Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 481-500 of 854
-
Numerical Investigation of a Delta High Power Density Cell and Comparison With a Flattened Tubular High Power Density Cell
(The American Society of Mechanical Engineers (ASME), 2010)The thermal, electrical, and fluid flow fields associated with a Siemens Power Generation Inc., Stationary Fuel Cells, flattened tubular high power density (HPD) solid oxide fuel cell (SOFC) ... -
Intermediate Temperature Solid Oxide Fuel Cells With Bi2O3–Eu2O3 Infiltrated La0.8Sr0.2MnO3 Cathodes
(The American Society of Mechanical Engineers (ASME), 2010)The fuel cell performance of the anode supported cell with Eu2O3 doped Bi2O3 infiltrated La0.8Sr0.2MnO3(LSM)–Zr0.92Y0.16O2.08(YSZ) composite cathode, Ni-YSZ anode, and YSZ electrolyte was examined ... -
Flow and Pressure Distribution in Fuel Cell Manifolds
(The American Society of Mechanical Engineers (ASME), 2010)The manifold is an essential part of the fuel cell stack. Evidently, evenly distributed reactants are a prerequisite for an efficient fuel cell stack. In this study, the cathode manifold ability ... -
Development of Ceria Based SOFCs With a High Performance La0.6Sr0.4Co0.2Fe0.8O3−δ–Ce0.9Gd0.1O1.95–Ag Composite Cathode
(The American Society of Mechanical Engineers (ASME), 2010)In this work, a microtubular cell consisting of a thin Ce0.9Gd0.1O1.95 (GDC) electrolyte (thickness: below 10 μm) on a support NiO/GDC anode (1.8 mm outer diameter, 200 μm wall thickness) with ... -
Numerical Simulation of a High Temperature Polymer Electrolyte Membrane Fabrication Process
(The American Society of Mechanical Engineers (ASME), 2010)Cost, durability, and reliability are the major issues hindering the commercialization of polymer electrolyte membrane fuel cells. Electrolyte membranes present in the fuel cell fails under chemical, ... -
Proton Exchange Membrane Fuel Cell High Carbon Monoxide Tolerance Operation Using Pulsed Heating and Pressure Swing
(The American Society of Mechanical Engineers (ASME), 2009)Proton exchange membrane fuel cells (PEMFCs) are attractive power plants for use in many applications, including portable power sources, electric vehicles, and on-site combined power/heat plants. ... -
Influence of Flow Channel Design on the Flow Pressure Drop and the Performance of Direct Methanol Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2009)We investigated the optimum flow channel design for direct methanol fuel cells (DMFCs). Especially, we explored the effect of the pressure drop across the inlet and outlet on the performance ... -
Comparative Study of Membrane Humidifier and Enthalpy Wheel Humidifier for Large Power Fuel Cell System
(The American Society of Mechanical Engineers (ASME), 2009)The performance of membrane humidifier (MH) and enthalpy wheel humidifier (EWH) for a large power proton exchange membrane fuel cell (PEMFC) system is compared using simulations and experiments. ... -
Resistive Spot in a Fuel Cell Stack: Exact Solutions
(The American Society of Mechanical Engineers (ASME), 2009)We report the analytical solution to a problem of voltage and current distribution in a two-cell stack with the small amplitude resistive spot in one of the cells. Voltage disturbance in the ... -
Energy Analysis of a Residential Combined Heat and Power System Based on a Proton Exchange Membrane Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2009)In this work the preliminary results of the research activity regarding the development of a microcogeneration unit prototype based on a proton exchange membrane fuel cell for residential ... -
Synthesis and Characterization of a Composite Membrane for Polymer Electrolyte Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2009)A new proton exchange membrane (PEM) has been fabricated using a novel patented polymer structure modification technology. It has been shown that the new membrane has a higher proton transfer ... -
Thermoeconomic Modeling and Parametric Study of Hybrid Solid Oxide Fuel Cell-Gas Turbine-Steam Turbine Power Plants Ranging From 1.5MWeto10MWe
(The American Society of Mechanical Engineers (ASME), 2009)Detailed thermodynamic, kinetic, geometric, and cost models are developed, implemented, and validated for the synthesis/design and operational analysis of hybrid solid oxide fuel cell (SOFC)-gas ... -
Syngas Production via High-Temperature Coelectrolysis of Steam and Carbon Dioxide
(The American Society of Mechanical Engineers (ASME), 2009)This paper presents results of recent experiments on simultaneous high-temperature electrolysis (coelectrolysis) of steam and carbon dioxide using solid-oxide electrolysis cells. Coelectrolysis is ... -
Surface Scale Formation on Solid Oxide Fuel Cell Proximal Balance of Plant Components
(The American Society of Mechanical Engineers (ASME), 2009)Chromium containing alloys used as solid oxide fuel cell (SOFC) interconnects can generate volatile chrome species that deposit as Cr2O3(s) at the SOFC cathode/electrolyte interface under modest ... -
Experimental Investigation on the Process-Induced Damage of a Direct Methanol Fuel Cell Assembled by the Printed Circuit Board Technique
(The American Society of Mechanical Engineers (ASME), 2009)The printed circuit board (PCB)-based direct methanol fuel cell (DMFC) package is a novel manufacturing and assembly process, which is full potential in mass production, and very limited literatures ... -
Impact of the Temperature Profile on Thermal Stress in a Tubular Solid Oxide Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2009)The knowledge of the stress distribution in the ceramic components of a solid oxide fuel cell (SOFC) is a prerequisite for assessing the risk of failure due to crack formation as well as ... -
Stress-Strain Behavior of Perfluorosulfonic Acid Membranes at Various Temperatures and Humidities: Experiments and Phenomenological Modeling
(The American Society of Mechanical Engineers (ASME), 2009)The constitutive response of perfluorinated sulfonic acid (PFSA) membranes based on tensile testing is investigated, and a phenomenological constitutive model for the elastoplastic flow behavior ... -
A Hybrid Experimental Model of a Solid Oxide Fuel Cell Stack
(The American Society of Mechanical Engineers (ASME), 2009)A multivariable hybrid experimental model of a solid oxide fuel cell stack is developed in this paper. The model consists of an improved radial basis function (RBF) neural network model and ... -
Modeling and Experimental Analyses of a Two-Cell Polymer Electrolyte Membrane Fuel Cell Stack Emphasizing Individual Cell Characteristics
(The American Society of Mechanical Engineers (ASME), 2009)Performance of individual cells in an operating polymer electrolyte membrane (PEM) fuel cell stack is different from each other because of inherent manufacturing tolerances of the cell components ... -
Performances and Degradation Phenomena of Solid Oxide Anode Supported Cells With LSM and LSCF Cathodes: An Experimental Assessment
(The American Society of Mechanical Engineers (ASME), 2009)The performance of solid oxide fuel cells is affected by various polarization losses, usually grouped in Ohmic, activation, and concentration polarizations. Under typical operating conditions, these ...