DOE Hydrogen and Fuel Cells Program Record

1 DOE Hydrogen and fuel Cells Program Record Record #: 9013 Date: July 7th, 2009 Title: Energy requirements for Hydrogen gas compression and liquefaction as related to vehicle storage needs Originator: Monterey Gardiner Approved by: Sunita Satyapal Date: October 26th, 2009 Item: This Record addresses the range of energy requirements to compress and/or cool Hydrogen (H2) for storage onboard a Hydrogen vehicle. Two physical Hydrogen storage methods are considered: H2 gas compressed to high pressure (350, 700 bar) and liquid Hydrogen (LH2). Theoretical minimum energy requirements are determined from exergy differences using the standard properties of normal Hydrogen (25% para-H2 spin isomer) as reported by the National Institute of Standards (NIST) [1].

This record addresses the range of energy requirements to compress and/or cool hydrogen (H 2) for storage onboard a hydrogen vehicle. Two physical hydrogen storage methods are considered: H 2 gas compressed to high pressure (350, 700 bar) and liquid hydrogen (LH 2). Theoretical minimum energy requirements are determined from exergy

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