WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

L

227 results

Lip seal

marine

A shaft seal used to prevent the entry of the seawater or loss of oil from a stern tube bearing. A circular rubber ring is held against the rotating shaft by springs and the existing pressure.

Liquefaction

energy

In materials science, liquefaction is a process that generates a liquid from a solid or a gas or that generates a non-liquid phase which behaves in accordance with fluid dynamics.

Liquefaction of gases

energy

Liquefaction of gases is physical conversion of a gas into a liquid state (condensation).

Liquefied CO2 carrier CORAL CARBONIC

marine

Built in 1999 by Frisian Shipyard Welgelegen, the Netherlands, the CORAL CARBONIC is the world first vessel designed for the carriage of liquefied CO2.

Liquefied Natural Gas (LNG)

energy

LNG is natural gas that has been converted to liquid form for easier transport and storage.

Liquefied natural gas (LNG)

marine

Natural gas comes from natural sources and is composed of methane, ethane, propane and small amount of butane. It is condensed to about 1/600 of the volume by cooling it to below the -160°C, its boiling point, to produce LNG.

Liquefied petroleum gas (LPG)

marine

Liquid petroleum gas, produced during the refining of crude oil or rich/wet natural gas and made up of propane and butane with some propylene and butylene.

Liquefied Petroleum Gas (LPG)

energy

Liquefied petroleum gases, also referred to as simply propane or butane, are flammable mixtures of hydrocarbon gases.

Liquid

energy

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure.

Liquid biofuels

energy

Liquid biofuels are derived from biological material and can be produced from a variety of carbon sources.

Liquid cargo

marine

Cargo with a vapour pressure below 2.75 bar absolute at 37.8°C.

Liquid cargo ships

marine

see tankers.

Liquid chemical waste

marine

Substances, solutions or mixtures, offered for shipment, carried for dumping, incineration or other methods of disposal other than at sea.

Liquid fluoride thorium reactor

energy

The liquid fluoride thorium reactor is a type of molten salt reactor. LFTRs use the thorium fuel cycle with a fluoride-based, molten, liquid salt for fuel.

Liquid fuels

energy

Liquid fuels are combustible or energy-generating molecules that can be harnessed to create mechanical energy, usually producing kinetic energy.

Liquid metal cooled nuclear reactor

energy

A liquid metal cooled nuclear reactor, liquid metal fast reactor or LMFR is an advanced type of nuclear reactor where the primary coolant is a liquid metal.

Liquid penetrant inspection

energy

Liquid penetrate inspection (LPI) is a widely applied and low-cost inspection method used to check surface-breaking defects in all non-porous materials.

Liquid pitch carrier SUNBIRD ARROW

marine

At present, vessels that transport liquid pitch number only eight on the international market and the vessels have only 9,000-10,000 tonne capacity to transport this key material for aluminium production.

Liquid power plants

energy

Power plants that utilise a liquid fuel.

Liquid transfer operations

marine

Liquid cargo loading and unloading, ballasting and deballasting, ballast water exchange and tank cleaning operations.

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