Journal of Fuel Cell Science and Technology: Recent submissions

Now showing items 821-840 of 854

    • Plasma-Polymerized Proton-Conducting Membranes for Reducing Methanol Permeation in DMFCs 

      D. Gruber; N. Ponath; J. Müller (The American Society of Mechanical Engineers (ASME), 2005)
      A plasma polymerization process for preparing proton-conducting electrolyte membranes from tetrafluoroethylene and water is presented. They can be deposited on different substrates, e.g., gas diffusion ...

    • Effect of Operating Parameters on the DMFC Performance 

      Guo-Bin Jung; Ay Su; Fang-Bor Weng; Cheng-Hsin Tu (The American Society of Mechanical Engineers (ASME), 2005)
      Methanol crossover largely affects the efficiency of power generation in the direct methanol fuel cell. As the methanol crosses over through the membrane, the methanol oxidizes at the cathode, ...

    • Pt3Cr(111) Alloy Effect on the Reversible Potential of OOH(ads) Formation from O2(ads) relative to Pt(111) 

      Jérôme Roques; Alfred B. Anderson (The American Society of Mechanical Engineers (ASME), 2005)
      A quantum mechanical study of O2 and OOH adsorption on Pt(111) and on a Pt monolayer on Pt3Cr(111) is presented. The calculated adsorption energies are used to predict the reversible potential ...

    • Solid Oxide Fuel Cell Development by Using Novel Plasma Spray Techniques 

      Xinqing Ma; Jinxiang Dai; Heng Zhang; Jeff Roth; T. Danny Xiao; David E. Reisner (The American Society of Mechanical Engineers (ASME), 2005)
      Two plasma spray techniques have been developed to produce membrane-type solid oxide fuel cell (SOFC) units with the advantages of consecutive integrated cell fabrication, high efficiency, good ...

    • Residential Experience with Proton Exchange Membrane Fuel Cell Systems for Combined Heat and Power 

      Darrell D. Massie; Cheryl A. Massie; Daisie D. Boettner (The American Society of Mechanical Engineers (ASME), 2005)
      As part of a one-year Department of Defense demonstration project, proton exchange membrane fuel cell systems have been installed at three residences to provide electrical power and waste heat ...

    • Parameter Optimization on Combined Gas Turbine-Fuel Cell Power Plants 

      Rainer Kurz (The American Society of Mechanical Engineers (ASME), 2005)
      A thermodynamic model for a gas turbine-fuel cell hybrid is created and described in the paper. The effects of gas turbine design parameters such as compressor pressure ratio, compressor ...

    • Performance Measurements of Solid-Oxide Electrolysis Cells for Hydrogen Production 

      J. E. O’Brien; J. J. Hartvigsen; S. Elangovan; C. M. Stoots; J. S. Herring; P. A. Lessing (The American Society of Mechanical Engineers (ASME), 2005)
      An experimental study has been completed to assess the performance of single solid-oxide electrolysis cells operating over a temperature range of 800 to 900°C. The experiments were performed ...

    • Analysis of Water Transport in Proton Exchange Membranes Using a Phenomenological Model 

      P. C. Sui; Ned Djilali (The American Society of Mechanical Engineers (ASME), 2005)
      An investigation of water transport across the membrane of a proton exchange membrane fuel cell is performed to gain further insight into water management issues and the overall behavior of a ...

    • Spectral Radiative Heat Transfer Analysis of the Planar SOFC 

      David L. Damm; Andrei G. Fedorov (The American Society of Mechanical Engineers (ASME), 2005)
      Thermo-mechanical failure of components in planar-type solid oxide fuel cells (SOFCs) depends strongly on the local temperature gradients at the interfaces of different materials. Therefore, it ...

    • Chemical Treatment Method for the Aluminum Bipolar Plates of PEM Fuel Cells 

      Shuo-Jen Lee; Ching-Han Huang; Yu-Pang Chen; Yen-Ming Chen (The American Society of Mechanical Engineers (ASME), 2005)
      In this paper, a chemical treatment method was developed to process the aluminum bipolar plates of proton electrolyte membrane fuel cells. During the surface treatment process, the chemical in ...

