Search Results - "Sánchez Espinoza, Victor Hugo"

The EC MUSA Project on Management and Uncertainty of Severe Accidents: Main Pillars and Status by Herranz, Luis Enrique, Beck, Sara, Sánchez-Espinoza, Victor Hugo, Mascari, Fulvio, Brumm, Stephan, Coindreau, Olivia, Paci, Sandro

“…In the current state of maturity of severe accident codes, the time has come to foster the systematic application of Best Estimate Plus Uncertainties (BEPU) in…”
Get full text

Time discretization sensitivity analysis for a rod ejection transient scenario in a generic SMR concept using Serpent/SUBCHANFLOW by Huaccho, Gianfranco, Sánchez-Espinoza, Victor Hugo, Mercatali, Luigi

“…This paper analyses a control rod ejection transient scenario in a generic SMR concept using the multi-physics coupling tool which includes the Monte Carlo…”
Get full text

High-Fidelity Steady-State and Transient Simulations of an MTR Research Reactor Using Serpent2/Subchanflow by Almachi, Juan Carlos, Sánchez-Espinoza, Víctor Hugo, Imke, Uwe

“…In order to join efforts to develop high-fidelity multi-physics tools for research reactor analysis, the KIT is conducting studies to modify the coupled…”
Get full text

Assessing the impact of DIONISIO-SubChanFlow code coupling in nuclear fuel performance simulations by Cazado, Mauricio Exequiel, Sánchez-Espinoza, Victor Hugo, Soba, Alejandro

“…Realistic simulation of nuclear fuel performance requires not only validated models capable of describing the thermomechanical phenomena that take place within…”
Get full text

Multiphysics modeling of a reactivity insertion transient at different fidelity levels in support to the safety assessment of a SMART-like small modular reactor by Mercatali, Luigi, Huaccho, Gianfranco, Sanchez-Espinoza, Victor-Hugo

“…Typical design basis accidents such as the control Rod Ejection Accident (REA) will need to be evaluated during the safety analysis in support the licensing…”
Get full text

Verification of the Parallel Transport Codes Parafish and AZTRAN with the TAKEDA Benchmarks by Duran-Gonzalez, Julian, Sanchez-Espinoza, Victor Hugo, Mercatali, Luigi, Gomez-Torres, Armando, Valle-Gallegos, Edmundo del

“…With the increase in computational resources, parallel computation in neutron transport codes is inherent since it allows simulations with high spatial-angular…”
Get full text

Validation of NEPTUNE-CFD Two-Phase Flow Models Using Experimental Data by Böttcher, Michael, Chiva Vicent, Sergio, Sánchez Espinoza, Victor Hugo, Mañes, Jorge Pérez, Stieglitz, Robert

“…This paper deals with the validation of the two-phase flow models of the CFD code NEPTUNEC-CFD using experimental data provided by the OECD BWR BFBT and PSBT…”
Get full text

Analysis of primary bleed and feed strategies for selected SBLOCA sequences in a German Konvoi PWR using ASTEC V2.0 by Gómez-García-Toraño, Ignacio, Sánchez-Espinoza, Víctor-Hugo, Stieglitz, Robert, Queral, César

“…•SAM efficiency during selected SBLOCAs in Konvoi PWR evaluated using ASTEC V2.0.•PSD must be initiated at CET=400°C or with a 20min delay to delay SA…”
Get full text

A New Coupled CFD/Neutron Kinetics System for High Fidelity Simulations of LWR Core Phenomena: Proof of Concept by Stieglitz, Robert, Chiva Vicent, Sergio, Sánchez Espinoza, Victor Hugo, Mañes, Jorge Pérez

“…The Institute for Neutron Physics and Reactor Technology (INR) at the Karlsruhe Institute of Technology (KIT) is investigating the application of the meso- and…”
Get full text

Investigation of SAM measures during selected MBLOCA sequences along with Station Blackout in a generic Konvoi PWR using ASTECV2.0 by Gómez-García-Toraño, Ignacio, Sánchez Espinoza, Víctor Hugo, Stieglitz, Robert

“…•Reflooding is investigated for selected MBLOCA sequences in a Konvoi PWR using ASTEC.•After SBO, there is a grace time of 40min up to the detection of a…”
Get full text

