Cargo Heating - Fuel Cost per Voyage
Voyage fuel cost to keep a heated cargo (HFO, asphalt, vegoil) above its discharge-pumpable temperature given ambient seawater and tank U-value.
Heat loss
64.8kW
Fuel rate
6.8kg/h
Total fuel
2.0t
Voyage heating cost
1,210USD
Formula, assumptions, and limits
Wind chill and deck heat-loss can double bulkhead U-values on weather-exposed sides. Always check heating-coil pressure-drop and tracing continuity before voyage.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Tank overall heat-transfer coefficient | W/m²·K | insulation schedule | |
| Heat-loss area | m² | tank drawing | |
| Cargo-ambient ΔT | K | on-board RTDs | |
| Boiler efficiency | - | boiler maker data | |
| Net calorific value | MJ/kg | BDN / ISO 8217 |