Assumption for the techno-economic analysis of the electrified ammonia plant
Parameter | Value |
---|---|
Global economic assumptions | |
Currency conversion rate [USD/CAD] | 0.754 |
Nominal interest rate | 10% |
Ammonia plant specification | |
Ammonia designed output [kg/s] | 10 |
Total conversion (for both H2 and N2) | 98% |
Plant life [years] | 20 |
Plant capacity factor | 0.67 |
Electrolyzer | |
Efficiency | 0.6 (based on LHV) |
Energy consumption [kWh/kg H2] | 55.6 |
Water conversion ratio | 100% |
Air separation unit (ASU) | |
Energy consumption [kWh/kg N2] | 0.421 (Aneke and Wang, 2015) |
Ammonia reactor | |
Energy consumption [kWh/kg NH3] | 0.778 |
Operational cost | |
Electricity cost [US$(2018)/MWh] | 13.8 |
Process water cost [US$(2018)/m3] | 2.15 (City of Toronto, 2020) |
Maintenance cost | 5% of initial CAPEX per annum |