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WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

M

253 results

Mixed stowage

marine

A system to stow 20-feet containers into 40-feet cell guides. Starting from tank top you can stow from 1 to 4 tiers 20-feet containers (only secured by single stacking cones) and top them up with at least one 40-feet container.

MMBTU

marine

One million British Thermal Units. BTU is a traditional unit of energy equal to 1055.06 joules. It is the amount of energy needed to cool or heat one pound of water one degree Fahrenheit.

MMSCFD

marine

Million standard cubic feet per day is a unit of measurement mainly used in the USA. Mainly used as a measure for natural gas. One MMSCFD equals 1180 m3/h.

MOB RETRIEVAL EQUIPMENT

marine

There are several types of man overboard retrieval equipment like ladders, scrambling nets, A-frames, Jason’s cradle, hydraulically operated platforms, etc.

Mobdock

marine

A steel box (mobile mini drydock) provided with an access hatch and used as an external enclosure to carry out dry work to be done underwater.

MOBILE OFFSHORE DRILLING UNIT (MODUs)

marine

If geological predictions based on seismic surveys show that a particular offshore area offer promising prospects for finding oil, a well is drilled to examine these predictions.

MOBILE OFFSHORE UNITS (MOUs)

marine

Mobile Offshore Units – Self-elevating or column-stabilized units, not fitted with drilling equipment, production facilities, hydrocarbon storage, or any other system onboard handling hydrocarbons.

Model testing tanks

marine

Towing tanks, manoeuvring and seakeeping basins used to carry out experiments with models.

MODEL TESTS

marine

The most comprehensive assessment of power requirements for a new ship is obtained by conducting experiments with a model hull and propeller in a towing tank.

Modeling and simulation

energy

Modeling and simulation is the use of models as a basis for simulations to develop data utilized for managerial or technical decision making.

Modified atmosphere

marine

Fruit and vegetables can be transported in a nitrogen reach atmosphere in order to slow down the ripening process.

Modularity

energy

A method of construction of machinery that includes independent modules that when combined makeup the larger machine. The modules can easily be exchanged when maintenance or repair is required thereby reducing downtime.

Mole (unit)

energy

The mole (symbol: mol) is the unit of measurement for amount of substance in the International System of Units (SI).

Molten salt battery

energy

Molten-salt batteries are a class of battery that uses molten salts as an electrolyte and offers both a high energy density and a high power density.

Molten salt reactor

energy

A molten salt reactor (MSR) is a class of nuclear fission reactor in which the primary nuclear reactor coolant and/or the fuel is a molten salt mixture.

Molten sulphur/bitumen tanker FS CHARLOTTE

marine

Designed by Delta Marine, of Istanbul, the 11,000dwt combined molten suplhur and bitumen tanker is one of only very few vessels of this type in service worldwide.

Moment

marine

The attempt of a force to turn a body. It is usually measured by the product of the force and the length of lever.

Moment of inertia

energy

The moment of inertia, of a rigid body is a quantity that determines the torque needed for a desired angular acceleration about a rotational axis.

Moment of inertia, mass moment of inertia

marine

The product of the mass and the square of its perpendicular distance from the axis considered, which is summed for all the elements in the body considered.

Moment of statical stability

marine

The moment which will try to return a ship to upright position when she is inclined.

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