Rocks & mirror

WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

I

226 results

Ignition

marine

The setting on fire of an explosive mixture, usually within an engine cylinder.

Ignition delay

marine

The period between the beginning of fuel injection into an engine cylinder and the begining of combustion.

Illuminance

energy

In photometry, illuminance is the total luminous flux incident on a surface, per unit area.

Immersion

marine

The change in draught resulting from the addition or removal of the particular mass. In SI system it is called tonnes per centimetre immersion, TPC.

Immersion suit, also survival suit

marine

A protective suit that reduces the body heat-loss of a person wearing it in cold water, e.g. when rescuing someone from the sea.

IMO

marine

see International Maritime Organization.

IMO Data Collection System “DCS”:

marine

IMO Data Collection System “DCS” defines data that the IMO mandates shipowners collect and report each calendar year.

IMO Instruments

marine

Conventions and other mandatory documents such as codes referred to in conventions.

Impact on the environment

energy

The effect that a particular energy source has on the environment.

Impedance

energy

Electrical impedance is the measure of the opposition that a circuit presents to a current when a voltage is applied.

Impeller

marine

A rotating member of a turbine, blower, fan, pump, or water propulsor.

Impressed current cathodic protection (ICCP)

marine

A controlled cathodic protection of the hull against corrosion. The system incorporates a rectifier which supplies an automaticallyregulated direct current to the permanent anodes.

Impulse turbine

energy

Impulse turbines change the direction of flow of a high velocity fluid or gas jet.

In situ leaching

energy

In-situ leaching, also called in-situ recovery or solution mining, is a mining process used to recover minerals such as copper and uranium through boreholes drilled into a deposit, in situ.

In water survey (IWS)

marine

The survey of hull plating undertaken in the water. The ship is provided with marks placed on the shell to show borders of tanks, cofferdam etc

Incandescent light bulb

energy

An incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows.

Inchworm motor

energy

The inchworm motor is a device that uses piezoelectric actuators to move a shaft with nanometer precision.

Incident ray

energy

An incident ray is a ray of light that strikes a surface.

Incineration

energy

Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials.

Inclining test

marine

The experiment performed to determine the ship vertical center of gravity. It consists of shifting a series of known weights transversally across the deck when the ship is free to heel.

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