Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 541-560 of 854
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Design, Fabrication, and Performance Analysis of a Passive Micro-PEM-Fuel-Cell Stack
(The American Society of Mechanical Engineers (ASME), 2009)A micro-fuel-cell stack of six cells with an active area of 2.73 cm2 and 2.5 W output power has been designed and fabricated in-house. It can go with mini hydrogen storage and provide enough ... -
Determination of an Empirical Transfer Function of a Solid Oxide Fuel Cell Gas Turbine Hybrid System Via Frequency Response Analysis
(The American Society of Mechanical Engineers (ASME), 2009)This paper presents the study of the effect variations in the heat effluence from a solid oxide fuel cell (SOFC) has on a gas turbine hybrid configuration. The SOFC is simulated through ... -
Innovative Design of an Air-Breathing Proton Exchange Membrane Fuel Cell With a Piezoelectric Device
(The American Society of Mechanical Engineers (ASME), 2009)This paper presents a three-dimensional transitional model to describe an innovative design for an air-breathing proton exchange membrane fuel cell (AB-PEMFC) with a microdiaphragm actuated by a ... -
Polarization Resistances of (Ln1−xSrx)CoO3 (Ln=Pr, Nd, Sm, and Gd x=0, 0.3, 0.5, 0.7, and 1) as Cathode Materials for Intermediate Temperature-operating Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2009)This study focuses on cathode performances of (Ln1−xSrx)CoO3−δ (Ln=Pr, Nd, Sm, and Gd, x=0, 0.3, 0.5, 0.7, and 1) for intermediate temperature-operating solid oxide fuel cells (IT-SOFCs, ... -
Joining of Metallic Cap and Anode-Supported Tubular Solid Oxide Fuel Cell by Induction Brazing Process
(The American Society of Mechanical Engineers (ASME), 2009)The anode-supported tubular solid oxide fuel cells were fabricated and joined onto the metal cap (SUS430) for current collecting and sealing by using the induction brazing process. Among five ... -
Studying the Water Transport in a Proton Exchange Membrane Fuel Cell by Neutron Radiography and Relative Humidity Sensors
(The American Society of Mechanical Engineers (ASME), 2009)Water management in a fuel cell is essential to ensure cell performance and life. In this study, a special single cell was designed for the purpose of detecting liquid water and water vapor ... -
Cathode Properties of SmxSr1−x(Co,Fe,Ni)O3−δ/Sm0.2Ce0.8O1.9 Composite Material for Intermediate Temperature-Operating Solid Oxide Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2009)Perovskite-structured cathode material containing samarium (Sm) has been recognized as a promising electrode material due to its high electrocatalytic property for intermediate temperature-operating ... -
System Architectures for Solid Oxide Fuel Cell-Based Auxiliary Power Units in Future Commercial Aircraft Applications
(The American Society of Mechanical Engineers (ASME), 2009)Recent advancements in fuel cell technology through the auspices of the Department of Energy, the National Aeronautics and Space Administration, and industry partners have set the stage for the ... -
Experimental Study of Air-Water Interaction in Presence of Powdered Wax Inside Simulated Gas Distribution Channel of a Proton Exchange Membrane Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2009)Low temperature fuel cells such as proton exchange membrane fuel cells are being currently developed to run cars and buses. Water management in these fuel cells is a key issue that needs to ... -
On the Use of Pressure-Loaded Blister Tests to Characterize the Strength and Durability of Proton Exchange Membranes
(The American Society of Mechanical Engineers (ASME), 2009)The use of pressurized blister specimens to characterize the biaxial strength and durability of proton exchange membranes (PEMs) is proposed, simulating the biaxial stress states that are induced ... -
Oxidation Behavior of Various Metallic Alloys for Solid Oxide Fuel Cell Interconnect
(The American Society of Mechanical Engineers (ASME), 2009)Ten iron-based alloys and nickel-based alloys were subjected to oxidation treatment in a hot air environment for various periods. In this investigation, all alloys contained a certain amount of ... -
Fuel Cells as an Alternative to Cold Ironing
(The American Society of Mechanical Engineers (ASME), 2009)As a result of increased concern regarding the harmful effects of airborne pollutants, some seaports are taking steps to require that visiting ships reduce the emissions from onboard power-producing ... -
A Numerical Investigation Into the Interaction Between Current Flow and Fuel Consumption in a Segmented-in-Series Tubular SOFC
(The American Society of Mechanical Engineers (ASME), 2009)A typical segmented-in-series tubular solid oxide fuel cell (SOFC) consists of flattened ceramic support tubes with rows of electrochemical cells fabricated on their outer surfaces connected in ... -
Two-Phase Flow Maldistribution and Mitigation in Polymer Electrolyte Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2009)Flow maldistribution among polymer electrolyte fuel-cell (PEFC) channels is of concern because this leads to nonuniform distributions of fuel and oxidizer, which in turn result in nonuniform ... -
Investigation of Elastomer Graphite Composite Material for Proton Exchange Membrane Fuel Cell Bipolar Plate
(The American Society of Mechanical Engineers (ASME), 2009)The bipolar plate is an important and integral part of the proton exchange membrane (PEM) fuel cell and PEM fuel cell stacks. Currently bipolar plates represent more than 80% by weight and ... -
Hybrid Simulation Facility Based on Commercial 100 kWe Micro Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2009)A new high temperature fuel cell-micro gas turbine physical emulator has been designed and installed in the framework of the European Integrated Project “FELICITAS” at the Thermochemical Power ... -
Use of Optimal Controls to Mitigate Competing Performance Objectives in a Polymer Electrolyte Membrane Fuel Cell System
(The American Society of Mechanical Engineers (ASME), 2009)This paper describes a model predictive control (MPC) scheme as implemented on a polymer electrolyte membrane fuel cell system. The goal of this work is to reduce parasitic power consumption ... -
Design and Testing of a Unitized Regenerative Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2009)A unitized regenerative fuel cell (URFC) is designed and tested for energy conversion and storage under the support of a NASA funded student design project. The URFC is of the proton exchange ... -
Electrospun Nafion Nanofiber for Proton Exchange Membrane Fuel Cell Application
(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, ... -
Fundamental Research Needs in Combined Water and Thermal Management Within a Proton Exchange Membrane Fuel Cell Stack Under Normal and Cold-Start Conditions
(The American Society of Mechanical Engineers (ASME), 2009)Each fuel cell component of a proton exchange membrane fuel cell (PEMFC) used in automotive application operates most effectively (from performance and durability standpoints) within specific ...