Preface | p. v |
Contents | p. vii |
Units and conversion factors | p. xii |
Introduction | p. 1 |
Possible role of fuel cells and hydrogen | p. 1 |
Hydrogen | p. 5 |
Production of hydrogen | p. 5 |
Steam reforming | p. 6 |
Partial oxidation, autothermal and dry reforming | p. 10 |
Water electrolysis: reverse fuel cell operation | p. 11 |
Gasification and woody biomass conversion | p. 21 |
Biological hydrogen production | p. 26 |
Photosynthesis, Bio-hydrogen production pathways, Hydrogen production by purple bacteria, Fermentation and other processes in the dark, Industrial-scale production of bio-hydrogen | |
Photodissociation | p. 43 |
Direct thermal or catalytic splitting of water | p. 50 |
Issues related to scale of production | p. 51 |
Centralised hydrogen production | p. 51 |
Distributed hydrogen production | p. 52 |
Vehicle on-board fuel reforming | p. 52 |
Production of methanol, Methanol-to-hydrogen conversion | |
Hydrogen conversion overview | p. 59 |
Uses as an energy carrier | p. 59 |
Uses, as an energy storage medium | p. 60 |
Combustion uses | p. 60 |
Stationary fuel cell uses | p. 64 |
Fuel cell uses for transportation | p. 64 |
Direct uses | p. 64 |
Hydrogen storage options | p. 65 |
Compressed gas storage | p. 66 |
Liquid hydrogen storage | p. 70 |
Hydride storage | p. 71 |
Chemical thermodynamics, Metal hydrides, Complex hydrides, Modelling metal hydrides Cryo-adsorbed gas storage in carbon materials | p. 89 |
Other chemical storage options | p. 90 |
Comparing storage options | p. 90 |
Hydrogen transmission | p. 92 |
Container transport | p. 92 |
Pipeline transport | p. 93 |
Problems and discussion topics | p. 94 |
Fuel cells | p. 95 |
Basic concepts | p. 95 |
Electrochemistry and thermodynamics of fuel cells | p. 95 |
Electrochemical device definitions, Fuel cells | |
Modelling aspects | p. 106 |
Quantum chemistry approaches | p. 111 |
Hartree-Fock approximation, Basis sets and molecular orbitals, Higher interactions and excited states: Møller-Plesset perturbation theory or density function phenome-nological approach ? | |
Application to water splitting or fuel cell performance at a metal surface | p. 122 |
Flow and diffusion modelling | p. 135 |
The temperature factor | p. 139 |
Molten carbonate cells | p. 140 |
Solid oxide cells | p. 143 |
Acid and alkaline cells | p. 158 |
Proton exchange membrane cells | p. 163 |
Current collectors and gas delivery system | p. 165 |
Gas diffusion layers | p. 169 |
Membrane layer | p. 175 |
Catalyst action | p. 181 |
Overall performance | p. 186 |
High-temperature and reverse operation | p. 187 |
Degradation and lifetime | p. 190 |
Direct methanol and other non-hydrogen cells | p. 191 |
Biofuel cells | p. 197 |
Problems and discussion topics | p. 200 |
Systems | p. 201 |
Passenger cars | p. 201 |
Overall system options for passenger cars | p. 201 |
PEM fuel cell cars | p. 204 |
Performance simulation | p. 207 |
Other road vehicles | p. 225 |
Ships, trains and airplanes | p. 228 |
Power plants and stand-alone systems | p. 233 |
Building-integrated systems | p. 236 |
Portable and other small-scale systems | p. 240 |
Problems and discussion topics | p. 244 |
Implementation scenarios | p. 245 |
Infrastructure requirements | p. 245 |
Storage infrastructure | p. 245 |
Transmission infrastructure | p. 248 |
Local distribution | p. 249 |
Filling stations | p. 250 |
Building-integrated concepts | p. 25l |
Safety and norm issues | p. 252 |
Safety concerns | p. 252 |
Safety requirements | p. 255 |
National and international standards | p. 259 |
Scenarios based on fossil energy | p. 260 |
Scenario techniques and demand modelling | p. 260 |
Global clean fossil scenario | p. 270 |
Clean fossil technologies, Fossil resource considerations, The fossil scenario, Evaluation of the clean fossil scenario | |
Scenarios based on nuclear energy | p. 294 |
History and present concerns | p. 294 |
Safe nuclear technologies | p. 297 |
Inherently safe designs, Technical details of energy amplifier, Nuclear resources assessment, Safe nuclear scenario construction, Evaluation of the safe nuclear scenario | |
Scenarios based on renewable energy | p. 317 |
Global renewable energy scenarios | p. 318 |
Detailed national renewable energy scenario | p. 323 |
Danish energy demand in 2050, Available renewable resources, Construction of 2050 scenarios for Denmark, Centralised scenario, Decentralised scenario, Assessment of renewable energy scenarios | |
New regional scenarios | p. 353 |
Problems and discussion topics | p. 359 |
Social implications | p. 361 |
Cost expectations | p. 361 |
Hydrogen production costs | p. 361 |
Fuel cell costs | p. 362 |
Hydrogen storage costs | p. 368 |
Infrastructure costs | p. 368 |
System costs | p. 369 |
Life-cycle analysis of environmental and social impacts 372 | |
Purpose and methodology of life-cycle analysis | p. 373 |
Life-cycle analysis of hydrogen production | p. 375 |
Conventional production by steam reforming, Production by electrolysis, Direct bio-production of hydrogen from cyanobacteria or algae, Impacts from use of genetically engineered organisms, Hydrogen from fermentation of biomass | |
Life-cycle analysis of fuel cells | p. 381 |
SOFCs and MCFCs, PEM fuel cells | |
Life-cycle comparison of conventional passenger car and passenger car with fuel cells | p. 384 |
Environmental impact analysis, Social and economic impact analysis, Overall assessment | |
Life-cycle assessment of other vehicles for transportation | p. 396 |
Life-cycle assessment of hydrogen storage and infrastructure | p. 398 |
Life-cycle assessment of hydrogen systems | p. 399 |
Uncertainties | p. 400 |
Problems and discussion topics | p. 401 |
Conclusion: a conditional outcome | p. 403 |
Opportunities | p. 403 |
Obstacles | p. 405 |
The competition | p. 407 |
The way forward | p. 417 |
Hydrogen storage in renewable energy systems | p. 417 |
Fuel cell vehicles | p. 418 |
Building-integrated fuel cells | p. 420 |
Fuel cells in portable equipment | p. 421 |
Fuel cells in centralised power production | p. 422 |
Efficiency considerations | p. 423 |
How much time do we have? | p. 428 |
The end, and a beginning | p. 432 |
References | p. 435 |
Index | p. 483 |
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