Tender (rail)
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Tender (rail)
A tender is a special rail vehicle hauled by a steam locomotive containing its fuel (wood, coal, oil or torrefied biomass) and water. Steam locomotives consume large quantities of water compared to the quantity of fuel, so their tenders are necessary to keep them running over long distances. A locomotive that pulls a tender is called a tender locomotive. Locomotives that do not have tenders and carry all their fuel and water on board are called ''tank locomotives'' or ''tank engines''. A corridor tender is a locomotive tender with a passageway to one side, allowing crew changes on the fly. A brake tender is a tender that is heavy and used (primarily) to provide greater braking efficiency. General functions The largest steam locomotives are semi-permanently coupled by a drawbar to a tender that carries the water and fuel. The fuel source used depends on what is economically available locally. In the UK and parts of Europe, a plentiful supply of coal made this the obvious cho ...
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Sierra Railway 3 Tender
Sierra (Spanish for "mountain range" or "mountain chain" and "saw", from Latin ''wikt:serra#Latin, serra'') may refer to the following: Places Mountains and mountain ranges * Sierra de Juárez, a mountain range in Baja California, Mexico * Sierra de las Nieves, a mountain range in Andalusia, Spain * Sierra Madre (other), various mountain ranges ** Sierra Madre (Philippines), a mountain range in the east of Luzon, Philippines * Sierra mountains (other) * Sierra Nevada, a mountain range in the U.S. states of California and Nevada * Sierra Nevada (Spain), a mountain range in Andalusia, Spain * Sierra de San Pedro Mártir, a mountain range in Baja California, Mexico * Sierra Maestra, a mountain range in Cuba Other places Africa * Sierra Leone, a country located on the coast of West Africa Asia * Sierra Bullones, Bohol, Philippines Europe * Sierra Nevada National Park (Spain), Andalusia, Spain * Sierra Nevada Observatory, Granada, Spain North America * High Sier ...
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Electrification
Electrification is the process of powering by electricity and, in many contexts, the introduction of such power by changing over from an earlier power source. In the context of history of technology and economic development, electrification refers to the build-out of the electricity generation and electric power distribution systems. In the context of sustainable energy, electrification refers to the build-out of super grids and smart grids with distributed energy resources (such as energy storage) to accommodate the energy transition to renewable energy and the switch of end-uses to electricity. The electrification of particular sectors of the economy, particularly out of context, is called by modified terms such as Mass production#Factory electrification, ''factory electrification'', ''household electrification'', ''rural electrification'' and ''railway electrification''. In the context of sustainable energy, terms such as ''transport electrification'' (referring to electric v ...
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Southern Railway (Great Britain)
The Southern Railway (SR), sometimes shortened to 'Southern', was a British railway company established in the 1923 Grouping. It linked London with the Channel ports, South West England, South coast resorts and Kent. The railway was formed by the amalgamation of several smaller railway companies, the largest of which were the London and South Western Railway (LSWR), the London, Brighton and South Coast Railway (LB&SCR) and the South Eastern and Chatham Railway (SE&CR).Bonavia (1987) pp. 26–28 The construction of what was to become the Southern Railway began in 1838 with the opening of the London and Southampton Railway, which was renamed the London & South Western Railway. The railway was noted for its astute use of public relations and a coherent management structure headed by Sir Herbert Walker. At , the Southern Railway was the smallest of the "Big Four" railway companies, the only one to operate entirely in England, and, unlike the others, the majority of its reven ...
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Big Four British Railway Companies
The "Big Four" was a name used to describe the four largest railway companies in the United Kingdom in the period 1923–1947. The name was coined by ''The Railway Magazine'' in its issue of February 1923: "The Big Four of the New Railway Era". The Big Four were: * Great Western Railway (GWR) * London, Midland and Scottish Railway (LMS) * London and North Eastern Railway (LNER) * Southern Railway (SR) The companies were formed as a result of the Railways Act 1921, in a process known as "The Grouping" (of the railways), which came into effect on 1 January 1923. On 1 January 1948, the companies were nationalised to form British Railways as a result of the Transport Act 1947. Characterisation The three larger companies relied heavily on freight (especially coal), as well as long-distance passenger traffic. The Southern Railway, in contrast, was predominantly a passenger railway, which, despite its small size, carried more than a quarter of the total UK passenger traffic. That w ...
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Track Pan
A water trough (British terminology), or track pan ( American terminology), is a device to enable a steam locomotive to replenish its water supply while in motion. It consists of a long trough filled with water, lying between the rails. When a steam locomotive passes over the trough, a water scoop can be lowered, and the speed of forward motion forces water into the scoop, up the scoop pipe and into the tanks or locomotive tender. Origin Steam locomotives consume a considerable amount of water, and the tender or side tanks need to be replenished at intervals. Traditionally the engine water was replenished during station stops, but if it was desired to run long distances without stopping, the requirement to take water was a significant limitation. ''The Railway Magazine'' reported a development by John Ramsbottom: Ramsbottom arranged some experiments and showed that the forward motion of a scoop in a trough of water would force water up a connected pipe and into a tank. He c ...
