LNG Boil-Off Rate from Heat Ingress
Daily BOR from tank surface, U-value and temperature drop - useful cross-check against trial-measured BOR.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Tank outer surface area | m² | |
| Insulation overall U-value | W/(m²·K) | |
| Outer − LNG temperature | K | |
| LNG latent heat | kJ/kg |
Source: SIGTTO - LNG operational guidance
In short
Daily BOR from tank surface, U-value and temperature drop - useful cross-check against trial-measured BOR.