Rocks & mirror

WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

D

348 results

Deck equipment, deck machinery, hull machinery

marine

A term applied to steering gear, capstans, windlasses, winches, and miscellaneous machinery located on the decks of a ship.

Deck gang

marine

The officers and seamen employed in the deck department. Also called deck crew, deck department, or just deck.

Deck girder

marine

A continuous girder running in a fore-and-aft direction on the underside of deck beams.

Deck log, also called Captain Log

marine

A full nautical record of a ship voyage, noted down at the end of each watch by the deck officer on watch.

Deck officer

marine

It refers to all officers who assist the Master in navigating the vessel when underway, and supervise the handling of cargo when in port.

Deck plating

marine

The plating forming the covering of a deck, considered collectively.

Deck seal

marine

A non-return valve arranged to prevent the back-flow of flammable gases, from cargo tanks, into an inert gas plant.

Deck ship

marine

A ship specially intended to carry cargo exclusively on the deck.

Deck stringer

marine

The strake of deck planting that runs along the outboard edge of a deck.

Deck structure

marine

The deck plating with stiffeners, girders and supporting pillars.

Deck-hand

marine

Seaman who works on the deck and stays in the wheelhouse attending to the orders of the duty officers during navigation and manoeuvring.

Deckhouse

marine

An enclosed erection on or above the weather deck that does not extend from side to side of the ship.

Declaration of security

marine

An agreement reached between a ship and port facility or another ship specifying the security measures to be implemented by both parties.

Decohesion

marine

Breaking within the thickness of a paint film.

Decommisioning

energy

The process of taking assets out of operation as they come to the end of their working life.

Decomposition

energy

Decomposition is the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts.

Decontamination

energy

Decontamination is the process of removing contaminants on an object or area, including chemicals, micro-organisms or radioactive substances.

Deep borehole disposal

energy

Deep borehole disposal is the concept of disposing high-level radioactive waste from nuclear reactors in extremely deep boreholes instead of in more traditional deep geological repositories that are excavated like mines.

Deep charge battery

energy

Deep cycle batteries are used to provide continuous electricity to run electric vehicles such as forklifts or golf carts.

Deep earth temperatures

energy

Relatively constant temperature at a given depth which vary when heat is extracted or rejected by ground loops.

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