Fuel storing water ballast tank internally structured for reducing retention of water and overboard discharge of fuel

摘要

A tank within a ship providing for both fuel storage and water ballast, has external walls enclosing compartments formed between internal intersecting walls having flow regulating openings therein that are located and sized to establish separate interfaced flow paths along which segregated flows of fuel and water are concentrated to minimize mixing of fuel and water during refueling operation and reduce retention of water within the tank.