The ship sections obtained by planes perpendicular to the centreline. They are drawn on a body plan and form part...
An apparatus used to produce steam, either for the main propulsion or for auxiliary machinery. A boiler is, in...
Fittings on a boiler to ensure its safe operation: safety valves, main steam stop valve, feed check valve, water...
Hard deposit on the interior of a boiler plate or tube. The scale generally contains magnesium and calcium carbonates...
To reduce corrosion and scale formation in boilers, boiler water must be maintained in slightly alkaline conditions...
A temperature at which a liquid boils at a specific pressure. It is usually given at the atmospheric pressure.
LNG tankers are designed to carry natural gas in liquid form at a temperature of – 163°C, close to the vaporization...
BOG combustion systems are used only onboard LNG carriers. Excess BOG is sent to the engine room via gas heaters...
An onboard reliquefaction system that recovers boil-off gas in LNG carriers and returns it to the cargo tanks.
The amount of liquid that is evaporating from a cargo due to heat leakage and expressed in % of total liquid volume...
A rectangular base welded to the deck of the ship, upon which two vertical bitts are welded. Bollards are used...
The thrust developed at zero ahead speed. Bollard pull is the most commonly used measure of ship-assist tugs performance...
Flatbeds used to transport damage-free cargoes such as components, pallets, bales, bundles, reels or crates. Heavy-duty...
Dutiable goods upon which duties have not been paid i.e. goods in transit or warehoused pending customs clearance.
Place on a vessel where goods are placed behind seal until the time that the vessel leaves the port or country...
1. Adhesive and cohesive strength. 2. Connecting together metal parts to ensure electrical continuity.
Curves of areas and moments of sections versus draught, plotted on the sheer plan.
1. A long round spar hinged at its lower end, usually to a mast, and supported by a wire rope or tackle from aloft...
The surface of the outside plating between light and load waterlines. It is the hull area which is most exposed...
The central portion of a propeller to which the blades are attached and through which the shaft end passes.