Rocks & mirror

WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

I

226 results

Indent

marine

Deformation of structural members caused by out off-plane loads like bottom slamming and bow impact forces, contact with other objects, etc.

Independent

marine

“Independent” means that a piping or venting system, for example, is in no way connected to another system and that there are no provisions available for the potential connection to other systems, (IBC Code).

Independent tank

marine

see Cargo tank.

Indicated power

marine

The power developed in an engine cylinder. It is determined from an indicator diagram and certain basic information about the engine.

Indicator diagram

energy

An indicator diagram is a chart used to measure the thermal, or cylinder, performance of reciprocating steam and internal combustion engines and compressors.

Indirect costs

energy

Indirect costs are costs that are not directly accountable to a cost object (such as a particular project, facility, function or product).

Indirect drive wind turbine

energy

A wind turbine whereby the rotor is connected to the generator through a series of gears. This method can provide faster speeds at the generator allowing for smaller generators.

Indirect expansion system

marine

A refrigeration system in which a secondary coolant is cooled by the direct expansion of a primary refrigerant and is then circulated to cool the medium which absorbs heat from the space to be cooled.

Indirect injection engine

marine

A type of engine in which the fuel is not injected into the main combustion chamber, but is injected into a prechamber instead.

Induced radioactivity

energy

Induced radioactivity, also called artificial radioactivity or man-made radioactivity, is the process of using radiation to make a previously stable material radioactive.

Inductance

energy

The tendency of an electrical conductor to oppose a change in the electric current flowing through it.

Induction generator

energy

An induction generator or asynchronous generator is a type of alternating current electrical generator that uses the principles of induction motors to produce electric power. Induction generators operate by mechanically turning their rotors faster than synchronous speed.

Induction heating

energy

Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, through heat generated in the object by eddy currents.

Induction motor

energy

An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.

Industrial Emissions Directive (IED)

energy

A European directive committing members to control and reduce the impact of emmisions harmful to the environment.

Industrial engineering

energy

Industrial engineering is an engineering profession that is concerned with the optimization of complex processes, systems, or organizations by developing, improving and implementing integrated systems of people, money, knowledge, information and equipment.

Industrial processes

energy

Industrial processes are procedures involving chemical, physical, electrical or mechanical steps to aid in the manufacturing of an item or items, usually carried out on a very large scale.

Industrial radiography

energy

Industrial radiography is a modality of non-destructive testing that uses ionizing radiation to inspect materials and components with the objective of locating and quantifying defects and degradation in material properties that would lead to the failure of engineering structures.

Industrial vessels

marine

Ships designed to perform specialized marine functions such as fishing, drilling, cable or pipe laying, often requiring specialized personnel.

Inert condition

marine

A condition in which the oxygen content throughout the atmosphere of a tank has been reduced to 8 per cent or less in volume by the addition of inert gas.

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