Rocks & mirror

WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

E

371 results

Economically stranded gas

energy

A volume of gas may be too remote from a market for natural gas, making construction of a pipeline prohibitively expensive or in a region where demand for gas is saturated, and the cost of exporting gas beyond this region is excessive.

Economiser

energy

Economisers are mechanical devices intended to reduce energy consumption, or to perform useful function such as preheating a fluid.

Eco-sufficiency

energy

Eco-sufficiency refers to the concept or strategy to reduce the environmental footprint of modern societies. As a goal, sufficiency is about ensuring that all humans can live a good life without overshooting the ecological limits of the Earth, while at the same time defining what that good life may consist of.

Eddy-current testing

energy

Eddy-current testing is one of many electromagnetic testing methods used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface flaws in conductive materials.

Edge griding

marine

The treatment of the edge before secondary surface preparation.

Edge preparation

marine

The shaping of a plate edge for welding. This may take the form of a V, X, Y, or K edge profile.

Edible oil tanker

marine

A tanker designed for the carriage of edible oils for food industry. The STAR BONAIRE is a sea/river tanker suitable for the carriage of all kind of edible oils.

Edible oils

marine

Cocoa butter, coconut oil, palm oil, peanut oil, rape oil, soya bean oil, sunflower oil. Most of edible oils have a specific gravity of 0.89t/m3.

Edison Electric Light Station

energy

The world's first coal-fired power station generating electricity for public use. It was built at number 57 Holborn Viaduct in central London, by Thomas Edison's Edison Electric Light Company.

Effect of sun angle on climate

energy

The amount of heat energy received at any location on the globe is a direct effect of Sun angle on climate, as the angle at which sunlight strikes Earth varies by location, time of day, and season due to Earth's orbit around the Sun and Earth's rotation around its tilted axis.

Effective clearing of the ship

marine

The ability of the free-fall lifeboat to move away from the ship after free-fall launching without using its engine.

Effective dose (radiation)

energy

Effective dose is a dose quantity in the International Commission on Radiological Protection (ICRP) system of radiological protection.

Effective load-carrying capability (ELCC)

energy

A measurement of a resource’s ability to produce energy when the grid is most likely to experience electricity shortfalls.

Efficiency

energy

Efficiency is the ability to avoid wasting materials, energy, efforts, money, and time in doing something or in producing a desired result.

Efficiency Rudder

marine

A patented semi-balanced rudder developed by Wärtsilä Corporation. The Efficiency Rudder is characterised by a streamlined “torpedo”-shaped bulb on the rudder hornimmediately abaft and coaxial with the propeller hub.

Efficient energy use

energy

Efficient energy use, sometimes simply called energy efficiency, is the goal to reduce the amount of energy required to provide products and services and can also reduce effects of air pollution.

Effluents

energy

Waste or exhaust products from the combustion of fuels.

EIAPP statement of compliance

marine

When testing the engine for NOx emissions, the reference fuel is Marine Diesel Oil (Distillate) and the test is performed according to ISO 8178 cycles.

Ejector

marine

A pump that has no moving parts or a mechanical driver. The pumping action is created as a pressurized fluid, referred to as the motive or operating fluid supplied from an external source, passes through the ejector.

Ekranoplans, also wing-in-ground (WIG) effect crafts

marine

Flying ships pioneered for military purposes in the 1930s by Russian aeronautical engineers. WIG craft flies just above sea level.

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