Theoretical Power generation

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Concepts and Comments

Max Energy From H2 in Fuel Cell - Thermodynamic Limit

at room T and P (300K and 1atm)

H2 + 0.5O2 = H2O

Enthalpy (ΔH) and Entropy (TΔS)

ΔH = − 285.8kJ / molH2

TΔS = − 48.7kJ / molH2


Gibbs Free Energy (available for work)

ΔG = ΔHTΔS

ΔG = − 237.1kJ / molH2 = − 136.5MJ / kgH2

Materials

Links

NREL Cost Analaysis of Algae H2 Production

Thermodynamics of Fuel Cell H2 Energy Conversion

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