    • PEM Fuel Cell Dynamic Model With Phase Change Effect 

      X. Xue; J. Tang (The American Society of Mechanical Engineers (ASME), 2005)
      In this research, a system-level dynamic model accounting for the phase change effect is developed for polymer electrolyte fuel cells (PEMFCs). This model can illustrate the complicated transient ...

    • Exergetic Optimization of a PEM Fuel Cell for Domestic Hot Water Heater 

      M. H. Saidi; A. Abbassi; M. A. Ehyaei (The American Society of Mechanical Engineers (ASME), 2005)
      In this paper, a 5kW PEM fuel cell including burner, steam reformer, and water heater for domestic application has been considered. Water is used for cooling of the fuel cell. Cold water is ...

    • Mass/Charge Transfer in Mono-Block-Layer-Built-Type Solid-Oxide Fuel Cells 

      J. J. Hwang (The American Society of Mechanical Engineers (ASME), 2005)
      The mass/charge transfer characteristics in a simulated MOLB (mono-block-layer built)-type solid-oxide fuel cells have been studied numerically. The transport phenomena within a linear MOLB module, ...

    • Artificial Neural Network Modeling of PEM Fuel Cells 

      Shaoduan Ou; Luke E. Achenie (The American Society of Mechanical Engineers (ASME), 2005)
      Artificial neural network (ANN) approaches for modeling of proton exchange membrane (PEM) fuel cells have been investigated in this study. This type of data-driven approach is capable of inferring ...

    • Theoretical Calculation of the Electrical Potential at the Electrode/Electrolyte Interfaces of Solid Oxide Fuel Cells 

      Ismail Celik; S. Raju Pakalapati; Maria D. Salazar-Villalpando (The American Society of Mechanical Engineers (ASME), 2005)
      A new semi-empirical model is formulated to calculate the potential differences at the cathode/electrolyte and electrolyte/anode interfaces separately for solid oxide fuel cells. The new model is ...

    • Evaluation of an Alkaline Fuel Cell for Multifuel System 

      A. Verma; A. K. Jha; S. Basu (The American Society of Mechanical Engineers (ASME), 2005)
      The performance of an alkaline fuel cell (AFC) is investigated using three different fuels, e.g., methanol, ethanol, and sodium borohydride. Pt∕C∕Ni was used as anode, whereas MnO2∕C∕Ni was used ...

    • Review of the Computational Fluid Dynamics Modeling of Fuel Cells 

      L. Ma; D. B. Ingham; M. Pourkashanian; E. Carcadea (The American Society of Mechanical Engineers (ASME), 2005)
      This paper presents a review of the current situation in the computational fluid dynamics (CFD) modeling of fuel cells and highlights the significant challenges that lie ahead in the development ...

    • PVD Coated Bipolar Plates for PEM Fuel Cells 

      Shuo-Jen Lee; Ching-Han Huang; Yu-Pang Chen; Chen-Te Hsu (The American Society of Mechanical Engineers (ASME), 2005)
      Aluminum was considered a good candidate material for bipolar plates of the polymer electrolyte membrane (PEM) fuel cells due to its low cost, light weight, high strength and good manufacturability. ...

    • Numerical Predictions of Transport Phenomena in a Proton Exchange Membrane Fuel Cell 

      Yongming Lin; Steven B. Beale (The American Society of Mechanical Engineers (ASME), 2005)
      Transport phenomena play an important role in the performance of the proton exchange membrane fuel cell. Water generated by electrochemical reactions and transported by osmotic drag and back ...

    • Multiscale Parametric Studies on the Transport Phenomenon of a Solid Oxide Fuel Cell 

      C. H. Cheng; Y. W. Chang; C. W. Hong (The American Society of Mechanical Engineers (ASME), 2005)
      This paper conducts a multiscale parametric study of temperature and composition effects on the transport phenomenon of a solid oxide fuel cell (SOFC). The molecular dynamics technique was ...