Kielwater, also known as kielwasser or kiel water, is a term used in the maritime industry to describe the water that is sucked into a ship’s propeller and then ejected back out into the sea. This phenomenon occurs when a ship is underway and the propeller blades are turning, creating a low-pressure area behind the blades that draws water into the propeller.
The term “kielwater” comes from the Dutch word “kiel,” which means keel, and “water,” which refers to the water that is taken in by the propeller. Kielwater is a natural occurrence when a ship is moving through the water, and it is not something that can be avoided. In fact, kielwater is necessary for a ship to operate efficiently and effectively.
There are a few key reasons why kielwater is important for a ship. First and foremost, kielwater helps to cool the ship’s engine and propeller, preventing them from overheating during operation. Without the cooling effect of kielwater, the engine and propeller could become damaged and the ship could be left stranded in the water.
Secondly, kielwater helps to improve the efficiency of the ship’s propulsion system. By drawing water into the propeller and then pushing it back out, kielwater helps to increase the thrust produced by the propeller, allowing the ship to move through the water more easily and quickly.
Despite its importance, kielwater can also have some negative effects on a ship. For example, the turbulence created by kielwater can cause vibrations and noise, which can be uncomfortable for passengers and crew members. Additionally, kielwater can create a disturbance in the water around the ship, which can affect nearby marine life and ecosystems.
Overall, kielwater is a natural and necessary part of a ship’s operation. While it can have some negative effects, its benefits far outweigh any drawbacks. Ships rely on kielwater to cool their engines, improve their propulsion systems, and operate efficiently and effectively. So the next time you see a ship cruising through the water, remember the important role that kielwater plays in keeping it moving smoothly.