Title: Hydrogen production, storage, and conversion for electric utility and transportation applications
Abstract:Hydrogen is a promising fuel of the future, particularly for electric utility and transportation applications. An essential requirement in both these applications is the necessity for optimizing the i...Hydrogen is a promising fuel of the future, particularly for electric utility and transportation applications. An essential requirement in both these applications is the necessity for optimizing the intermediate steps of hydrogen production, its storage and conversion from the point of view of capital cost, energy utilization, and energy conversion efficiency. At the present time, the energy efficiency for hydrogen production by water electrolysis is about 75%. With improved catalysts, higher operating temperatures and better separator materials in advanced systems (Teledyne, Lurgi, and General Electric water electrolyzers), it should be possible to carry out water electrolysis at close to 100% efficiencies. The storage of hydrogen as a metal hydride shows significant advantages over the cryogenic or compressed gas procedures. For electric utility applications, its feasibility has been demonstrated using an iron-titanium alloy. Though this alloy may also be suitable for hydrogen storage in buses and trains, it will be necessary to consider the lighter hydrides for automobiles. With fuel cells or combined cycle gas turbines, it should be possible to attain energy conversion efficiencies of about 60%. The present status and potential for improvements in acid, alkaline, molten carbonate, and solid oxide fuel cell systems are briefly summarized. (auth)Read More
Publication Year: 1976
Publication Date: 1976-01-01
Language: en
Type: article
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Cited By Count: 1
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