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Boilers in which heat is produced by electricity rather than fuel oil or gas. Heat is produced either between two electrodes or by resistance to the flow of electricity through a coiled conductor.

Related Terms

RESTRICTOR

A device for producing a deliberate pressure drop or resistance in a line by reducing the cross-sectional flow area.

SKIN CONDENSER

Condenser using the outer surface of the cabinet as the heat radiating medium.

ALKALINE BOIL-OUT

Employed to remove oil and grease deposits from heating surfaces.

BULK CARGO

Cargo such as oil, coal, ore, woodchips, etc. not shipped in bags or containers

OILING SPLASH SYSTEM

Method of lubricating moving parts by agitating or splashing oil in the crankcase.

COMPRESSOR

A device which converts mechanical force and motion into pneumatic flow power.

EMULSIFIER

Additive that promotes the formation of a stable mixture, or emulsion, of oil and water. Common emulsifiers are: metallic soaps, certain animal and vegetable oils, and various polar compounds.

CLOUD POINT

The temperature at which waxy crystals in an oil or fuel form a cloudy appearance.

REFRIGERATING CAPACITY

The ability of a system to remove heat as compared with the cooling effect produced by melting of ice.

CORROSION INHIBITOR

Additive for protecting lubricated metal surfaces against chemical attack by water or other contaminants. There are several types of corrosion inhibitors. Polar compounds wet the metal surface preferentially, protecting it with a film of oil. Other compounds may absorb water by incorporating it in a water-in-oil emulsion so that only the oil touches the metal surface. Another type of corrosion inhibitor combines chemically with the metal to present a non- reactive surface.
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