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Sospan Dau
The TSHD Sospan Dau is a Dutch trailing suction hopper dredger owned by Sosban BV. The vessel has worked on dredging projects, including offshore aggregates, port maintenance, land reclamation, coastal defense and beach replenishment. The name ''Sospan Dau'' is Welsh and originates from Sosban Fach and Llanelli's tin plating industry, Sospan being the Welsh for Saucepan and ''Dau'' being Welsh for Two as the ship is a successor to the original Sospan. Equipment The ship has a traditional twin propeller stern and bow thruster for manoeuvering and like most trailing dredgers, includes bottom doors for dumping, a dredge engine, a jet water engine, a degassing installation, a suction pipe and associated pipelines and valves. Unique to most dredgers however, is a very large bulbous bow and spud pole for more efficient use of the dredge pump and heading/position keeping during beaching. Projects In 2014 & 2015 the ''Sospan Dau'' created the Cowes Cowes () is an English sea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sosban Fach
Sosban Fach (Welsh for "little saucepan") is a traditional Welsh folk song. It is one of the best-known and most often sung songs in the Welsh language. The song is based on a verse written by Mynyddog in 1873 as part of his song ''Rheolau yr Aelwyd'' ("Rules of the home") — see below. Talog Williams, an accountant from Dowlais, created the song we have today by altering Mynyddog's verse and adding four new verses. The song catalogues the troubles of a harassed housewife. The song is associated with the rugby union club Llanelli RFC and, more recently, the Scarlets regional rugby side. The association derives from Llanelli's tin plating industry, which used to tin-plate steel saucepans and other kitchen utensils as a cheap supply to the British public. During the final years of Stradey Park, the former ground of Llanelli RFC and the Scarlets, the goalposts were adorned with Scarlet saucepans as a tribute to the town's history; the utensils have been transferred to the clubs' n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tin Plating
Tinning is the process of thinly coating sheets of wrought iron or steel with tin, and the resulting product is known as tinplate. The term is also widely used for the different process of coating a metal with solder before soldering. It is most often used to prevent rust, but is also commonly applied to the ends of stranded wire used as electrical conductors to prevent oxidation (which increases electrical resistance), and to keep them from fraying or unraveling when used in various wire connectors like twist-ons, binding posts, or terminal blocks, where stray strands can cause a short circuit. While once more widely used, the primary use of tinplate now is the manufacture of tin cans. Formerly, tinplate was used for cheap pots, pans, and other holloware. This kind of holloware was also known as tinware and the people who made it were tinplate workers. The untinned sheets employed in the manufacture are known as black plates. They are now made of steel, either Bessemer st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dredgers
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger. Dredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Dredges have been classified as suction or mechanical. Dredging has significant environmental impacts: it can disturb marine sediments, leading to both short- and long-term water pollution, destroy important seabed ecosystems, and can release human-sourced toxins captured in the sediment. Descriptio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breakwater (structure)
A breakwater is a permanent structure constructed at a coastal area to protect against tides, currents, waves, and storm surges. Part of a coastal management system, breakwaters are installed to minimize erosion, and to protect anchorages, helping isolate vessels within them from marine hazards such as prop washes and wind-driven waves. A breakwater, also known in some contexts as a jetty, may be connected to land or freestanding, and may contain a walkway or road for vehicle access. On beaches where longshore drift threatens the erosion of beach material, smaller structures on the beach, usually perpendicular to the water's edge, may be installed. Their action on waves and current is intended to slow the longshore drift and discourage mobilisation of beach material. In this usage they are more usually referred to as groynes. Purposes Breakwaters reduce the intensity of wave action in inshore waters and thereby provide safe harbourage. Breakwaters may also be small stru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cowes
Cowes () is an English seaport town and civil parish on the Isle of Wight. Cowes is located on the west bank of the estuary of the River Medina, facing the smaller town of East Cowes on the east bank. The two towns are linked by the Cowes Floating Bridge, a chain ferry. As of 2020 it had an estimated population of 14,724. Charles Godfrey Leland's 19th-century verses describe the towns poetically as "The two great Cowes that in loud thunder roar/This on the eastern, that the western shore". Cowes has been seen as a home for international yacht racing since the founding of the Royal Yacht Squadron in 1815. It gives its name to the world's oldest regular regatta, Cowes Week, which occurs annually in the first week of August. Later, powerboat races are held. Much of the town's architecture is still heavily influenced by the style of ornate building that Prince Albert popularised. History Name The name ''Westcowe'' was attested in 1413 as the name of one of two sandban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulbous Bow
