Re-envisioning a sustainable hydrogen energy economy

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Complementary roles of hydrogen and battery storage across a range of transport vehicles and services • Hydrogen can provide long-term storage, without significant losses (just like fossil fuels) • Batteries have superior roundtrip energy efficiency (electricity to electricity) for shorter duration storage • Batteries allow energy recovery via regenerative braking • Hydrogen has superior gravimetric and volumetric energy densities and hence gives greater travel range • Only hydrogen likely to be suitable for medium and long-distance road, rail and sea transport • Liquid hydrogen most suitable non-petroleum substitute fuel for jet and other aircraft RMIT University©2010 SAMME 24
Hydrogen FC and battery systems: basic on-board components HYDROGEN IN H2 STORAGE H2 FUEL CELL ELECTRICITY OUT O2 FROM AIR ELECTRICITY IN ELECTRICITY OUT BATTERY BANK
Page 1 and 2: Re-envisioning envisioning a sustai
Page 3 and 4: The hydrogen economy - origins “T
Page 5 and 6: A solar-hydrogen system at the loca
Page 7 and 8: 500 W PEM fuel cell CHP experimenta
Page 9 and 10: The original vision of a hydrogen e
Page 11 and 12: Renewable paths to hydrogen >2000 K
Page 13 and 14: Recent ‘sustainable’ energy sce
Page 15 and 16: Studies are showing H2 for transpor
Page 17 and 18: Seven principles underlying the SHE
Page 19 and 20: Sustainable hydrogen centre hierarc
Page 21 and 22: Coastal Hydrogen Centre (CHC) • S
Page 23: Inland Hydrogen Centre (IHC) • Di
Page 27 and 28: RMIT University©2010 SAMME 27
Page 29 and 30: Honda FCX Clarity hydrogen car •H
Page 31 and 32: Towards sustainable transport Horse
Page 33 and 34: Hydrogen for longer-duration energy
Page 35 and 36: Seasonal variation of wave power -
Page 37 and 38: Bulk hydrogen storage as strategic
Page 39 and 40: The H-skeptics 1: David McKay Count
Page 41 and 42: SHE is a promising vision, but adva
Page 43 and 44: Grand goal • Autonomous, zero-emi
Page 45: The reversible electrolysis - fuel
Page 48 and 49: Solid state storage Metal hydrides:
Page 50 and 51: Unitised Regenerative Fuel Cells (U
Page 52 and 53: E ▲ Oxygen side Anode Hydrogen si
Page 54 and 55: Slide 54 ⎪ ⎪ ⎭ ⎪ ⎪ ⎬
Page 56 and 57: URFCs: main technical challenges
Page 58 and 59: Conventional and direct coupling of
Page 60 and 61: PEM electrolyser characteristics 5
Page 62 and 63: Series—parallel stacking of PV pa
Page 64 and 65: Direct coupling of RMIT 2.4 kW PV a
Page 66 and 67: RMIT fuel cell truck project 1/14 s

Re-envisioning a sustainable hydrogen energy economy

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