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sci.fermentation-ethanol-yield Calculator
Calculates theoretical ethanol yield from carbohydrate feedstock using Gay-Lussac fermentation stoichiometry: C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂. Theoretical yield: 0.511 g ethanol/g glucose; industrial fermentation achieves 90–95% of theoretical — 1 tonne dry corn yields ~430 L ethanol.
Inputs
Glucose Kg
Blood sugar level. Fasting normal: 70–99 mg/dL. 100–125 = prediabetes. 126+ = diabetes (confirmed on two tests).
Yeast Efficiency Pct
Useful output divided by total input, as a percentage. 100% is impossible due to losses (heat, friction, resistance).
Ethanol Density Kg L
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
Results
ethanol produced (kg)
Sample size or count used in the calculation.
ethanol volume (L)
The computed three-dimensional volume.
CO₂ produced (kg)
Reference formula or conversion factor shown for context.
Gay-Lussac: C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
Reference formula or conversion factor shown for context.
theoretical ethanol (kg)
Sample size or count used in the calculation.
fermentation efficiency
Useful output divided by total input, as a percentage. True 100% efficiency is impossible — losses appear as heat. LEDs: 30–50%. Electric motors: 85–97%. Switching supplies: 85–95%.