| Description |
1 online resource (xvi, 366 pages) : illustrations (some color) |
| Contents |
Front Cover; Analytical Modeling of Fuel Cells; Copyright; Contents; Preface to the First Edition; Preface to the Second Edition; Introduction; Dimensionless variables; Maple codes; 1 Fuel cell basics; 1.1 Fuel cell thermodynamics; 1.1.1 The physics of the fuel cell effect; 1.1.2 Open-circuit voltage; 1.1.3 Nernst equation; 1.1.4 Temperature dependence of open-circuit voltage; 1.2 Potentials in a fuel cell; 1.3 Rate of electrochemical reactions; 1.3.1 Butler-Volmer equation; 1.3.2 Butler-Volmer and Nernst equations; 1.3.3 Tafel equation; 1.4 Mass transport in fuel cells |
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1.4.1 Overview of mass transport processes1.4.2 Stoichiometry and utilization; 1.4.3 Quasi-2D approximation; 1.4.4 Mass conservation equation in the channel; 1.4.5 Flow velocity in the channel; 1.4.6 Mass transport in gas diffusion/backing layers; Fick's diffusion; Stefan-Maxwell diffusion; 1.4.7 Mass transport in catalyst layers; 1.4.8 Proton and water transport in membrane; 1.5 Sources of heat in a fuel cell; 1.6 Types of cells considered in this book; 1.6.1 Polymer electrolyte fuel cells (PEFCs); 1.6.2 Direct methanol fuel cells (DMFCs); 1.6.3 Solid oxide fuel cells (SOFCs) |
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2 Catalyst layer performance2.1 Basic equations; 2.1.1 The general case; 2.1.2 First integral; 2.2 Ideal oxygen and proton transport; 2.3 Ideal oxygen transport; 2.3.1 Basic equations; 2.3.2 Integral of motion; 2.3.3 Equation for proton current; 2.3.4 Low cell current; 2.3.5 High cell current; 2.3.6 Polarization curve; 2.3.7 Condition of negligible oxygen transport loss; 2.4 Ideal proton transport; 2.4.1 Basic equations; 2.4.2 The x-shapes and polarization curve; 2.4.3 Large zeta; 2.4.4 Small zeta; 2.5 Optimal oxygen diffusion coef cient; 2.5.1 Reduction of the full system |
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2.5.2 Optimal oxygen diffusivity2.6 Complete polarization curve of a PEMFC; 2.6.1 Model equations; 2.7 Gradient of catalyst loading; 2.7.1 Model; 2.7.2 Polarization curve; 2.8 DMFC cathode and mixed potential; 2.8.1 Model; Basic equations; Boundary conditions; First integral; 2.8.2 Mixed potential; 2.9 DMFC anode; 2.9.1 The rate of methanol oxidation; 2.9.2 Basic equations and the conservation law; 2.9.3 The general form of the polarization curve; 2.9.4 Small variation of overpotential in the active layer; 2.9.5 Active layer of variable thickness; 2.10 Heat balance in the catalyst layer |
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2.10.1 Heat transport equation in the CL2.10.2 Reduction to boundary condition; 2.10.3 Solution to the heat transport equation; 2.11 Remarks on Chapter 2; 3 One-dimensional model of a fuel cell; 3.1 Voltage loss due to oxygen transport in the GDL; 3.2 One-dimensional polarization curve of a cell; 3.2.1 Fast oxygen transport in the CCL; 3.2.2 General equation for the PEMFC polarization curve; Polarization curve tting; 3.3 One-dimensional model of DMFC; 3.3.1 Feed molecule concentration in the active layers; Methanol; Oxygen; 3.3.2 One-dimensional polarization curve of DMFC |
| Summary |
Analytical Modelling of Fuel Cells, Second Edition, is devoted to the analytical models that help us understand the mechanisms of cell operation. The book contains equations for the rapid evaluation of various aspects of fuel cell performance, including cell potential, rate of electrochemical reactions, rate of transport processes in the cell, and temperature fields in the cell, etc. Furthermore, the book discusses how to develop simple physics-based analytical models. A new chapter is devoted to analytical models of PEM fuel cell impedance, a technique that exhibits explosive growth potential. Finally, the book contains Maple worksheets implementing some of the models discussed. Includes simple physics-based equations for the fuel cell polarization curveProvides analytical solutions for fuel cell impedanceIncludes simple equations for calculation of temperature shapes in fuel cellsIntroduces physical descriptions of the basic transport and kinetic phenomena in fuel cells of various types |
| Bibliography |
Includes bibliographical references and index |
| Notes |
Online resource; title from digital title page (viewed on January 15, 2020) |
| Subject |
Fuel cells -- Mathematical models
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TECHNOLOGY & ENGINEERING -- Mechanical.
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Fuel cells -- Mathematical models
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| Genre/Form |
Electronic books
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| Form |
Electronic book
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| ISBN |
9780444642905 |
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0444642900 |
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9780444642226 |
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0444642226 |
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