Jamie McBrien's IET PATW presentation describes what fuel cell vehicles are and why they being developed. The common myth regarding their safety is highlighted. Before concluding it also provides a comparison to electric vehicle performance.
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Fuel cell vehicles
1. IET Present Around the World 2014
Fuelling The Future
Fuel Cell Vehicle Development
By Jamie McBrien
Mechanical Engineer, Johnson Matthey Fuel Cells
2. Current issues
Carbon
Dioxide
Nitrogen
Oxides
Carbon
Monoxide
Particulate
matter
Other
toxins
• 1bn vehicles worldwide each emit 5 tonnes of CO2 per year
• Legislation for 1.5 million ZEVs on California’s roadways by 2025
3. What are fuel cell vehicles?
Hydrogen
Storage Tank
Power
Control Unit
Fuel Cell
Stack
Electric
Motor
Fuel Cell: Hydrogen + Oxygen → Water
Combustion: Petrol + Oxygen → Water + CO2 + CO + NOx + Particles / toxins
4. Why are they being developed?
• Zero emissions and better efficiency
•Direct replacement for current vehicles
•Opportunity to use renewable energy
Weight of Energy System to Travel
300
0
Batteries
Petrol
Hydrogen
100 miles
25%
Typical Engine Efficiency
75%
Combustion Engine
50% 50%
Fuel Cell
Used Lost
5. Comparison with Batteries
Fuel Cell
Vehicles
Battery Vehicles
Refuel in 5 mins Take up to 7
hours to charge
300 – 400 miles
range
100 miles range
Recharging:
Refuelling:
15. Different to batteries:
Chemical Energy
Store
Chemical
Reactions
Electrical Energy
Fuel Source
Chemical
Reactions
Electrical Energy
Battery:
Fuel Cell: