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Publication Title | COMMERCIAL MARINE SMART TECHNOLOGY FIVE KEYS TO INTELLIGENT SEA WATER COOLING

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COMMERCIAL MARINE SMART TECHNOLOGY

FIVE KEYS TO INTELLIGENT SEA WATER COOLING

THE RESULT: SIGNIFICANT ENERGY SAVINGS, EFFICIENCY AND RELIABILITY FOR SEA WATER COOLING SYSTEMS IN BOTH NEWBUILD AND RETROFIT APPLICATIONS

BY CHRISTIAN MARTIN, DIRECTOR OF PRODUCT MANAGEMENT, COMMERCIAL MARINE

Ship owners are using intelligent pump controllers to reduce energy and maintenance costs for sea water cooling systems.

Optimizing a vessel’s performance is something all ship owner and operators would like to achieve – sooner rather than later. In fact, demands for ef ciency and savings have never been greater. At times, it can seem to be a daunting task – reduce operating costs and increase ef ciencies

to reduce carbon footprint, all while maintaining peak performance. But new technologies exist that can help optimize ef ciency and sustainability. Ship owners who apply this technology to their eet can see signi cant operating savings, enhanced uptime, reduced carbon footprint and an increase in pro tability.

The uid handling system in a ship’s engine room represents approximately 20 to 25 percent of the vessel’s electric

load. This presents an opportunity for savings if energy consumption can be signi cantly reduced. The result is

fewer carbon emissions and greener operations. A ship owner can greatly reduce these energy costs through smart sea water cooling.

TRADITIONAL SEA WATER COOLING

Sea water cooling systems are essential support systems for the engine room, allowing the vessel to operate safely. A traditional system utilizes comparatively large pumps that are operated continuously – 365 days a year, 24 hours a day.

The primary loop for transporting unusable heat out of most major systems and components in the engine room, sea water cooling systems provide constant, reliable cooling to

all the connected shipboard consumers, such as the main engine, generators and auxiliary equipment. The systems pump ambient sea water into a circulating loop that provides a heat exchange with the vessel’s freshwater cooling system, which works to cool shipboard energy consumers. Once the sea water has taken on heat from the fresh water, it is pumped back into the ocean as cooler ambient sea water is drawn in and introduced to the system in a continuous manner.

These traditional cooling systems are typically operated by pumps arranged in a 2x100% con guration – one pump active and running at 100% ow with the second pump redundant – or a 3x50% con guration that allows some savings by running a single pump at a 50% system- ow or two pumps at a 100% ow with a third pump redundant. Operation of only one 50% pump requires further attention and system adjustment by the crew, usually in the manual setting of the duty point for the single running pump. Traditional system design operates the pumps constantly at full speed.

ALLWEILER® HOUTTUINTM IMO®

colfax uidhandling.com/commercial-marine

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