Publications associées à Influence of convection on the thermal storage performance of energy tunnels

Publications associées (14)

The Combined Effects of Vertical and Horizontal Shear Instabilities in Stellar Radiative Zones

Shear instabilities can be the source of significant amounts of turbulent mixing in stellar radiative zones. Past attempts at modeling their effects (either theoretically or using numerical simulations) have focused on idealized geometries, where the shear ...

Iop Publishing Ltd2024

Continuous production prototype for scaling up of graphene oxide/carbon nanotube composite synthesis towards efficient hydrogen storage

Andreas Züttel, Yudong Xue, Yunting Wang

A continuous production prototype for scaling up the synthesis of a graphene oxide/multi-walled carbon nanotubes (GO/MWCNTs) composite as a hydrogen storage material has been proposed in this study. This prototype consists of an automatic feeding and mixin ...

2024

Advection Boundary Law for sound transmission attenuation of plane and spinning guided modes

Hervé Lissek, Maxime Volery

Sound attenuation along a waveguide is a highly demanded research field, for applications ranging from heating and air-conditioning ventilation systems, to aircraft turbofan engines. Electroacoustic devices and digital control have provided the tools for c ...

European Acoustics Association2024

Probabilistic Techno-Economic Assessment of Medium-Scale Photoelectrochemical Fuel Generation Plants

Sophia Haussener, Alexandre Dominique M. Cattry

Photoelectrochemical (PEC) systems are promising approaches for sustainable fuel processing. PEC devices, like conventional photovoltaic-electrolyzer (PV-EC) systems, utilize solar energy for splitting water into hydrogen and oxygen. Contrary to PV-EC syst ...

2024

Numerical study on a new manifold ring-shaped microchannel structure for circular heat source with excellent temperature uniformity

Weiyu Tang

The manifold microchannel heat sink shows great potential for cooling high-heat-flux electronic equipment owing to its exceptional thermal and flow performance. A new manifold ring-shaped channel design is introduced to improve the temperature uniformity f ...

ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER2024

Performances studies of a basket-based solar cooker for humanitarian aid in Uganda

David Notzon, Juliette Loan Dutheil, Andreas Schueler, Luc Burnier, Jérémy Jacques Antonin Fleury, Krishna Manwani, Romain Schindelholz, Chiara Ongaro

This study explores the suitability of a basket -based solar cooker for cooking in Uganda, an equatorial country. The solar cooker is designed to be easily constructed and based on recycled and locally available materials. Its performance in terms of cooki ...

Pergamon-Elsevier Science Ltd2023

Precious metal-free (photo)electrochemistry for green hydrogen production

Hannah Elizabeth Johnson

Climate change caused by anthropogenic greenhouse gas emissions necessitates a transition from fossil resources to greener fuels and chemicals. Hydrogen is a promising green energy vector due to its high gravimetric energy density, its potential use in fue ...

EPFL2023

Future Swiss Energy Economy: The Challenge of Storing Renewable Energy

Paul Joseph Dyson, Andreas Züttel, Noris André Gallandat

Fossil fuels and materials on Earth are a finite resource and the disposal of waste into the air, on land, and into water has an impact on our environment on a global level. Using Switzerland as an example, the energy demand and the technical challenges, a ...

FRONTIERS MEDIA SA2022

Decentralized ICT integration in residential buildings

François Maréchal, Dorsan Alexis A. Lepour

To answer the growing demand for data computing, data storage and data transmission, the current trend is to construct centralized hyperscale data centers, whose power usage effectiveness (PUE) has substantially improved in recent years. Still, the operati ...

Technical University of Denmark2022

Comparing thermal performance of standard humanitarian tents

Dusan Licina, Sergi Aguacil Moreno, Paolo Tombesi, Shen Yang, Riccardo Vannucci, André Ullal

Humanitarian tents provide emergency shelter for people displaced by conflict and disaster in diverse climatic conditions. This article compares the thermal performance of two standard humanitarian tents – the Standard Family Tent (SFT) and the Geodesic Fa ...

2022

Investigating finite-size effects in molecular dynamics simulations of ion diffusion, heat transport, and thermal motion in superionic materials

Federico Grasselli

The effects of the finite size of the simulation box in equilibrium molecular dynamics simulations are investigated for prototypical superionic conductors of different types, namely, the fluorite-structure materials PbF2, CaF2, and UO2 (type II), and the a ...

AIP Publishing2022

Experimental facility for reduced scale model testing of hydraulic machines hybridized with a battery energy storage system

Mario Paolone, Sidi-Rachid Cherkaoui, Elena Vagnoni, Francesco Gerini, Martin Seydoux

With a continuously growing share of non-dispatchable renewable energy sources in the power mix, flexibility in hydropower provision is becoming fundamental. The major role played by hydropower in frequency regulation in the last years has underlined the p ...

IOP Publishing2021

Reversible solid-oxide cell stack based power-to-x-to-power systems: Economic potential evaluated via plant capital-cost target

Jan Van Herle

Electrical energy storage systems are indispensable for the electrical grid with high penetration renewables. Reversible solid-oxide cell stack based power-to-x-to-power systems, which can switch between power generation and power storage, can achieve a hi ...

ELSEVIER SCI LTD2021

On the modelling of the transition between contact-line and microlayer evaporation regimes in nucleate boiling

Lubomír Bures

Formation of a microlayer in nucleate boiling results in substantial changes to the heat-transfer dynamics of the process, and establishing a criterion to distinguish between the microlayer and contact-line regimes encountered is necessary to obtain a quan ...

Cambridge University Press2021