The movement of heavy fluids aboard a floating vessel such as an FPSO has a pronounced affect on the attitude of that vessel in the water which must be counteracted by filling and emptying built-in ballast tanks with water. If too much weight flows to one side or another, the vessel tends to list that way and, in extreme cases, may be in peril of capsizing, especially if the vessel is lightly loaded and riding high out of the water. If too much cargo is stored amidships, there is danger of bowing at the keel and possibly breaking apart. The effects of fluid dynamics aboard the vessel are intensified when material is pumped from tanks in one section of the vessel to another as a part of on-board processing operations, making ballast control more complex. Valve Remote Control and ballast level measurements are generally included as part of the overall system and can be inputs to an integrated control and safety system (ICSS).
Most vessels have computer programs for ballast control and accurate measurements of tank levels and fluid flows are essential inputs for the special load computations required to remotely control the valves for ballast loading or offloading. Global Exergy highly proven valve control system developed ballast control solution is based on the ICSS so on-board processing operations are coordinated with the ballast control function. Global Exergy Ballast and Cargo solution reduces costs and supports ease of operation. It also provides infrastructure for asset management to improve equipment maintenance and longevity.