Hydrogen Calculations

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  • 4 Atmospheres in a propane tank -

  • 6 cu m or 200 scf in a high pressure welding cylinder - [1]. If hydrogen has about 250 BTU per cu ft, then a 200 scf tank has about 3 kW hr of electrical energy when burned in a small gas engine to produce electricity. This is about the same energy as a 250 gallon propane tank.
  • Production rate - [2] - each Spicer electrolyzer cell produces 1/2 cu ft per hr with 40A x 24V. Under 1 kW of input power. 12 cell system of Walt Pyle had 20A x 24v. The rated production rate of a 12 cell system appears to be 6 cubic feet per hour (170 liter/hour).
  • Compare to 600 liter/hr at $1740 on Ebay for a common-duct electrolyzer - [3]

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