Rocks & mirror
WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

M

253 results

Magnetohydrodynamics

energy

Magnetohydrodynamics is the study of the magnetic properties and behaviour of electrically conducting fluids.

Magnitude

energy

Magnitude or size of a mathematical object is a property which determines whether the object is larger or smaller than other objects of the same kind.

Magnox reactor

energy

Magnox is a type of nuclear power/production reactor that was designed to run on natural uranium with graphite as the moderator and carbon dioxide gas as the heat exchange coolant.

Magnus effect

energy

The Magnus effect is an observable phenomenon that is commonly associated with a spinning object moving through air or another fluid.

Maiden voyage

marine

The first voyage of a new ship after handing over to the owner.

Main engine lubricating oil system

marine

This system supplies lubricating oil to the engine bearings, and cooling oil to the pistons.

Main generating station

marine

The space in which the main source of electrical power is situated, (acc. to SOLAS Chapter II-1, Part A).

Main propulsion power

marine

The total power supplied by the prime movers installed to provide propulsion.

Main source of electrical power

marine

A source intended to supply electrical power to the main switchboard for distribution to all services necessary for maintaining the ship in normal operational and habitable condition, (acc. to SOLAS, Chapter II-1, Part A).

Main vertical zones

marine

These sections into which the hull, superstructure, and deckhouses are divided by “A” class divisions, the mean length of which on any deck does not in general exceed 40 m, (SOLAS).

Mains electricity

energy

It is the form of electrical power that is delivered to homes and businesses through electrical infrastructure in many parts of the world.

Maintainability

marine

The ability to carry out rapid and effective system restoration to keep the equipment at a specified level of performance.

Maintenance

energy

The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, and residential installations.

Maintenance agreement

energy

An agreement working towards shared goals that are measured by defined Performance Indicators.

Maintenance costs

marine

The costs incurred in keeping equipment in an operational condition.

Maintenance of class

marine

Classed ships are submitted to surveys for the maintenance of class, confirmation, or renewal of their term.

Maintenance tools

marine

Maintenance of specific equipment requires special tools. Some of them are supplied with the equipment and others are available through service stations or for direct purchase by the customer.

Maintenance work

marine

Any action carried out to return or restore an item to an acceptable standard.

Major failure of tanker

marine

Deformation or rupture of a cargo tank, usually due to overpressurisation or underpressurisation.

Mandel shackle

marine

A special shackle used to connect a wire mooring line to a synthetic tail.

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