Boil-off rate (BOR)

The amount of liquid that is evaporating from a cargo due to heat leakage and expressed in % of total liquid volume per unit time. Typical values are 0.15%/day and below, recent projected LNG carriers are offered with a BOR close to 0.1%. However as early as 1990, the LNG carrier EKAPUTRA was delivered with a BOR of 0.1%/day.

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