physical_constants.xls
(21 KB)
Contains data on the heats of fusion and vaporization for water, heat capacities of air and water, and gas constants.
Basic Hydrogen Properties
Download the information in Excel format:
Properties
Value
Units
Auto ignition temperature
500
°C
932
°F
Boiling point (1 atm)
-252.9
°C
-423.2
°F
Density NTP
0.08375…
Contains captive, on-purpose, hydrogen production capacities at individual refineries as of January 1 from 2007 through 2022. Data were obtained from the Energy Information Administration's June 21, 2022 Refinery Capacity Report.
Property
Units
Hydrogen
Methane
Propane
Methanol
Ethanol
Gasoline
Chemical Formula
H2
CH4
C3H8
CH3OH
C2H5OH
CxHy (x = 4 - 12)
Molecular Weight [a, b]
2.02
16.04
44.1
32.04
46.…
Contains a comparison of the amount of fuel necessary to provide the same energy unit based on the lower heating values.
Feedstock and utility price projectsion from the EIA.
The following document lists the number of fuel cell deployments (shipped and on-order) for applications in material handling equipment (MHE), and the major companies that have purchased and operate fuel cell powered lift trucks as of 5/23/18…
Explains the reactions, electrolyte material, applications, and other information about the various types of fuel cells.
A limited number of Fuel cell electric vehicles (FCEVs) are commercially available as of 2019. These include:
Honda Clarity
Hyundai Nexo
Toyota Mirai
For additional information about these vehicles, visit the Alternative Fuels Data…
Hydrogen Density at different temperatures and pressures
Hydrogen Entropy at different temperatures and pressures
Presents hydrogen fuel specifications currently prescribed by the State of California.
Updated July, 2019.
Contains information on the lengths of hydrogen pipeline in the U.S., Europe, and the rest of the world by location and ownership.
Hydrogen Specific Heat at different temperatures and pressures
DOE/EERE's database that aims to collect and disseminate materials data and accelerate advanced materials R&D.
Visit: https://www.energy.gov/eere/fuelcells/databases.
Hydrogen Thermal Conductivity at different temperatures and pressures
This document contains default assumptions for mileage that were calculated by Argonne National Laboratory using their Powertrain Systems Analysis Toolkit. Likely ranges for these assumptions and additional supporting infomation are documented…
Hydrogen Viscosity at different temperatures and pressures
Existing and planned hydrogen fueling stations in the U.S. are available to view on a map or download as a spreadsheet from the Alternative Fuels Data Center. The site includes information regarding location, accessibility, hours of operation…
Hydrogen Compressibility at different temperatures and pressures