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Algeria: Medium cargo truck Unknown: Locally further developed into self-propelled artillery systems using the D-30 and MT-12 gun systems. [19] SNVI M120 Algeria: Medium cargo truck Unknown: SNVI M230 Algeria: Medium cargo truck Unknown: Mercedes-Benz Actros Germany Algeria: Heavy cargo truck Unknown: Built locally under license SNVI M350 Algeria
The on-board re-liquefaction system reduces LNG losses, which produces economic and environmental benefits. Overall, it is estimated that Q-Flex carriers have about 40% lower energy requirements and carbon emissions than conventional LNG carriers. [4] The capacity of a Q-Flex vessel is between 165,000 m 3 and 216,000 m 3. [5]
A typical LNG carrier has four to six tanks located along the center-line of the vessel. Surrounding the tanks is a combination of ballast tanks, cofferdams and voids; in effect, this gives the vessel a double-hull type design. LNG carriers, like aircraft carriers, are among the most difficult vessels to build, taking as long as 30 months. [24]
Their cargo volume capacity was 27,400 cubic metres (970,000 cu ft), divided between nine prismatic, or prism-shaped, tanks. [1] Unlike the diesel-powered Methane Pioneer , the new ships were powered by a novel system with dual fuel steam turbines , utilising boil-off LNG from the cargo tanks as well as conventional fuel oil. [ 2 ]
As the cargo tanks absorbed heat from the sea, a portion of the cryogenic LNG cargo boils off, changing from a liquid to a vapor (gas). As a result, pressure within the cargo tanks increases; similar to boiling water in a pressure cooker. To prevent rupturing the thin Invar tank material, pressure is controlled by venting the natural gas ...
The pier would have at least two insulated lines, one for loading and/or unloading LNG and one for vapor supply or recovery as the vapor space above the LNG changes as the cargo is transferred. Ship-based or shore-based cryogenic pumps [10] are used to transfer the LNG to/from the LNG storage tanks on shore.
LNG is stored at around -162°C. [14] Q-Max vessels are equipped with an on-board re-liquefaction system to handle the boil-off gas, liquefy it and return the LNG to the cargo tanks. [15] The on-board re-liquefaction system allows a reduction of LNG losses, which produces economic and environmental benefits.
This liquefied condition is used to facilitate the carriage of natural gas over long distances, often by sea, in specialized tanks. LNG port terminals are purpose-built port terminals designed to accommodate large LNG carrier ships designed to load, carry and unload LNG. These LNG terminals are located adjacent to a gas liquefaction and storage ...