WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

S

696 results

Scrubber, scrubbing tower

marine

A cleaning chamber in an inert gas plant. The purpose of the scrubber is to cool the flue gas and remove most of the sulphur dioxide and particulate soot.

Scum valve

marine

A boiler mounting used to remove scum from the water surface. A shallow dish is positioned at the normal water level and connected to the valve.

Scuppers

marine

Drains from decks to carry off accumulations of rainwater, condensation or seawater.

Scuttle

marine

A small circular or oval opening in a deck or elsewhere, usually fitted with a cover or lid or a door for access to a compartment.

Sea Axe

marine

The Sea Axe, also referred to as axe bow, is a new ship type developed by professor Keunig from the University of Delft in collaboration with the High Spees & Naval Craft Department of Damen shipyards Gorichem.

Sea breeze

energy

A sea breeze or onshore breeze is any wind that blows from a large body of water toward or onto a landmass; it develops due to differences in air pressure created by the differing heat capacities of water and dry land.

Sea Cargo Charter

marine

Sea Cargo Charter: charterers promoting responsible environmental stewardship throughout the maritime logistics value chain. It is aligned with the Poseidon Principles

Sea chest, sea inlet box

marine

An enclosure, attached to the inside of the underwater shell and open to the sea, fitted with a portable strainer plate.

Sea island

marine

A pier structure without a direct connection to the shore at which tankers can berth. Berthing can take place either on one or both sides of the structure.

Sea level

energy

Mean sea level is an average level of the surface of one or more of Earth's bodies of water from which heights such as elevation may be measured.

Sea margin

marine

A provision for an increased resistance caused by wind, sea state, fouling of hull andpropeller, shallow water, currents, etc.

Sea state monitoring systems, wave monitoring systems

marine

Radar–based systems to determine the exact sea state around the ship in order to avoid hull and cargo damage caused by heavy weather.

Sea suction

marine

The aperture through which sea water is drawn or the part of a pumping system which admits seawater into it.

Sea Trial Program

marine

Sea trials are carried out after the dock tests to demonstrate proper operation of the main and auxiliary machinery, including monitoring, alarm and safety systems, under realistic conditions.

SEA-Arrow bow (Sharp Entrance Angle bow as an Arrow)

marine

The new shape of LPG carrier bow developped by Kawasaki Shipbuilding in order to decrease wave resistance at the bow without the bulb while allowing cargo tanks to extend to the foremost point of the vessel.

Seafarer

marine

A person who works on ships for a living.

Sea-going vessel

marine

Vessel navigating on the high seas, i.e. areas along coast and from coast to coast.

Seakeeping

marine

Ship behaviour in rough weather. Seakeeping covers various aspects of performance in waves such as slamming, deck wetness, speed and power, propeller emergence.

Seal retaining channel

marine

The steel channel into which the seal is glued.

Seam

marine

Fore-and-aft joint of shell plating, deck and tank top plating, or a lengthwise edge joint of any plating.

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