LNG - Boil-off Rate Calc
LNG boil-off rate estimate from tank surface heat-gain and insulation U-value - screens BOG management design.
Heat inleakage
150.4kW
BOR
0.033%/day
Formula, assumptions, and limits
Membrane (GTT NO96/Mark III) BOR 0.10–0.12 %/day. Moss spherical slightly higher. Advanced Mark-V: 0.085 %/day. Critical for voyage-mass calculation + CII reporting.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Tank insulation U-value | W/m²·K | GTT technical bulletin | |
| LNG latent heat | kJ/kg | NIST |