LNG Heel for Return Voyage
Minimum LNG heel to keep cargo tanks cold during ballast leg, allowing next load without full cool-down.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Daily BOG mass | t/day | |
| Ballast-leg days | d | |
| Spray mass at arrival | t |
Source: SIGTTO - LNG shipping operations
In short
Minimum LNG heel to keep cargo tanks cold during ballast leg, allowing next load without full cool-down.