A bulbous bow is a protruding bulb at the bow (or front) of a ship just below the waterline. The bulb modifies the way the water flows around the hull, reducing drag and thus increasing speed, range, fuel efficiency, and stability. Large ships with bulbous bows generally have twelve to fifteen percent better fuel efficiency than similar vessels without them. A bulbous bow also increases the buoyancy of the forward part and hence reduces the pitching of the ship to a small degree. Vessels with high kinetic energy, which is proportional to mass and the square of the velocity, benefit from having a bulbous bow that is designed for their operating speed; this includes vessels with high mass (e.g. supertankers) or a high service speed (e.g. passenger ships, and cargo ships). Vessels of lower mass (less than 4,000 dwt) and those that operate at slower speeds (less than 12 kts) have a reduced benefit from bulbous bows, because of the eddies that occur in those cases; examples include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valves
A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure. The word is derived from the Latin ''valva'', the moving part of a door, in turn from ''volvere'', to turn, roll. The simplest, and very ancient, valve is simply a freely hinged flap which swings down to obstruct fluid (gas or liquid) flow in one direction, but is pushed up by the flow itself when the flow is moving in the opposite direction. This is called a check valve, as it prevents or "checks" the flow in one direction. Modern control valves may regulate pressure or flow downstream and operate on sophisticated automation systems. Valves have many uses, including controlling water for irrigation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pipeline Transport
Pipeline transport is the long-distance transportation of a liquid or gas through a system of pipes—a pipeline—typically to a market area for consumption. The latest data from 2014 gives a total of slightly less than of pipeline in 120 countries of the world. The United States had 65%, Russia had 8%, and Canada had 3%, thus 76% of all pipeline were in these three countries. ''Pipeline and Gas Journals worldwide survey figures indicate that of pipelines are planned and under construction. Of these, represent projects in the planning and design phase; reflect pipelines in various stages of construction. Liquids and gases are transported in pipelines, and any chemically stable substance can be sent through a pipeline. Pipelines exist for the transport of crude and refined petroleum, fuels – such as oil, natural gas and biofuels – and other fluids including sewage, slurry, water, beer, hot water or steam for shorter distances. Pipelines are useful for transporting water fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bow Thruster
Manoeuvering thruster (bow thruster or stern thruster) is a transversal propulsion device built into, or mounted to, either the bow or stern, of a ship or boat to make it more manoeuvrable. Bow thrusters make docking easier, since they allow the captain to turn the vessel to port or starboard side, without using the main propulsion mechanism which requires some forward motion for turning; The effectiveness of a thruster is curtailed by any forward motion due to the Coandă effect. A stern thruster is of the same principle, fitted at the stern. Large ships might have multiple bow thrusters and stern thrusters. Tunnel thrusters Large vessels usually have one or more tunnel thrusters built into the bow, below the waterline. An impeller in the tunnel can create thrust in either direction that makes the ship turn. Most tunnel thrusters are driven by electric motors, but some are hydraulically powered. These bow thrusters, also known as tunnel thrusters, may allow the ship to do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller
A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are specially shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft with an approximately horizontal axis. History Early developments The principle employed in using a screw propeller is derived from sculling. In sculling, a single blade is moved through an arc, from side to side taking care to keep presenting the blade to the water at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llanelli
Llanelli ("St Elli's llan (placename element), Parish"; ) is a market town and the largest community in Carmarthenshire and the Preserved counties of Wales, preserved county of Dyfed, Wales. It is located on the Loughor estuary north-west of Swansea and south-east of the county town, Carmarthen. The town had a population of 25,168 in 2011, estimated in 2019 at 26,225. The local authority was Llanelli Borough Council when the county of Dyfed existed, but it has been under Carmarthenshire County Council since 1996. Name Spelling The anglicised spelling “Llanelly” was used until 1966, when it was changed to Llanelli after a local public campaign. It remains in the name of a local historic building, Llanelly House. It should not be confused with the village and parish of Llanelly, in south-east Wales near Abergavenny. Llanelly in Victoria (Australia), Victoria, Australia was named after this town of Llanelli, using the spelling current at that time. History The beginnings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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