WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

F

327 results

Flyer winding

energy

In the flyer winding method, a winding is produced by feeding the wire via a roll or through a nozzle that is attached to a flyer that is rotating at a certain distance from the coil.

Flywheel

energy

A flywheel is a mechanical device specifically designed to use the conservation of angular momentum so as to efficiently store rotational energy.

Flywheel energy storage

energy

Flywheel energy storage (FES) works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy.

Foam concentrate

marine

The full strength liquid received from the supplier, which is diluted and processed to produce foam. When using portable foam making equipment the concentrate is usually introduced to the system directly from the 25 litre storage drums.

Foam extinguishing systems

marine

Fixed, low- and high-expansion foam systems are permitted in the machinery spaces and fixed, low-expansion systems are required on cargo tank decks of tankers.

Foam filled fender

marine

In this type of a fender, the core consists of closed-cell, resilient, energy absorbing foam covered with protective, seamless polyurethane elastomer skin.

Foam solution

marine

The mixture produced by diluting foam concentrate with water before processing to make foam.

Foam system

marine

A foam system has a storage tanks containing foam concentrate.

Foam, also froth

marine

An aerated solution that is used for fire prevention and fire-fighting. Foam is an efficient agent for extinguishing most liquid petroleum fires.

Fogging

energy

Inlet air fogging consists of spraying finely atomized water (fog) into the inlet airflow of a gas turbine engine.

Foil

energy

A foil is a solid object with a shape such that when placed in a moving fluid at a suitable angle of attack the lift (force generated perpendicular to the fluid flow) is substantially larger than the drag (force generated parallel to the fluid flow).

Folding cover

marine

Any variety of hatch cover, which hinges and folds during opening.

Food energy

energy

Food energy is chemical energy that animals (including humans) derive from their food and molecular oxygen through the process of cellular respiration.

Food vs. fuel

energy

Food versus fuel is the dilemma regarding the risk of diverting farmland or crops for biofuels production to the detriment of the food supply.

Foot-pound force

energy

The foot-pound force is a unit of work or energy in the engineering and gravitational systems in United States customary and imperial units of measure.

Footprint

energy

The measured area that a building, machine or power plant covers on the ground.

FORAN

marine

CAD/CAM/CIM system from Spanish consulting and engineering house Sener.

Force

energy

Force is a vector quantity, which means that it has a magnitude and a direction.

Force Majeure

marine

The title of a standard clause in marine contracts exempting the parties from nonfulfillment of their obligations as a result of conditions beyond their control, such as earthquakes, floods, or war.

Forced air

energy

System that conditions a space by circulating air through a heat exchanger or fan coil.

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