Chicago Develops Commercial Hydrogen Bus Fleet

A Chicago Transit Authority (CTA) project has demonstrated that the industrial gas industry can design and construct central hydrogen fueling stations for fleet applications.The system is based on liquid hydrogen and high-pressure cryogenic pump technology, modified for fueling requirements.Theoretically, the hydrogen fuel cell is more efficient than the diesel engine. The hydrogen fuel cell has an efficiency of about 40% while diesel-engine efficiencies are 25-32%.The Chicago fleet`s hydrogen source is based upon delivered hydrogen. This first-of-a-kind hydrogen fueling station has supported transit operations of three fuel cell city buses in Chicago since 1997.Fuel-cell vehicles (FCVs) ...

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