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Skip to Search Results- 2Pant, Lalit M
- 1Balen, Chad A
- 1Bhaiya,Madhur
- 1Dietrich, Nicholas H
- 1Dobson, Peter
- 1Domican, Kailyn P
- 3Finite-element-method
- 3Polymer electrolyte fuel cells
- 2Fuel cell
- 2Inkjet printing
- 2Membrane electrode assembly
- 2Open-source
Results for "supervisors_tesim:"Secanell, Marc (Mechanical Engineering)""
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Fall 2016
Polymer electrolyte fuel cells (PEFCs) operate with a ternary mixture of fuel and reactants. The majority of numerical models in the literature, including the in-house Open-source Fuel Cell Simulation Toolbox (OpenFCST) software, use Fick’s law of diffusion which is only valid for binary...
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Estimation of relative transport properties of fuel cell and electrolyzer transport layers by pore network and continuum based direct simulations
DownloadSpring 2020
Improvements in the imaging techniques have enabled the capturing of images with high resolution, thereby permitting the reconstruction of complex porous media that can be analyzed by computer simulations. The two most popular methods for numerically analyzing transport in porous media are pore...
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A MIXED WETTABILITY PORE SIZE DISTRIBUTION MODEL FOR THE ANALYSIS OF WATER TRANSPORT IN PEMFC MATERIALS
DownloadFall 2013
Mateo Villanueva, Pedro Abdiel
Water management on proton exchange membrane fuel cells is one of the biggest issues that stop the effective commercialization of this promising technology. Due to water flooding, the performance of fuel cells decays rapidly at high current densities. To better design fuel cell electrodes, a...
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An open-source two-phase non-isothermal mathematical model of a polymer electrolyte membrane fuel cell
DownloadSpring 2014
A comprehensive open-source two-phase non-isothermal MEA model including the microporous layer and accounting for multi-step reaction kinetics for the ORR and HOR is developed for the first time. The model is integrated into openFCST, an open-source FEM based fuel cell simulation framework. All...
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Fall 2014
An experimental set up based on a diffusion bridge is developed to accurately determine the in-plane and through-plane permeability, Knudsen diffusivity and effective molecular diffusivity of gas diffusion layers used in PEFC. The parameters are estimated under various compression levels in...
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Experimental and Theoretical Investigation of Solar Molten Media Methane Cracking for Hydrogen Production
DownloadFall 2014
Canada is the largest H2 consumer per capita in the world, giving a strong market demand for H2. H2 is commercially produced using steam CH4 reforming, which is energy and CO2 intensive. Solar molten metal CH4 cracking is an alternative zero emissions technology. Solar radiation is focused with...
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Fall 2011
Computer modeling is critical for catalyst layer (CL) design in polymer electrolyte membrane fuel cells. Water-filled and ionomer-filled agglomerate models have been suggested as representations of the CL microstructure. In this thesis, improved water-filled and ionomer-filled agglomerate models...
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Understanding the physical phenomena limiting the inkjet printed PEM water electrolyzer performance
DownloadFall 2022
Polymer electrolyte membrane water electrolysis (PEMWE) are a promising technology to generate hydrogen using electricity and water. The hydrogen can be used to reduce the emission of greenhouse gases in several industrial processes, such as power grid, fertilizer industry, and transportation...
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Analysis of an Open-Cathode Fuel Cell Stack in an Enclosure for Varying Operating Conditions
DownloadSpring 2013
Open-cathode polymer electrolyte fuel cell (PEFC) stacks use hydrogen as a fuel, are a high efficiency power source, and do not produce CO2, NOx, SOx, or particulate matter. When used as a remote power source, the PEFC stack must be protected from adverse environmental conditions. To provide...
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Analyzing Multiphase Flow in Membrane Electrode Assembly Using a Mixed Wettability Mathematical Model
DownloadFall 2018
Improving fuel cell performance at high current density is critical for reducing stack size, cost and weight in automobile applications. A major source of performance losses at high current density is the accumulation of liquid water in the electrode which blocks reactant transport. Studying...