Numbers

June 29, 2023 BackgroundAccording to the 2017 U.S. Climate Science Special Report if yearly emissions continue to increase rapidly, as they have since 2000, models project that by the end of this century global temperature will be at least 5 degrees Fahrenheit warmer than the 1901-1960 average, and possibly as … Continue reading

Hydrogen – Basic Concepts

September 14, 2021This paper covers hydrogen technologies regarding the role of hydrogen as an energy carrier and the possibilities of its production and use. It presents the modalities and efficiencies of current technologies of obtaining hydrogen; it also details obtaining it by electrolysis of water, the electrochemical efficiency, the specific … Continue reading

Conversion Factors

Specific equations available here Various measures, conversions and definitions used for hydrogen systems STP = standard temperature/pressure = 0°C (32°f) and 1 bar (≈1 atmosphere).Some references say STP is 25°C (77°f), reason unknown.NTP = normal temperature/pressure = 20°C (68°f) and 1 atm (atmosphere). Functionally, NTP is almost the same as … Continue reading

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