Cargo Heating Coil - Area Requirement
Heating-coil area required to maintain cargo T = steam duty / (U × ΔT).
Required coil area
47.6m²
Formula, assumptions, and limits
U-value 300-500 W/m²K for submerged coil in heated cargo. Coils fouled (asphaltene, wax) → U drop. Design 1.25× to account for surface fouling.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Overall HX coefficient | W/m²·K | cargo maker | |
| Log Mean Temp Difference | K | heat exchange analysis |