Search Results - "Introini, Carolina"

Impact of Malfunctioning Sensors on Data-Driven Reduced Order Modelling: Application to Molten Salt Reactors by Riva, Stefano, Introini, Carolina, Zio, Enrico, Cammi, Antonio

“…Over the years, the development of Data-Driven Reduced Order Modelling (DDROM) techniques has paved the way for novel approaches to combine the physical…”
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Dynamic mode decomposition for the stability analysis of the Molten Salt Fast Reactor core by Di Ronco, Andrea, Introini, Carolina, Cervi, Eric, Lorenzi, Stefano, Jeong, Yeong Shin, Seo, Seok Bin, Bang, In Cheol, Giacobbo, Francesca, Cammi, Antonio

“…•Dynamic Mode Decomposition (DMD) is employed to analyse a fast MSFR transient.•A previously developed OpenFOAM multiphysics model is used for full order…”
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1D modelling and preliminary analysis of the coupled DYNASTY–eDYNASTY natural circulation loop by Benzoni, Gabriele, Introini, Carolina, Lorenzi, Stefano, Loi, Lorenzo, Cammi, Antonio

“…In the continuous strive to improve the safety of current-generation and next-generation nuclear power plants, natural circulation can be used to design…”
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A Mass Conservative Kalman Filter Algorithm for Computational Thermo-Fluid Dynamics by Introini, Carolina, Lorenzi, Stefano, Cammi, Antonio, Baroli, Davide, Peters, Bernhard, Bordas, Stéphane

“…This paper studies Kalman filtering applied to Reynolds-Averaged Navier⁻Stokes (RANS) equations for turbulent flow. The integration of the Kalman estimator is…”
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Multi-physics model bias correction with data-driven reduced order techniques: Application to nuclear case studies by Riva, Stefano, Introini, Carolina, Cammi, Antonio

“…Due to the multiple physics involved and their mutual and complex interactions, nuclear engineers and researchers are constantly working on developing highly…”
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Stabilization of Generalized Empirical Interpolation Method (GEIM) in presence of noise: A novel approach based on Tikhonov regularization by Introini, Carolina, Cavalleri, Simone, Lorenzi, Stefano, Riva, Stefano, Cammi, Antonio

“…The Empirical Interpolation Method (EIM), and its generalized version (GEIM), are non-intrusive, reduced-basis model order reduction methods hereby adopted and…”
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Data-driven model order reduction for sensor positioning and indirect reconstruction with noisy data: Application to a Circulating Fuel Reactor by Cammi, Antonio, Riva, Stefano, Introini, Carolina, Loi, Lorenzo, Padovani, Enrico

“…Sensor positioning and real-time estimation of non-observable fields is an open question in the nuclear sector, especially for advanced nuclear reactors. In…”
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Development and implementation of a multi-physics high fidelity model of the TRIGA mark II reactor by Castagna, Christian, Introini, Carolina, Cammi, Antonio

“…•A coupling between Serpent and OpenFOAM is developed for the TRIGA Mark II.•The results accord with the experimental data for the first configuration…”
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Stability assessment of an optimized cooling configuration of a fusion gyrotron resonant cavity through an analytical model by Difonzo, Rosa, Cammi, Antonio, Introini, Carolina, Savoldi, Laura

“…•Power variation can cause expansion, thus cooling variation in the gyrotron cavity.•In the model the expansion law links temperature and…”
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Hybrid data assimilation methods, Part I: Numerical comparison between GEIM and PBDW by Riva, Stefano, Introini, Carolina, Lorenzi, Stefano, Cammi, Antonio

“…Hybrid Data Assimilation (HDA) methods are a class of numerical methods that aim at integrating Model Order Reduction (MOR) techniques into a Data Assimilation…”
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Stability analysis on two single-phase coupled natural circulation loops by Novarese, Elia, Benzoni, Gabriele, Introini, Carolina, Lorenzi, Stefano, Savoldi, Laura, Cammi, Antonio

“…In designing Molten Salt Reactors, implementing passive safety systems that rely on natural circulation phenomena can be an attractive proposal to remove decay…”
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Numerical Monte Carlo analysis of the void coefficient in Pavia TRIGA Mark II reactor by Boccelli, Riccardo, Cammi, Antonio, Introini, Carolina, Lorenzi, Stefano

“…In nuclear reactor safety assessment studies, void formation in the coolant, both in nominal operation and in accidental scenarios, must be considered since…”
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Model order reduction of a once-through steam generator via dynamic mode decomposition by Xu, Yifan, Peng, Minjun, Cammi, Antonio, Introini, Carolina, Xia, Genglei

“…•A reduced order model (ROM) of a Once-Through Steam Generator (OTSG) was developed based on Dynamic Mode Decomposition.•The key operating dynamical…”
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Non-intrusive system state reconstruction from indirect measurements: A novel approach based on Hybrid Data Assimilation methods by Introini, Carolina, Riva, Stefano, Lorenzi, Stefano, Cavalleri, Simone, Cammi, Antonio

“…The problem of estimating in real-time the state of a system by combining experimental data and models has been extensively addressed in literature. In…”
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Hybrid Data Assimilation methods, Part II: Application to the DYNASTY experimental facility by Riva, Stefano, Introini, Carolina, Lorenzi, Stefano, Cammi, Antonio

“…Hybrid Data Assimilation (HDA) methods aim at combining the advantages of mathematical models and experimental observations by integrating Model Order…”
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Preliminary Remote Handling Analysis and Validation of the Electrical Connectors Bridge for the IFMIF-DONES High Flux Test Module by Benzoni, Gabriele, Ronco, Andrea Di, Introini, Carolina, Micciche, Gioacchino, Cammi, Antonio

“…The International Fusion Materials Irradiation Facility-DEMO-Oriented Neutron Source (IFMIF-DONES) is an innovative accelerator facility aiming to achieve a…”
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OFELIA: An OpenMC-FEniCSx coupling for neutronic calculation with temperature feedback by Loi, Lorenzo, Riva, Stefano, Introini, Carolina, Giacobbo, Francesca, Wang, Xiang, Cammi, Antonio

“…The state of an operating nuclear reactor depends on several physical phenomena that coexist and are interdependent: they can be taken into account…”
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Reactor dynamics analysis using Model Order Reduction: The TRIGA Mark II reactor case study by Introini, Carolina, Lorenzi, Stefano, Giacobbo, Francesca, Salvini, Andrea, Wang, Xiang, Cammi, Antonio

“…Compared to conventional engineering systems, nuclear reactors present unique physical and safety features that make their high-fidelity modelling both…”
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Stability analysis of a zero-dimensional model of PWR core using non-modal stability theory by Introini, Carolina, Cammi, Antonio, Giacobbo, Francesca

“…•Non-modal stability theory is presented and briefly discussed.•A Non Modal Stability Analysis was performed for studying stability for PWR nuclear…”
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Preliminary validation of the 1D modeling of the DYNASTY natural circulation loop against results from water experimental campaign by Benzoni, Gabriele, Introini, Carolina, Lorenzi, Stefano, Cammi, Antonio

“…In the continuous improvements of the safety of nuclear power plants, the study of natural circulation is of primary importance for developing passive safety…”
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