|
| General parameters of the model |
|
| DS | Distance within SECAs (n mile) |
| DN | Distance outside SECAs (n mile) |
| V | Sailing speed (knot) |
| F | Conversion factor between speed and fuel consumption |
| Berthing day fuel consumption per round voyage (ton) |
| r | Freight rate per container ($) |
| a | The capacity utility rate |
| R | Revenue from the sailing routes ($) |
| Q | Container capacity of vessels (TEU) |
| m | The number of round voyages per year |
| PLSFO | Price of LSFO with a sulphur content of 0.5% ($/ton) |
| PMGO | Price of MGO with a sulphur content of 0.1% ($/ton) |
| PHSFO | Price of HSFO with a sulphur content of 3.5% ($/ton) |
| i | Discount rate |
| n | Total period (year) |
| C0 | The initial investment cost ($) |
| A | Annual operational expenditures ($/year) |
| M | Annual maintenance cost ($/year) |
| S | Salvage value at the end of the useful economic of the equipment ($) |
| PV | Present value ($) |
|
| Parameters of the LSFO method |
| C0LSFO | The initial cost of purchase and installation of fuel converter ($) |
| ALSFO | Annual operational expenditures of fuel converter ($/year) |
| mLSFO | The number of round voyages per year for the LSFO method |
| MLSFO | Annual maintenance cost of fuel converter ($/year) |
| fS | MGO consumption per round voyage within SECAs (ton) |
| fN | LSFO consumption per round voyage outside SECAs (ton) |
| fLSFO | Fuel consumed per round voyage (ton) |
| FLSFO | Annual cost of fuel consumption ($/year) |
| SLSFO | Salvage value of the fuel converter at the end of the time period ($) |
|
| Parameters of the use of a scrubber |
| C0scrubber | The initial cost of purchase and installation of a scrubber ($) |
| Ascrubber | Annual operation expenditures of scrubber systems ($/year) |
| mscmscrubber | The number of round voyages per year for the scrubber method |
| mscMscrubber | Annual maintenance cost of scrubber systems ($/year) |
| fscrubber | Fuel consumed per round voyage (ton) |
| Fscrubber | Annual cost of fuel consumption ($/year) |
| Escrubber | Annual cost of equipment operation ($/year) |
| Sscrubber | Salvage value of the scrubber at the end of its the time period ($) |
|
| General variables of the model |
| VS | Sailing speed inside SECAs (knot) |
| VN | Sailing speed outside SECAs (knot) |
| TS | Travelling time inside SECAs (day) |
| TN | Travelling time outside SECAs (day) |
|
