Hydrogen Storage In Vehicles--An Operational Comparison Of Alternative Prototypes 760570

Performance and operational characteristics of several prototype containers for storing hydrogen are described. A cryogenic vessel and three metal hydride containers of similar design but different size have been used in automotive service. Hydrogen release rates were controlled to match with engine demand. All prototypes were able to sustain a steady state flow rate sufficient for vehicle operation at normal cruise speed. In order to illustrate the principle of hydride operation, a pressure--temperature history for recharge of a small portable hydride tank is given along with several discharge curves with and without heating.


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