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Force Scaling Comparison of Transport Phenomena in Proton Exchange Membrane Fuel Cell Flow Channels

Publications associées (45)

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The present and future challenges that humanity is facing regarding consumption and supply of energy constitute the context of this research. The technology in which we are interested is the fuel cell, mainly because of its high efficiency for the conversi ...

EPFL2016

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We investigate the stability of thin viscous films coated on the inside of a horizontal cylindrical substrate. In such a case, gravity acts both as a stabilizing force through the progressive drainage of the film and as a destabilizing force prone to form ...

Amer Physical Soc2016

DESIGN, FABRICATION, AND CHARACTERIZATION OF AFM TIPS FOR TENSIONS MEASUREMENT AND MANIPULATION OF FLUID INTERFACES

Marta Jole Ildelfonsa Airaghi Leccardi

Dynamic wetting phenomena lack of a proper qualitative and quantitative characterization, especially at the micro and nanoscale. The project focuses on the design and fabrication of AFM tips capable of measuring forces and energies involved in wetting phen ...

2015

A 3D moving mesh Finite Element Method for two-phase flows

John Richard Thome, Navid Borhani, Gustavo Rabello Dos Anjos

A 3D ALE Finite Element Method is developed to study two-phase flow phenomena using a new discretization method to compute the surface tension forces. The computational method is based on the Arbitrary Lagrangian-Eulerian formulation (ALE) and the Finite E ...

Elsevier2014

Ni2P enhances the activity and durability of the Pt anode catalyst in direct methanol fuel cells

Xile Hu, Ligang Feng

Pt is the state-of-the-art anode catalyst in direct methanol fuel cells. Here we report that Ni2P promotes the activity and stability of Pt in electrochemical methanol oxidation. Nanoparticles of Ni2P and Pt were co-deposited on a carbon support and their ...

Royal Society of Chemistry2014

The gas-liquid surface tension of argon: A reconciliation between experiment and simulation

Dominic John Tildesley

We present a simulation of the liquid-vapor interface of argon with explicit inclusion of the three-body interactions. The three-body contributions to the surface tension are calculated using the Kirkwood-Buff approach. Monte Carlo calculations of the long ...

Amer Inst Physics2014

In the context of climate change mitigation, different alternatives to reduce the atmospheric CO2 emissions are; increasing the efficiency, switching to renewable resource and reduce emissions from fossil resources by CO2 capture and storage (CCS) . Hydrog ...

2012

Preparation and characterization of nanocomposite polyelectrolyte membranes based on Nafion (R) ionomer and nanocrystalline hydroxyapatite

Mohammad Mahdi Hasani-Sadrabadi, Fatemeh Sadat Majedi

In this study nanocrystalline hydroxyapatite (nHA) was synthesized and characterized by means of FT-IR, XRD and TEM techniques and a series of proton exchange membranes based on Nafion (R) and nHA were fabricated via solvent casting method. Thermogravimetr ...

2011

Parallel Molecular Dynamics with Irregular Domain Decomposition

The spatial domain of Molecular Dynamics simulations is usually a regular box that be easily divided in subdomains for parallel processing. Recent efforts aimed at simulating complex biological systems, like the blood flow inside arteries, require the exec ...

Cambridge University Press2011

An Improved CFD Tool to Simulate Adiabatic and Diabatic Two-Phase Flows

Bogdan Alexandru Nichita

With increasing computer capabilities, numerical modeling of two-phase flows has developed significantly over the last few years. Although there are two main categories, namely 'one' fluid and 'two' fluid methods, the 'one' fluid methods are more commonly ...

EPFL2010