Question

30 GJ of energy are required for a process. The current fuel is coal with a conversion efficiency of 80%. The proposed system will substitute a biomass fuel with a conversion efficiency of 85%. Estimate the reduction in greenhouse gas emissions in t CO2 equivalent. The emissions factors for the coal are CO2 – 92.7 kg/GJ; CH4 – 0.0145 kg/GJ; N2O – 0.0029 kg/GJ. The emissions factors for the biomass are CO2 – 0 kg/GJ; CH4 – 0.0299 kg/GJ; N2O – 0.0037 kg/GJ.

Answer 1

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