NOZZLE COOLING
Nozzle Cooling is developed to cool the low temperature systems of the main engines. The initial reason for this development is because of the reducing size of the main engines of various ship types, a trend that has been taking place over the past few years. When reducing in size, the power of the engines is ‘squeezed’, thus resulting in the need for more cooling capacity.
Cooling the low temperatures of the main engines is achieved by directing the cooling water from the main engines through the nozzle construction. The application of Nozzle Cooling has the advantage that, due to the rotation of the propeller, the flow speed of the seawater along the nozzle is always high - precisely when the main engines are heavily loaded. This guarantees cooling with high efficiency.
Specifcations
ADVANTAGES
APPLICATION
Various vessel types. Especially suited for tugs and workboats.
Single Weld Spinning Method
Damen Marine Components has developed the Single Weld Spinning Method based on a single weld seam on the inner side of the nozzle. This machine can produce nozzles with an inside diameter ranging from 1,000 mm to 5.3 m outside. Using a completely automated system, the spinning machine can handle stainless steel, duplex, steel and special steel materials.
A nozzle is a sustainable product by definition because it significantly reduces fuel consumption and CO² emissions. The Spinning Weld Method makes the production of the nozzle even more environmentally friendly, since there is less welding and grinding, this saves energy and emissions. In addition, this method saves production time and enhances DMC’s stable price/quality ratio, which makes it more cost efficient.
ADVANTAGES
- Cost efficient
- Smoother nozzle surface
- Reduced fuel consumption and CO² emissions
- Efficient production process
