Numerical Simulations with RELAP5-3D and RELAP5/mod3.3 of the Second Experimental Campaign on In-Box LOCA Transients for HCLL TBS
In-box LOCA was identified as one of the worst accidental scenarios for the HCLL TBS (Helium Cooled Lithium-Lead Test Blanket System). Aiming to experimentally analyze the consequences of this transient, ENEA designed and built THALLIUM (Test HAmmer in Lead LIthiUM), a facility that reproduces the &...
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| Format: | Article |
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MDPI AG
2021-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/15/4544 |
| _version_ | 1797525641230286848 |
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| author | Alessandro Venturini Marco Utili Nicola Forgione |
| author_facet | Alessandro Venturini Marco Utili Nicola Forgione |
| author_sort | Alessandro Venturini |
| collection | DOAJ |
| description | In-box LOCA was identified as one of the worst accidental scenarios for the HCLL TBS (Helium Cooled Lithium-Lead Test Blanket System). Aiming to experimentally analyze the consequences of this transient, ENEA designed and built THALLIUM (Test HAmmer in Lead LIthiUM), a facility that reproduces the <i>LiPb</i> loop of the HCLL TBS. Two experimental campaigns were carried out by simulating the rupture of a stiffening plate and the related helium injection in the <i>LiPb</i> loop. The obtained experimental data were used to check the capabilities of RELAP5 system code to reproduce the pressure wave propagation that follows this accident. The first simulations were made with RELAP5-3D using <i>LBE</i> (Lead–Bismuth Eutectic) as a system fluid, as the thermophysical properties of <i>LiPb</i> are tabulated only up to a maximum value of 40 bar in this version of the code. Then, <i>LiPb</i> properties were implemented in RELAP5/mod3.3, after selecting the proper correlations from a literature review. This work summarizes the numerical simulations of the second experimental campaign, which was simulated with both versions of the code. The simulations highlight that the code is able to accurately reproduce the experimental results and that RELAP5-3D is slightly more precise than RELAP5/mod3.3 in predicting the pressure trends. |
| first_indexed | 2024-03-10T09:15:46Z |
| format | Article |
| id | doaj.art-4e82d9e1ee89499187fececc03c6cec4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T09:15:46Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4e82d9e1ee89499187fececc03c6cec42023-11-22T05:34:28ZengMDPI AGEnergies1996-10732021-07-011415454410.3390/en14154544Numerical Simulations with RELAP5-3D and RELAP5/mod3.3 of the Second Experimental Campaign on In-Box LOCA Transients for HCLL TBSAlessandro Venturini0Marco Utili1Nicola Forgione2ENEA Brasimone, 40032 Camugnano, BO, ItalyENEA Brasimone, 40032 Camugnano, BO, ItalyDipartimento di Ingegneria Civile e Industriale, University of Pisa, Largo Lucio Lazzarino 2, 56122 Pisa, PI, ItalyIn-box LOCA was identified as one of the worst accidental scenarios for the HCLL TBS (Helium Cooled Lithium-Lead Test Blanket System). Aiming to experimentally analyze the consequences of this transient, ENEA designed and built THALLIUM (Test HAmmer in Lead LIthiUM), a facility that reproduces the <i>LiPb</i> loop of the HCLL TBS. Two experimental campaigns were carried out by simulating the rupture of a stiffening plate and the related helium injection in the <i>LiPb</i> loop. The obtained experimental data were used to check the capabilities of RELAP5 system code to reproduce the pressure wave propagation that follows this accident. The first simulations were made with RELAP5-3D using <i>LBE</i> (Lead–Bismuth Eutectic) as a system fluid, as the thermophysical properties of <i>LiPb</i> are tabulated only up to a maximum value of 40 bar in this version of the code. Then, <i>LiPb</i> properties were implemented in RELAP5/mod3.3, after selecting the proper correlations from a literature review. This work summarizes the numerical simulations of the second experimental campaign, which was simulated with both versions of the code. The simulations highlight that the code is able to accurately reproduce the experimental results and that RELAP5-3D is slightly more precise than RELAP5/mod3.3 in predicting the pressure trends.https://www.mdpi.com/1996-1073/14/15/4544lead-lithium eutecticIn-box LOCARELAP5HCLL TBS |
| spellingShingle | Alessandro Venturini Marco Utili Nicola Forgione Numerical Simulations with RELAP5-3D and RELAP5/mod3.3 of the Second Experimental Campaign on In-Box LOCA Transients for HCLL TBS Energies lead-lithium eutectic In-box LOCA RELAP5 HCLL TBS |
| title | Numerical Simulations with RELAP5-3D and RELAP5/mod3.3 of the Second Experimental Campaign on In-Box LOCA Transients for HCLL TBS |
| title_full | Numerical Simulations with RELAP5-3D and RELAP5/mod3.3 of the Second Experimental Campaign on In-Box LOCA Transients for HCLL TBS |
| title_fullStr | Numerical Simulations with RELAP5-3D and RELAP5/mod3.3 of the Second Experimental Campaign on In-Box LOCA Transients for HCLL TBS |
| title_full_unstemmed | Numerical Simulations with RELAP5-3D and RELAP5/mod3.3 of the Second Experimental Campaign on In-Box LOCA Transients for HCLL TBS |
| title_short | Numerical Simulations with RELAP5-3D and RELAP5/mod3.3 of the Second Experimental Campaign on In-Box LOCA Transients for HCLL TBS |
| title_sort | numerical simulations with relap5 3d and relap5 mod3 3 of the second experimental campaign on in box loca transients for hcll tbs |
| topic | lead-lithium eutectic In-box LOCA RELAP5 HCLL TBS |
| url | https://www.mdpi.com/1996-1073/14/15/4544 |
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