Uncertainty and Sensitivity Studies with TRACE-SUSA and TRACE-DAKOTA by Means of Transient BFBT Data by Jaeger, Wadim, Sánchez Espinoza, Victor Hugo, Montero Mayorga, Francisco Javier, Queral, Cesar

“…In the present paper, an uncertainty and sensitivity study is performed for transient void fraction and pressure drop measurements. Two transients have been…”
Get full text

Assessment of primary and secondary bleed and feed procedures during a Station Blackout in a German Konvoi PWR using ASTECV2.0 by Gómez-García-Toraño, Ignacio, Sánchez-Espinoza, Víctor-Hugo, Stieglitz, Robert, Queral, César, Rebollo, María-José

“…•Efficiency of SAM during SBO in Konvoi PWR is assessed using ASTECV2.0.•Secondary bleed/feed must be launched before CET > 400 °C and with 10 kg/s.•Primary…”
Get full text

Uncertainty and Sensitivity Studies with TRACE-SUSA and TRACE-DAKOTA by Means of Steady State BFBT Data by Jaeger, Wadim, Sánchez Espinoza, Victor Hugo, Montero Mayorga, Francisco Javier, Queral, Cesar

“…The subject of the present paper is the uncertainty and sensitivity studies for steady state BFBT results including pressure drop and void fraction…”
Get full text

Validation of ASTECV2.1 based on the QUENCH-08 experiment by Gómez-García-Toraño, Ignacio, Sánchez-Espinoza, Víctor-Hugo, Stieglitz, Robert, Stuckert, Juri, Laborde, Laurent, Belon, Sébastien

“…•ASTECV2.1 can reproduce QUENCH-08 experimental trends e.g. hydrogen generation.•Radial temperature gradient and heat transfer through argon gap are…”
Get full text

Review and proposal for heat transfer predictions at supercritical water conditions using existing correlations and experiments by Jäger, Wadim, Sánchez Espinoza, Victor Hugo, Hurtado, Antonio

“…► Implementation of heat transfer correlations for supercritical water into TRACE. ► Simulation of several heat transfer experiments with modified TRACE…”
Get full text

Analysis of MBLOCA and LBLOCA success criteria in VVER-1000/V320 reactors: New proposals for PSA Level 1 by Redondo-Valero, Elena, Queral, César, Fernandez-Cosials, Kevin, Sanchez-Espinoza, Víctor Hugo

“…The specific configuration of the safety systems in VVER-1000/V320 reactors allows a comprehensive study of the Loss of Coolant Accident (LOCA). In the present…”
Get full text

Validation of ASTEC2.1 using QUENCH-12 for VVER-Reactors by Mercan, Ahmet Kağan, Sánchez-Espinoza, Victor Hugo, Gabrielli, Fabrizio

“…•Oxidation phenomena and molten material relocation for a severe accident case.•Different cladding material composition of VVER plants can result as higher…”
Get full text

KIT Multi-scale thermal–hydraulic coupling methods for improved simulation of nuclear power plants by Hugo Sanchez-Espinoza, Victor, Zhang, Kanglong, Campos Muñoz, Alejandro, Böttcher, Michael

“…•Multi-scale methods for coupling of thermal hydraulic codes.•Domain overlapping and domain decomposition approach.•Detailed CFD-models.•Validation of…”
Get full text

Implementation and validation of CHF-models in the two-phase porous-media code TWOPORFLOW by Jauregui Chavez, Veronica, Imke, Uwe, Hugo Sanchez-Espinoza, Victor

“…•Extension of TWOPORFLOW with CHF correlations.•Validation of CHF-models with steady state data.•Validation of CHF-models with transient data.•Improved and…”
Get full text

Analysis of the consequences of a LBLOCA with SBO severe accident in a generic VVER-1000 by means of ASTEC and JRODOS codes by Kağan Mercan, Ahmet, Gabrielli, Fabrizio, Hugo Sanchez-Espinoza, Victor, Raskob, Wolfgang

“…•Phenomena inside and outside of the vessel have been demonstrated, and the release and transport of fission products in a severe accident have been…”
Get full text