Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 201-220 of 854
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A Transient Fuel Cell Model to Simulate HTPEM Fuel Cell Impedance Spectra
(The American Society of Mechanical Engineers (ASME), 2012)This paper presents a spatially resolved transient fuel cell model applied to the simulation of high temperature PEM fuel cell impedance spectra. The model is developed using a 2D finite volume ... -
An Analytical Study of Diffusion, Chemical Reaction and Voltage Loss in High-Temperature Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2012)The paper describes a mathematical analysis of multi-component diffusion with chemical reaction in the porous materials of high-temperature solid oxide fuel cells. The objectives are to clarify ... -
Pumpless Fuel Supply Using Pressurized Fuel Regulated by Autonomous Flow-Rate Regulation Valves
(The American Society of Mechanical Engineers (ASME), 2012)A pumpless fuel supply using pressurized fuel with autonomous flow regulation valves is presented. Since micropumps and their control circuitry consume a portion of the electrical power generated ... -
Clean Tech Intellectual Property: Eco-marks, Green Patents, and Green Innovation
(The American Society of Mechanical Engineers (ASME), 2012)Clean Tech Intellectual Property: Eco-marks, Green Patents, and Green Innovation, . Oxford University Press, New York, 2011, 260 pp., $185.00, ISBN: 978-0-19-973709-3 -
Pore Structure Modeling of Flow in Gas Diffusion Layers of Proton Exchange Membrane Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2012)The gas diffusion layer (GDL) in a proton exchange membrane (PEM) fuel cell has a porous structure with anisotropic and non-homogenous properties. The objective of this research is to develop ... -
Development of a Proof-of-Concept Proton Exchange Membrane Fuel Cell Powered Scooter
(The American Society of Mechanical Engineers (ASME), 2012)The objective of this project is to develop a proton exchange membrane (PEM) fuel cell powered scooter with a designed digital controller to regulate the air supply to PEM fuel cell stack. ... -
Analysis of Performance and Thermal-Fluid Characteristics in a Planar Type Solid Oxide Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2012)This work studied internal loss factors (flow rate, pressure, partial pressure, voltage, current, temperature, etc.) in a unit cell and stack of solid oxide fuel cells (SOFC) with different ... -
Development of Direct Methanol Fuel Cell Systems for Material Handling Applications
(The American Society of Mechanical Engineers (ASME), 2012)Direct methanol fuel cells (DMFCs) are attractive for various applications, above all, however, as replacements for batteries or accumulators. They may be used in different power classes. A ... -
Improved CO Tolerance With PtRu Anode Catalysts in ABPBI Based High Temperature Proton Exchange Membrane Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2012)The potential to improve the CO tolerance of a high temperature proton exchange membrane fuel cell (HT-PEMFC) was investigated by introducing a platinum-ruthenium alloy as anode catalyst. The ... -
Investigation of Bubble and Fluid Flow Patterns Within a Column Photobioreactor
(The American Society of Mechanical Engineers (ASME), 2012)This research study investigates bubble and liquid circulation patterns in a vertical column photobioreactor (PBR) both experimentally as well as computationally using computational fluid dynamics ... -
Irradiation Effect of Gamma Ray on Electrical Characteristics of Perfluorosulfonic Acid Polymer Membrane
(The American Society of Mechanical Engineers (ASME), 2012)Perfluorosulfonic acid polymer membranes, such as Nafion®, Aciplex®, and Flemion®, are attracting great attention as electrolyte membranes for fuel cells because they have high proton ... -
The Effect of Inhomogeneous Compression on Water Transport in the Cathode of a Proton Exchange Membrane Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2012)A three-dimensional, multicomponent, two-fluid model developed in the commercial CFD package CFX 13 (ANSYS Inc.) is used to investigate the effect of porous media compression on water transport ... -
Modeling Study of Anode Water Flooding and Gas Purge for PEMFCs
(The American Society of Mechanical Engineers (ASME), 2012)A one-dimensional, dynamic proton exchange membrane fuel cells stack model is developed in this paper, where the transports of reactant and water (in both liquid and vapor phase) are described ... -
Oxygen Partial Pressure Dependence of In Situ X-Ray Absorption Spectroscopy at Co and Fe K-Edge for (La0.6 Sr0.4 )(Co0.2 Fe0.8 )O3–δ
(The American Society of Mechanical Engineers (ASME), 2012)(La0.6 Sr0.4 )(Co0.2 Fe0.8 )O3–δ (LSCF) has been promised as a cathode material of solid oxide fuel cells at intermediate temperatures. Despite the many previous studies of LSCF that have been ... -
Increase in Availability of Solid Oxide Fuel Cells by Means of Parallel Connection of Cells
(The American Society of Mechanical Engineers (ASME), 2012)Fuel cells consist of single cells that are connected in series to form a stack. This increases output voltage and therefore decreases current-dependent power losses, but the electric current ... -
Stack Operation Using Composite Membrane-Electrodes Assemblies at 120Â °C
(The American Society of Mechanical Engineers (ASME), 2012)A 500 W stack operating at medium temperatures was designed, manufactured and tested. Nanocomposite Nafion membranes/electrodes (MEA1-NZr) assemblies, containing a commercial yttria stabilized zirconia ... -
Dynamic Model for Understanding Spatial Temperature and Species Distributions in Internal-Reforming Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2012)Direct internal reformation of methane in solid oxide fuel cells (SOFCs) leads to two major performance and longevity challenges: thermal stresses in the cell due to large temperature gradients ... -
Multiscale Electrical Contact Resistance Between Gas Diffusion Layer and Bipolar Plate in Proton Exchange Membrane Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2012)The contact resistance between gas diffusion layer and bipolar plate in a fuel cell stack is calculated through multiscale contact analysis, which deals with rough surfaces dependent on scales. ... -
An Experimental Study on Micro Proton Exchange Membrane Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2012)This study fabricates a micro proton exchange membrane fuel cell (PEMFC) using micro electro mechanical systems (MEMS) technology. The active area of the membrane is 2 cm × 2 cm (4 cm2 ... -
Performance Improvement of a Circular MCFC Through Optimal Design of the Fluid Distribution System
(The American Society of Mechanical Engineers (ASME), 2012)In this paper, the prototype of a circular molten carbonate fuel cell (MCFC) built in the laboratories of FN SpA Nuove Tecnologie e Servizi Avanzati is analyzed using a tridimensional computational ...