Concept
Critical heat flux
Publications associées (184)
Plasmoid drift and first wall heat deposition during ITER H-mode dual-SPIs in JOREK simulations
The heat flux mitigation during the thermal quench (TQ) by the shattered pellet injection (SPI) is one of the major elements of disruption mitigation strategy for ITER. It's efficiency greatly depends on the SPI and the target plasma parameters, and is ult ...
Iop Publishing Ltd2024Extension of GeN-Foam to departure from nucleate boiling prediction and validation against the OECD/NRC PSBT benchmark
Carlo Fiorina, Yuhang Niu, Hao Qin
The prediction of departure from nucleate boiling (DNB) has always been a crucial aspect of thermal-hydraulic codes for the analysis of Light Water Reactors. In this paper, GeN-Foam, a multi-physics code developed based on OpenFOAM, has been enhanced to in ...
Lausanne2023Fractures Thermal Energy Storage (FTES)
This project aims at designing a laboratory-scale experiment to investigate the thermal performance of Fractures Thermal Energy Storage (FTES) systems. While previous field tests have focused on creating horizontal planar fractures at shallow depths, none ...
2023Heat transfer of uncoated and nanostructure coated commercially micro-enhanced refrigeration tubes under pool boiling conditions
The heat transfer performance of commercially produced micro-enhanced tubes with and without a nanocoating was investigated under pool boiling of saturated refrigerant. These multiscale enhancements were on the outside of 19 mm horizontal copper tubes heat ...
Oxford2023Experimental study of the hydrodynamic and thermal performances of ventilated wall structures
Dolaana Khovalyg, Mohammad Rahiminejad
The presence of a ventilated air gap behind the external cladding in a building envelope is known to have a tangible contribution to the overall performance of the wall assembly. In the present study, the hydrodynamic and thermal performances of ventilated ...
2023Multiscale enhancement of refrigerant falling film boiling by combining commercially enhanced tubes with nanostructures
Multiscale surface structures offer the opportunity to combine the heat transfer enhancement provided by microscale structures with the dryout benefits provided by some nanostructures, which is particularly attractive for falling film evaporators, who have ...
Oxford2023Convection of snow: when and why does it happen?
Convection of water vapor in snowpacks is supposed to have a major impact on snow density and microstructure profiles with strong implications for the thermal regime and snow stability. However, the process has never been directly measured and only recentl ...
FRONTIERS MEDIA SA2023A parametric study on pool boiling heat transfer and critical heat flux on structured surfaces with artificial cavities
Luis Guillermo Villanueva Torrijo, Ahmad Reza Motezakker
Emerging applications in new generation electronic devices require effective heat removal and thermal man-agement. In this regard, boiling is a phase change phenomenon capable of dissipating a large amount of heat compared to the sensible heat. In this stu ...
PERGAMON-ELSEVIER SCIENCE LTD2022Heat transfer of flow boiling carbon dioxide in vertical upward direction
Jürg Alexander Schiffmann, Rémi Revellin, David Schmid
Heat transfer measurements of flow boiling Carbon Dioxide (CO2) in vertical upward direction have been carried out with a dedicated test facility at the European Organization for Nuclear Research (CERN). The experiments have been conducted in a vertical up ...
2022Flow Boiling of Carbon Dioxide at Different Channel Orientations for the Thermal Management of Future Detector Technologies at the High-Luminosity Large Hadron Collider at CERN
The global warming potential (GWP) of working fluids in thermodynamic cycles and their environmental impact have been gaining considerable attention within the recent years. The global objectives on climate protection are becoming increasingly ambitious, w ...
EPFL2022