Rocks & mirror
WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

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251 results

Redwood seconds

marine

A unit of measurement of kinematic viscosity when a Redwood viscosimeter is used. Standard temperatures of 21°C for lubricating oil and 37°C for fuel oils are used.

Reefer vessel LOMBOK STRAIT

marine

In August 2002, Seatrade Groningen took delivery of the innovative reefer vessel LOMBOK STRAIT built by CSBC Taiwan.

Reefer vessel, refrigerated cargo ship

marine

A vessel designed to carry goods requiring specific climatic conditions during transport, such as meat, fruit and fish.

Reefer/container vessel CARMEL ECOFRESH

marine

The hybrid reefer/container vessel CARMEL ECOFRESH, built by the Portuguese shipyard Estaleiros Navais de Viana do Castelo, is fitted with the first Wärtsilä Sulzer RT-flex60C main engine.

REFCON system

marine

The monitoring and alarm system, which registers complete history of individual reefer containers, recording all important parameters and storing the data in a log file.

Reference line

marine

A virtual line displayed on the radar screen separating the fairway for inbound and outbound vessels so that they can safely pass each other.

Refined coal

energy

Refined coal is the product of the application of a coal-upgrading technology that removes moisture and certain pollutants from lower-rank coals such as sub-bituminous and lignite (brown) coals and raising their calorific values.

Refit

marine

A complete maintenance and refurbishing process usually requiring the equipment overhaul and repair, cleaning and painting.

Reflectance

energy

The reflectance of the surface of a material is its effectiveness in reflecting radiant energy.

Reflected ray

energy

The reflected ray corresponding to a given incident ray, is the ray that represents the light reflected by the surface.

Reflection seismology

energy

Reflection seismology (or seismic reflection) is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth's subsurface from reflected seismic waves.

Refracted ray

energy

The refracted ray or transmitted ray corresponding to a given incident ray represents the light that is transmitted through the surface.

Refractive index

energy

In optics, the refractive index (also known as refraction index or index of refraction) of a material is a dimensionless number that describes how fast light travels through the material.

Refractory

energy

A refractory material or refractory is a material that is resistant to decomposition by heat, pressure, or chemical attack, and retains strength and form at high temperatures.

Refractory metals

energy

Refractory metals are a class of metals that are extraordinarily resistant to heat and wear.

Refrigerant

energy

A refrigerant is a working fluid used in the refrigeration cycle of air conditioning systems and heat pumps where in most cases they undergo a repeated phase transition from a liquid to a gas and back again.

Refrigerated container, reefer box

marine

An insulated shipping container designed to carry cargoes requiring temperature control. It is fitted with a refrigeration unit which is connected to the ship electrical supply.

Refrigerated fish carriers

marine

Fish processing vessels, fishing vessels, and mother ships of fishing fleet which are provided with facilities for freezing fish and their products.

Refrigerated storage spaces

marine

Spaces designed for the storage of perishable cargo. Refrigerated cargo spaces are intended to transport perishable cargo while refrigerated stores are intended to preserve perishable foods for shipboard use.

Refrigeration

marine

A process in which the temperature of a space or its contents is reduced to below the one of their surroundings.

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