Rocks & mirror
WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

P

423 results

Post-weld heat treatment

marine

Stress relieving operation carried out to reduce the stresses caused by welding. For general fabrication work it is only required when material thickness exceed 30-40mm.

Pot life

marine

The period after mixing the components of two-component paint during which the paint remains usable.

Potential Energy

energy

In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

Potentiometer

energy

A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider.

Potentiometric (servo) instruments

energy

In a potentiometric type of recorder, the direct drive of the marking pen is replaced with a servomechanism where energy to move the pen is supplied by an amplifier.

Pothead

energy

A type of insulated electrical terminal used for transitioning between overhead line and underground high-voltage cable or for connecting overhead wiring to equipment like transformers.

Pound (force)

energy

The pound of force or pound-force (lbf) is a unit of force used in some systems of measurement including English Engineering units and the foot–pound–second system.

Pound (mass)

energy

The pound or pound-mass is a unit of mass used in the imperial, United States customary and other systems of measurement.

Pounds per square inch

energy

The pound per square inch is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.

Pour

marine

The quantity of cargo poured through one hatch opening as one step in the loading plan, i.e. from the time the spout is positioned over a hatch opening until it is moved to another hatch opening.

Pour point

energy

The pour point of a liquid is the temperature below which the liquid loses its flow characteristics.

Powder

marine

A dry substance in the form of very small grains.

Power

marine

The quantity of work done in a defined time or the rate of doing work. When unit work is done in unit time then a unit of power has been used.

Power (physics)

energy

In physics, power is the amount of energy transferred or converted per unit time.

Power actuating system

marine

The hydraulic equipment for supplying power to turn the rudderstock, comprising a steering gear power unit or units, together with the associated pipes and fittings, and a rudder actuator.

Power Buoy

energy

PowerBuoys are used to provide power to offshore payloads generated through ecofriendly means.

Power cable

energy

A power cable is an electrical cable, an assembly of one or more electrical conductors, usually held together with an overall sheath.

Power conditioner

energy

A power conditioner is a device intended to improve the quality of the power that is delivered to electrical load equipment.

Power consumption

energy

Electric energy consumption is the form of energy consumption that uses electric energy.

Power control

energy

The speed at which a wind turbine rotates must be controlled for efficient power generation and to keep the turbine components within designed speed and torque limits.

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