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New York Central Railroad
The New York Central Railroad was a railroad primarily operating in the Great Lakes region, Great Lakes and Mid-Atlantic (United States), Mid-Atlantic regions of the United States. The railroad primarily connected New York metropolitan area, greater New York and Boston in the east with Chicago and St. Louis in the Midwest, along with the intermediate cities of Albany, New York, Albany, Buffalo, New York, Buffalo, Cleveland, Cincinnati, Detroit, Rochester, New York, Rochester and Syracuse, New York, Syracuse. The New York Central was headquartered in the New York Central Building, adjacent to its largest station, Grand Central Terminal. The railroad was established in 1853, consolidating several existing railroad companies. In 1968, the NYC merged with its former rival, the Pennsylvania Railroad, to form Penn Central. Penn Central went into bankruptcy in 1970 and, with extensive Federal government support, emerged as Conrail in 1976. In 1999, Conrail was broken up, and portions o ...
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Pennsylvania Railroad
The Pennsylvania Railroad ( reporting mark PRR), legal name as the Pennsylvania Railroad Company, also known as the "Pennsy," was an American Class I railroad that was established in 1846 and headquartered in Philadelphia, Pennsylvania. At its peak in 1882, the Pennsylvania Railroad was the largest railroad (by traffic and revenue), the largest transportation enterprise, and the largest corporation in the world. Over its existence, Pennsylvania Railroad acquired, merged with, or owned part of at least 800 other rail lines and companies. At the end of 1926, it operated of rail line;This mileage includes companies independently operated. PRR miles of all tracks, which includes first (or main), second, third, fourth, and sidings, totalled 28,040.49 at the end of 1926. in the 1920s, it carried nearly three times the traffic as other railroads of comparable length, such as the Union Pacific and Atchison, Topeka & Santa Fe railroads. Its only formidable rival was the New York Centra ...
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Water Trough
A water trough (British English, British terminology), or track pan (American English, American terminology), is a device to enable a steam locomotive to replenish its water supply while in motion. It consists of a long trough filled with water, lying between the rails. When a steam locomotive passes over the trough, a water scoop can be lowered, and the speed of forward motion forces water into the scoop, up the scoop pipe and into the tanks or tender (rail), locomotive tender. Origin Steam locomotives consume a considerable amount of water, and the tender or side tanks need to be replenished at intervals. Traditionally the engine water was replenished during station stops, but if it was desired to run long distances without stopping, the requirement to take water was a significant limitation. ''The Railway Magazine'' reported a development by John Ramsbottom (engineer), John Ramsbottom: Ramsbottom arranged some experiments and showed that the forward motion of a scoop in a ...
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Turbopump
A turbopump is a fluid pump with two main components: a rotodynamic pump and a driving gas turbine, usually both mounted on the same shaft, or sometimes geared together. They were initially developed in Germany in the early 1940s. The most common purpose of a turbopump is to produce a high-pressure fluid for feeding a combustion chamber. While other use cases exist, they are most commonly found in liquid rocket engines. There are two common types of pumps used in turbopumps: a centrifugal pump, where the pumping is done by throwing fluid outward at high speed, or an axial-flow pump, where alternating rotating and static blades progressively raise the pressure of a fluid. Axial-flow pumps have small diameters but give relatively modest pressure increases. Although multiple compression stages are needed, axial flow pumps work well with low-density fluids. Centrifugal pumps are far more powerful for high-density fluids but require large diameters for low-density fluids. Histo ...
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Steam Injector
An injector is a system of ducting and nozzles used to direct the flow of a high-pressure fluid in such a way that a lower pressure fluid is entrained in the jet and carried through a duct to a region of higher pressure. It is a fluid-dynamic pump with no moving parts except a valve to control inlet flow. Depending on the application, an injector can also take the form of an ''eductor-jet pump'', a '' water eductor'' or an ''aspirator''. An '' ejector'' operates on similar principles to create a vacuum feed connection for braking systems etc. The motive fluid may be a liquid, steam or any other gas. The entrained suction fluid may be a gas, a liquid, a slurry, or a dust-laden gas stream. Steam injector The steam injector is a common device used for delivering water to steam boilers, especially in steam locomotives. It is a typical application of the injector principle used to deliver cold water to a boiler against its own pressure, using its own live or exhaust steam, repla ...
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Boiler
A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, central heating, boiler-based power generation, cooking, and sanitation. Heat sources In a fossil fuel power plant using a steam cycle for power generation, the primary heat source will be combustion of coal, oil, or natural gas. In some cases byproduct fuel such as the carbon monoxide rich offgasses of a coke battery can be burned to heat a boiler; biofuels such as bagasse, where economically available, can also be used. In a nuclear power plant, boilers called steam generators are heated by the heat produced by nuclear fission. Where a large volume of hot gas is available from some process, a heat recovery steam generator or recovery boiler can use the heat to produce steam, with little or no extra fuel consumed; such a configuration is ...
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