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122 Results
  • Impeller

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

  • Impressed current cathodic protection (ICCP)

    A controlled cathodic protection of the hull against corrosion. The system incorporates a rectifier which supplies...

  • In water survey (IWS)

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

  • Inclining test

    The experiment performed to determine the ship vertical center of gravity. It consists of shifting a series of...

  • Indent

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

  • Independent

    “Independent” means that a piping or venting system, for example, is in no way connected to another system and...

  • Independent tank

    see Cargo tank.

  • Indicated power

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

  • Indicator diagram

    The pressure-volume diagram produced by an engine indicator.

  • Indirect expansion system

    A refrigeration system in which a secondary coolant is cooled by the direct expansion of a primary refrigerant...

  • Indirect injection engine

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

  • Industrial vessels

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

  • Inert condition

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

  • Inert gas

    Gas or a mixture of gases containing insufficient amount of oxygen to support the combustion of hydrocarbons, a...

  • Inert gas blower

    Blowers are used to deliver the scrubbed flue gas to the cargo tanks. At least two blowers shall be provided.

  • Inert gas generator (IGG)

    A device, similar to a boiler, in which fuel is burnt to create exhaust gases which contain less than 5% oxygen...

  • Inert gas production plants

    1. Flue gas system - If available, flue gas from ship boilers can be used for inerting. The flue gas system washes...

  • Inert gas system

    A system of preventing any explosion in the cargo tanks of a tanker by replacing the cargo, as it is pumped out...

  • Inerting

    Creation of an inert atmosphere in tanks or in the surrounding void spaces to prevent explosive conditions, reduce...

  • Inflammable liquids

    Liquids liable to spontaneous combustion giving off inflammable vapours at or below 80 degrees F. For example...

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