Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 581-600 of 854
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Improvement of CO Tolerance of Proton Exchange Membrane Fuel Cell by an Air-Bleeding Technique
(The American Society of Mechanical Engineers (ASME), 2008)This study investigates the improvement of proton exchange membrane fuel cell (PEMFC) carbon monoxide by periodic air dosing. The carbon monoxide in the fuel gas leads to a significant loss ... -
Experimental Results of a PEM System Operated on Hydrogen and Reformate
(The American Society of Mechanical Engineers (ASME), 2008)The main objective of this study is to evaluate the performance of a proton exchange membrane (PEM) fuel cell generator operating for residential applications. The fuel cell performance has ... -
Macroscopic Modeling of a PEFC System Based on Equivalent Circuits of Fuel and Oxidant Supply
(The American Society of Mechanical Engineers (ASME), 2008)In this paper, a polymer electrolyte fuel cell system is modeled in order to investigate the following operational modes: transient and nominal operations and rejuvenation process. As a preliminary ... -
Measuring Open Circuit Voltage in a Glucose Alkaline Fuel Cell Operated as a Continuous Stirred Tank Reactor
(The American Society of Mechanical Engineers (ASME), 2008)Open circuit voltage is an important parameter of fuel cells. Prior works have demonstrated that open cell voltages of alkaline fuel cells fueled with glucose reach saturation at high glucose ... -
A Nonisothermal PEM Fuel Cell Model Including Two Water Transport Mechanisms in the Membrane
(The American Society of Mechanical Engineers (ASME), 2008)A dynamic two-phase flow model for proton exchange membrane fuel cells is presented. The two-dimensional model includes the two-phase flow of water (gaseous and liquid) in the gas diffusion ... -
Micromachined Methanol Reformer for Portable PEM Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2008)Fabrication procedures for a micromethanol reformer including catalyst preparation, coating, and patterning on a wafer are described. Cu-based catalyst was prepared by coprecipitation method. The ... -
A Detailed Three-Dimensional Simulation of an IP-SOFC Stack
(The American Society of Mechanical Engineers (ASME), 2008)A typical integrated-planar solid oxide fuel cell (IP-SOFC) consists of modules with series connected electrochemical cells printed on their outer surfaces. Oxygen is supplied to the cathodes ... -
Study of the Rate Limiting Step of the Cathodic Process in Anode Supported Solid Oxide Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2008)The oxygen reduction (OR) mechanism at the Sr-doped LaMnO3 (LSM) and yttria stabilized zirconia (YSZ) composite cathode for high temperature solid oxide fuel cells is still uncertain, despite ... -
Control-Oriented Modeling and Analysis of Air Management System for Fuel Reforming Fuel Cell Vehicle
(The American Society of Mechanical Engineers (ASME), 2008)With the purpose of meeting the specifically restrictive requirements of fuel reforming fuel cell vehicle, this paper brings into focus the issues of the transient operation of fuel cell systems ... -
Influence of the Temperature on Oxygen Reduction on SOFC Composite Electrodes: Theoretical and Experimental Analysis
(The American Society of Mechanical Engineers (ASME), 2008)Experimental data on half-cells consisting of YSZ electrolyte pellets and slurry-coated cathodes, and a simplified theoretical model were used to give an insight into the kinetics of oxygen ... -
Development of a Cylindrical Shape Self-Breathing Mini Fuel Cell Stack
(The American Society of Mechanical Engineers (ASME), 2008)This paper presents the work on the development of a self-breathing mini fuel cell stack. The diameter of the five-cell stack is same as that of a D-size battery, but the length is half ... -
Fuel Economy and Emission Performance of Fuel Cell-Based Diesel HEVs
(The American Society of Mechanical Engineers (ASME), 2008)The fuel economy and emission advantages of diesel-electric hybrid powertrain modifications and an auxiliary fuel cell subsystem over those of a conventional midsize crossover SUV are discussed. ... -
Erratum: “Quality Assurance and Solid Oxide Fuel Cell Testing at Forschungszentrum Jülich” [Journal of Fuel Cell Science and Technology, 2007, 4(2), pp. 194–202]
(The American Society of Mechanical Engineers (ASME), 2008)There was an error in Fig. 2. The correct version appears below. -
Demonstration of a 4-Cells SOFC Stack Under Different Experimental Conditions
(The American Society of Mechanical Engineers (ASME), 2008)Forschungszentrum Juelich (FZJ) has developed over the past years a well-known SOFC stack technology for a planar cell configuration. 1.5mm thick anode supported large-area cells based on a ... -
Thermodynamic Analysis of Direct Steam Reforming of Ethanol in Molten Carbonate Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2008)Fuel cell as molten carbonate fuel cell (MCFC) operates at high temperatures. Thus, cogeneration processes may be performed, generating heat for its own process or for other purposes of steam ... -
Ag–Cu–Ti Braze Materials for Sealing SOFCs
(The American Society of Mechanical Engineers (ASME), 2008)Two Ag–Cu–Ti brazing alloy compositions were studied as gas seals for solid oxide fuel cells (SOFCs). Yttria-stabilized zirconia pellets were bonded using Ag–35.25Cu–1.75Ti (Cusil-ABA) or Ag–20.1Cu–1.0Ti ... -
Protective Coatings of Metallic Interconnects for IT-SOFC Application
(The American Society of Mechanical Engineers (ASME), 2008)The development of high-performing planar solid oxide fuel cell (SOFC) stacks operating at intermediate temperature (700–850°C) is based on thin-electrolyte anode supported cells (ASCs) and ... -
Optimal Design of Current Takeoff in Bus Bars for Tubular Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2008)The technology of tubular solid oxide fuel cells of cylindrical geometry has advanced enough such that several demonstration units are currently being tested. This paper presents a simple ... -
One-Dimensional Model of a Tubular Solid Oxide Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2008)In this paper, a detailed model of a solid oxide fuel cell (SOFC) tube is presented. The SOFC tube is discretized along its longitudinal axis. Detailed models of the kinetics of the shift ... -
Test Results and Efficiency Estimation of 1.2MPa Pressurized MCFC Module
(The American Society of Mechanical Engineers (ASME), 2008)A module part of a 7MW class centralized molten carbonate fuel cell/gas turbine (GT) combined system has been tested. Since the designed (GT) working pressure is 1.2MPa, the operating pressure ...