A Comparison of Hydrogen Vehicle Storage Options Using the EPA Urban Driving Schedule
The three standard options for the storage of hydrogen fuel on passenger vehicles are compressed gas, metal hydride and cryogenic liquid storage. The weight of the hydrogen storage system affects the performance of the vehicle. We examine vehicle performance as a function of hydrogen storage system type and capacity. The impact of storage system volume on vehicle performance is not addressed in this paper. Three vehicles are modeled, a metro commuter, a mid size sedan and a full size van. All vehicles are powered by a fuel cell and an electric drive train. The impact of auxiliary power requirements for air conditioning is also examined. In making these comparisons it is necessary to assume a driving cycle. We use the United States Environmental Protection Agency (EPA) urban dynamometer driving schedule in all simulations to represent typical urban driving conditions.
KeywordsFuel Cell Storage System Hydrogen Storage Metal Hydride Aerodynamic Drag
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