Search Results - "Alpy, Nicolas"

A one-dimensional full-range two-phase model to efficiently compute bifurcation diagrams in sub-cooled boiling flows in vertical heated tube by Medale, Marc, Cochelin, Bruno, Bissen, Edouard, Alpy, Nicolas

“…•Efficient computations of bifurcation diagrams in natural circulation boiling channels.•1D full-range two-phase drift-flux model with general-purpose closure…”
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Mapping of the thermodynamic performance of the supercritical CO2 cycle and optimisation for a small modular reactor and a sodium-cooled fast reactor by Pham, H.S., Alpy, N., Ferrasse, J.H., Boutin, O., Quenaut, J., Tothill, M., Haubensack, D., Saez, M.

“…The supercritical CO2 (sc-CO2) cycle is being promoted worldwide by many R&D energy organisations and companies as an alternative to the Rankine steam cycle…”
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An approach for establishing the performance maps of the sc-CO2 compressor: Development and qualification by means of CFD simulations by Pham, H.S., Alpy, N., Ferrasse, J.H., Boutin, O., Tothill, M., Quenaut, J., Gastaldi, O., Cadiou, T., Saez, M.

“…•Ability of CFD to predict the performance of a sc-CO2 test compressor is shown.•Risk of vapor pockets occurrence inside a scale 1:1 compressor is…”
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A numerical study of cavitation and bubble dynamics in liquid CO2 near the critical point by Pham, H.S., Alpy, N., Mensah, S., Tothill, M., Ferrasse, J.H., Boutin, O., Quenaut, J., Rodriguez, G., Saez, M.

“…•Thermal effects mechanism is found to strongly impede the bubble dynamics.•A model for the bubble collapse in liquid CO2 is proposed and benchmarked.•Slow…”
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Phenomenological investigation of sodium boiling in a SFR core during a postulated ULOF transient with CATHARE 2 system code: a stabilized boiling case by Alpy, Nicolas, Marsault, Philippe, Anderhuber, Marine, Gerschenfeld, Antoine, Sciora, Pierre, Kadri, Dominique, Perez, Jorge, Lavastre, Romain

“…In the framework of the research and development on GEN IV sodium fast reactors (SFRs), the phenomenology of sodium boiling during a postulated unprotected…”
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Paving the way to multi-case optimization of a steam Rankine cycle for cogeneration in nuclear power plants by Vescovi, Guilherme, Alpy, Nicolas, Haubensack, David, Azzaro-Pantel, Catherine, Stouffs, Pascal

“…The current global climate situation requires adequate energy technologies and systemic solutions to reduce CO2 emissions to reach the carbon neutrality target…”
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Simulation of Single-Phase Natural Circulation within the BEPU Framework: Sketching Scaling Uncertainty Principle by Multi-Scale CFD Approaches by Huang, Haifu, Perez, Jorge, Alpy, Nicolas, Medale, Marc

“…Best Estimate Plus Uncertainty International Conference (BEPU 2024), May 2024, Lucca, Italy In order to enhance safety, nuclear reactors in the design phase…”
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