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In a steam engine, the superheater further heats the steam generated by the boiler, increasing its thermal energy and decreasing the likelihood that it will condense inside the engine. [1] [2] Superheaters increase the thermal efficiency of the steam engine, and have been widely adopted. Steam which has been superheated is known as superheated ...
Superheated steam was widely used in main line steam locomotives. Saturated steam has three main disadvantages in a steam engine: it contains small droplets of water which have to be periodically drained from the cylinders; being precisely at the boiling point of water for the boiler pressure in use, it inevitably condenses to some extent in the steam pipes and cylinders outside the boiler ...
The original Johnson locomotives were all subsequently renewed as Deeley compounds, including the now-preserved 1000 which was rebuilt and outshopped with a superheater in 1914. Numbered 1000–1044 by both the Midland and LMS companies, British Railways renumbered the Midland series of compounds 41000–41044 after nationalisation in 1948.
For further trials with superheated steam on the Ilsenburg – Wernigerode railway, there was a trials organisation near Wernigerode station. It was here that Schmidt founded the Schmidt Superheated Steam Company (Schmidtsche Heissdampfgesellschaft). By using superheated steam the thermal efficiency of a steam engine could be raised by as much ...
Baldwin 60000 is an experimental steam locomotive built by the Baldwin Locomotive Works in Eddystone, Pennsylvania, in 1926, during the height of the railroading industry.It received its number for being the 60,000th locomotive built by Baldwin.
Longitudinal superheater tubes were placed in the central space between the steam generating tubes. The third area forwards contained superheater headers, the regulators and the smokebox, but no deliberate heating surface. The external boiler casing remained at much the same width throughout, giving an overall triangular, but curved, appearance.
The engine worked as a two-cylinder simple on starting, changing over to compound expansion automatically. A superheater was fitted in 1914, and the engine was rebuilt as a two-cylinder simple in 1917; the new cylinders were outside, 20 by 26 in (510 by 660 mm) of the type used on class H3, driving the leading coupled wheels. It was withdrawn ...
The LSWR 700 class was a class of 30 0-6-0 steam locomotives designed for freight work. The class was designed by Dugald Drummond in 1897 for the London and South Western Railway in England and built by Dübs and Company at that company's Queen's Park works at Polmadie, Glasgow, Scotland.