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Evaluation of aerosol deposition in the containment vessel is an important step for the assessment of radioactive material release to the environment. ART Mod 2 is a calculation code that is used for evaluation of aerosol deposition in the containment vessel. The authors modified aerosol deposition models of ART Mod 2, namely, gravitational settling model, Brownian diffusion model, diffusiophoresis model, and thermophoresis model in order to increase potential of capturing the deposition phenomena. This study aims to compare the simulated results of modified ART Mod 2 with aerosol deposition of cesium compounds in the containment vessel of Phébus FPT3 experiment, in order to validate modified ART Mod 2 code. It is found that aerosol deposition using modified ART Mod 2 agrees with Phébus FPT3. Prediction of Brownian diffusion is significantly improved due to the consideration of turbulent damping process. Cesium mass flow rate and aerosol size are factors that can significantly influence the uncertainty of the results. When conditions of single volumes are carefully selected to match those of the Phébus FPT3 experiment, modified ART Mod 2 can predict aerosol deposition in Phébus FPT3 with relative accuracy.

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“…A number of experimental studies have been conducted to physically and chemically characterize Na compounds in aerosols. Some of the most outstanding facilities involved in this investigation are: CSTF in U.S. (Hilliard et al, 1985;Postma and Owen, 1980;Souto et al, 1994), FAUNA in Germany (Cherdron and Charpenel, 1985;Cherdron and Jordan, 1980) (Subramanian et al, 2009;Subramanian and Baskaran, 2007), NSPP in U.S. (Adams et al, 1979) and ESMERALDA in France (Jordan et al, 1988).…”

Section: Aerosol Characterization and Size Distributionmentioning

confidence: 99%

“…The Lhiaubet et al benchmark concluded that aerosol codes were adequate for pool fire conditions in the sense that they tended to be conservative by overestimating (but not massively) the suspended aerosol concentration. Later, Souto et al (1994) demonstrated that the aerosol transport mechanisms were accurate enough as long as particles and particle-particle interactions were well described by modelling the CSTF experiments with the MELCOR 1.8.2 code.…”

Section: Frame Of the Thesis 14mentioning

confidence: 99%

Development and validation of key aerosol models for source term predictions in sodium-cooled fast reactors during beyond design basis accidents

Martín¹

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Es el momento de agradecer a todos aquellos que han hecho posible esta tesis. En primer lugar a Luis Enrique Herranz, director de esta tesis. Gracias por hacerla posible, por tu generosidad al compartir tu pasión por la ciencia y todo tu conocimiento, por las largas discusiones para saber por qué ocurren las cosas, por inculcarme el buen saber hacer. No ha sido fácil el camino, gracias por tu perseverancia y por creer que podía hacerlo. Quiero también agradecer a Martin Kissane, co-director de esta tesis, su involucración desde el inicio y su dedicación y esfuerzo en la supervisión de este trabajo. Gracias al Departamento de Ingeniería Nuclear de la UPM, y en especial a Eduardo Gallego, por darme la oportunidad de comenzar a trabajar en este campo. Gracias a Ian Ford, profesor de University College London, por compartir con nosotros todo su conocimiento sobre nucleación. Su punto de vista nos dio una nueva perspectiva sobre la investigación que estábamos comenzando. También quería agradecer al equipo de la División de Seguridad Nuclear del IRSN, su tiempo y acogida los meses que pasé allí, especialmente a Nathalie Girault. Mi gratitud a Claus Spengler por las fructíferas discusiones mantenidas. Me gustaría acordarme de todos mis compañeros de la Unidad de Seguridad Nuclear del CIEMAT, con quienes he compartido tantos buenos momentos. Gracias a Jaime, tú me ayudaste a empezar con esto. Paco y Claudia, por vuestro apoyo, por los buenos momentos. Claudia, me moviste de la silla equivocada cuando no veía más que problemas. En especial a mi gran amigo Joan, por tu paciencia infinita, tus ánimos y apoyo, siempre dispuesto a echar una mano, este trabajo también es tuyo. En especial dedico esta tesis a mi gran apoyo, mi familia: mis padres Isabel y Paco, mis hermanos David y Pablo. Gracias a vosotros soy quien soy. A mis abuelos, cuánto os echo de menos. A Cristina, mi amiga del alma. A mi marido, Mero. Tu apoyo incondicional, tu paciencia, tus ánimos para que siguiera adelante, tu amor, han hecho que esta tesis sea posible. Y por último a mi hija Manuela, tú me has dado la voluntad para acabar esta tesis. Para finalizar, quiero dar las gracias al CIEMAT por darme la oportunidad de realizar esta tesis y a la UE por la financiación del proyecto JASMIN.

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MELCOR 1.8.2 assessment: Aerosol experiments ABCOVE AB5, AB6, AB7, and LACE LA2

Abstract: for the United Stater Department of Energy under Contract DE-ACOeQ4ALApproved for public rele ution is unlimited.

Cited by 9 publications

References 4 publications

MELCOR 1.8.3 assessment: CSE containment spray experiments

MELCOR 1.8.3 assessment: CSE containment spray experiments

Validation of Modified ART Mod 2 Code through Comparison with Aerosol Deposition of Cesium Compound in Phébus FPT3 Containment Vessel

Development and validation of key aerosol models for source term predictions in sodium-cooled fast reactors during beyond design basis accidents

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