Presentation on theme: "Hydrogen Basics Hydrogen First Discovered 1766 - Henry Cavendish –Named for being a “water former” –1 Proton, 1 Electron –H2 - Diatomic Molecule, 2 Protons,"— Presentation transcript:
Hydrogen Basics Hydrogen First Discovered 1766 - Henry Cavendish –Named for being a “water former” –1 Proton, 1 Electron –H2 - Diatomic Molecule, 2 Protons, 2 Electrons Colorless, Odorless, and has no Taste
Hydrogen Basics Burns with a pale Blue Flame Lightest Element in the Universe –H 2 = 1Mol = 1.0016 Grams –Disperses Rapidly - 1/16 the Density of Air –Flammable from 4% to 75% Concentration (40,000 to 750,000ppm) –Non-Toxic –Environmentally Benign
Hydrogen Safety Applicable Codes & Standards –NFPA 50A - Standard for Gaseous Hydrogen Systems at Consumer Sites. Covers the Storage of Hydrogen –ASME/ANSI B31.3 - Process Piping Covers the Marking of Hydrogen –CGA G-5 - Hydrogen Covers the Basics of Hydrogen –CGA G-5.4 - Standard for Hydrogen Piping Systems at Consumer Locations. Covers the Design of Hydrogen Piping Systems –CGA G-5.5 - Hydrogen Vent Systems Covers the Venting of Hydrogen
Hydrogen Storage Hydrogen is sold in high pressure steel or aluminum bottles which come in many different sizes. The actual storage capacity is dependent on bottle volume and fill pressure. Each kilowatt hour produced, requires 32 cubic feet of hydrogen Example Bottles Sizes: 8.0 kWh140 lbs261 cu-ft9” x 60” 6.1 kWh125 lbs197 cu-ft9” x 56” 2.5 kWh65 lbs80 cu-ft6” x 37” 1.0 kWh29 lbs33 cu-ft6” x 24”
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