Parameter | Equation for objective function | Interpretation |
---|---|---|
OTI | OTI = OE/IE | OTI: Ratio of output energy to input energy or energy efficiency OE: Output energy (MJ); amount of output product (kg, m3) times HHV of product (MJ/kg) IE: input energy (MJ)a |
STE | STE = STO/ETO | STE: ratio of CO2 sequestration to CO2 emission STO: ratio of the weight of sequestrated CO2 gas to the output energy (kg CO2/MJ) ETO: ratio of the weight of exhausted CO2 gas to the output energy (kg CO2/MJ) |
MTP | MTP = MP/PP | MTP: ratio of market price to predicted price of output unit of output unit MP: market price ($/product unit) PP: predicted price ($/product unit) PP = total cost for a period ($) divides number of finished output products (product units) |