Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 61-80 of 854
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Lattice Boltzmann Modeling of Water Cumulation at the Gas Channel Gas Diffusion Layer Interface in Polymer Electrolyte Membrane Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2014)Several experiments have proved that water in liquid phase can be present at the anode of a PEM fuel cell due to vapor condensation resulting in mass transport losses. Nevertheless, it is not yet well understood where ... -
Energy Saving Evaluation of SOFC Cogeneration Systems With Solar Cell and Battery
(The American Society of Mechanical Engineers (ASME), 2014)The purpose of this study is to evaluate the maximum energysaving potential of residential energy supply systems consisting of a solid oxide fuel cell (SOFC) cogeneration system (CGS) combined with a solar cell (SC) and a ... -
Design Approach for the Development of the Flow Field of Bipolar Plates for a PEMFC Stack Prototype
(The American Society of Mechanical Engineers (ASME), 2014)This work is part of a project whose final aim is the realization of an auxiliary power fuel cell generator. It was necessary to design and develop bipolar plates that would be suitable for this application. Bipolar plates ... -
Adaptive Control of a Nonlinear Fuel Cell Gas Turbine Balance of Plant Simulation Facility
(The American Society of Mechanical Engineers (ASME), 2014)A 300 kW solid oxide fuel cell gas turbine (SOFCGT) power plant simulator is evaluated with the use of a model reference adaptive control (MRAC) scheme, implemented for a set of nonlinear empirical transfer functions. ... -
Effects of Operating Conditions on Direct Methanol Fuel Cell Performance Using Nafion Based Polymer Electrolytes
(The American Society of Mechanical Engineers (ASME), 2014)Systematic experiments were carried out to study the effects of various operating conditions on the performances of a direct methanol fuel cell (DMFC) using Nafion 117 and its modified membranes. The cell performance was ... -
Investigation Into Mechanical Behavior of the Current Collector for the Molten Carbonate Fuel Cell Through Finite Element Analysis Using Hexahedral Mesh Coarsening
(The American Society of Mechanical Engineers (ASME), 2014)The current collector for the molten carbonate fuel cell (MCFC), which is a repeated structure of sheared protrusions, is manufactured from the threestage forming process. For the precise and efficient simulation of the ... -
Comparison of Alkaline Direct Ethanol Fuel Cells With and Without Anion Exchange Membrane
(The American Society of Mechanical Engineers (ASME), 2014)The performance of three alkaline direct ethanol fuel cells (ADEFCs) is investigated. All three use identical anode and cathode electrodes, but one uses an anion exchange membrane (AEM) and the other two use nonpermselective ... -
In Situ Observation of Deformation Behavior of Membrane Electrode Assembly Under Humidity Cycles
(The American Society of Mechanical Engineers (ASME), 2014)The mechanical reliability of the membrane electrode assembly (MEA) in polymer electrolyte fuel cells (PEFCs) is a major concern with respect to fuel cell vehicles. When PEFCs generate power, water is generated. The proton ... -
Robotic Arm for Automated Assembly of Proton Exchange Membrane Fuel Cell Stacks
(The American Society of Mechanical Engineers (ASME), 2014)We present an innovative, inexpensive endeffector, the robot workcell, and the fuel cell components used to demonstrate the automated assembly process of a proton exchange membrane fuel cell stack. The endeffector is capable ... -
SOFC Lifetime Assessment in Gas Turbine Hybrid Power Systems
(The American Society of Mechanical Engineers (ASME), 2014)The adoption of solid oxide fuel cell (SOFC) technology in power generation has been limited, in no small part, by material degradation issues affecting the stack lifetime, and hence, the economic viability. A numeric study ... -
Fuel Composition Transients in Fuel Cell Turbine Hybrid for Polygeneration Applications
(The American Society of Mechanical Engineers (ASME), 2014)Transient impacts on the performance of solid oxide fuel cell/gas turbine (SOFC/GT) hybrid systems were investigated using hardwareintheloop simulations (HiLSs) at a test facility located at the U.S. Department of Energy, ... -
The Comparisons of Electrical Performance and Impedance Spectrum for Two Commercial Cells
(The American Society of Mechanical Engineers (ASME), 2014)A solid oxide fuel cell (SOFC), which is a kind of fuel cell (FC) converting chemical energy into electricity directly without mechanical parts, has potential for the clean and efficient power generation from a wide variety ... -
In Situ and Ex Situ Studies on the Degradation of Pd/C Catalyst for Proton Exchange Membrane Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2014)To investigate the degradation mechanism of the asprepared Pd/C catalyst, in situ and ex situ accelerated stress tests were carried out via potential cycling. Durability tests of the single cells with Pd/C catalysts were ... -
Fuzzy Logic Based Controller for a Grid Connected Solid Oxide Fuel Cell Power Plant
(The American Society of Mechanical Engineers (ASME), 2014)This paper describes a mathematical model of a solid oxide fuel cell (SOFC) power plant integrated in a multimachine power system. The utilization factor of a fuel stack maintains steady state by tuning the fuel valve in ... -
Fuel Cell Diagnostics Using Identification Measurement Theory
(The American Society of Mechanical Engineers (ASME), 2014)The possibility to use instruments of identification measurement theory to solve the problems of diagnostics of fuel cells according to their noise characteristics is considered in this paper. The offered techniques of ... -
Parametric Analysis on Hybrid System of Solid Oxide Fuel Cell and Micro Gas Turbine With CO2 Capture
(The American Society of Mechanical Engineers (ASME), 2014)The solid oxide fuel cell–micro gas turbine hybrid system with CO2 capture seems to be a prospective system with high efficiency and low emissions. Three hybrid systems with/without CO2 capture are designed and simulated ... -
Performance of Proton Exchange Membrane in the Presence of Mg2+
(The American Society of Mechanical Engineers (ASME), 2014)Proton exchange membrane (PEM) fuel cell is regarded as one of the potential renewable energy which may provide a possible longterm solution to reduce carbon dioxide emissions, reduce fossil fuel dependency and increase ... -
Bipolar Plates for PEMFCs
(The American Society of Mechanical Engineers (ASME), 2014)Proton exchange membrane fuel cells (PEMFCs) have many advantages among the various types of fuel cells, such as high energy density, low temperature operation, nearzero pollution, and quick starting. Thereby, PEMFCs have ... -
Air Side Heat Transfer Performance of Louver Fin and Multitube Heat Exchanger for Direct Methanol Fuel Cell Cooling Application
(The American Society of Mechanical Engineers (ASME), 2014)The present work is performed to evaluate the heat transfer performance of a heat exchanger used in a direct methanol fuel cell. Because of material constraints and performance requirements, a louver fin heat exchanger is ... -
On the Synthesis and Characterization of Silica Doped/Sulfonated Poly (2,6 Dimethyl 1,4 Phenylene Oxide) Composite Membranes for Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2014)The objective of this investigation is to study silicadoped/sulfonated poly(2,6dimethyl1,4phenylene oxide) (PPO) composite membranes for operation in hydrogen/oxygen protonexchange membrane fuel cells ranging from room ...