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A single experimental tank engine was constructed to burn oil in 1902, and 37 engines of four different classes were converted to burn oil between 1946 and 1950. Neither experiment resulted in the long-term use of oil as fuel for steam locomotives. A single pannier tank locomotive was also converted under British Rail in 1958.
Worcester's gas, oil and LPG ranges consist of regular boilers, combination boilers and system boilers; these are wall-hung, floor-standing or externally sited. Worcester's solar water heating range was released in 2005, with the ground source heat pump range being released in 2007 and the air source heat pump range being released in 2008. [10]
Over this was mounted a short saddle tank for the oil fuel. There was no outer firebox, but the 8 ft × 5 ft (2.438 m × 1.524 m) boiler, pressed to 180 psi (1.2 MPa), contained 289 firetubes in the lower part and a large steam space above. As soon as July 1902, it was redesigned with a smaller firebox and a single burner.
Cutaway section of a steam dome, showing the regulator inside. The steam dome is a vessel fitted to the top of the boiler of a steam engine.It contains the opening to the main steam pipe and its purpose is to allow this opening to be kept well above the water level in the boiler.
A fireless steam locomotive is similar to a conventional steam locomotive, but has a reservoir, known as a steam accumulator, instead of a boiler. This reservoir is charged with superheated water under pressure from a stationary boiler. The engine works like a conventional steam engine using the high pressure steam above the water in the ...
Where such a boiler may be heated either by the exhaust gases of the main propulsion plant, or else separately fired when in port (usually by oil rather than coal) it is referred to as a composite boiler. [4] The boiler is a cylindrical vertical water drum with a hemispherical domed top. This domed shape is strong enough not to require staying.
During those times, staged combustion was used because it was a convenient method of ignition, and, likely, there was not much concern about air pollution. A modern application of the principle is the Stratified charge engine, in which a spark ignites a rich mixture and the resulting flame-front ignites the weaker mixture elsewhere in the cylinder.
A shell or flued boiler is an early and relatively simple form of boiler used to make steam, usually for the purpose of driving a steam engine. The design marked a transitional stage in boiler development, between the early haystack boilers and the later multi-tube fire-tube boilers .
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