Pneumatic anti-ice system

A pneumatic anti-ice system is a technology that uses air or another gas to prevent ice buildup on ships sailing in icy waters.

Pneumatic anti-ice systems use compressed air or engine exhaust as the working gas, which is vented overboard through a series of ejectors from bow to amidships.

[2] Variants of a heated steam-air system in the waterline area were considered, and the prospects for its use as a thruster to increase maneuverability were studied.

The ongoing processes develop too quickly to warm above-the-waterline ice to the ambient water temperature, as a result of which it freezes or sticks to the hull.

Air flushing reduces the contact area of the ice with the hull and increases the temperature by creating an upstream current of warmer water at greater depth, thereby solving the first problem.