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A small boiler may be used as an auxiliary boiler when at sea, or a donkey boiler in port. A composite auxiliary boiler does this, using waste heat from the main engines when at sea, or is separately fired when acting as a donkey boiler. Auxiliary boilers were also present in some locomotives, in particular those used in passenger rail service ...
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Three-drum boiler, casing removed. Three-drum boilers are a class of water-tube boiler used to generate steam, typically to power ships. They are compact and of high evaporative power, factors that encourage this use. Other boiler designs may be more efficient, although bulkier, and so the three-drum pattern was rare as a land-based stationary ...
The Lune Valley boiler was a small oil-fired boiler, used by the Lune Valley Engineering Co. of Lancaster, England for steam launches and small steamboats. [7] [8] Each steam generator tube consisted of three turns, giving a greater heating surface for the number of pipe joints to be made. These coils were still arranged in tiers.
DE 4311775 (A1), 1994, Feedwater-preheater construction for preheating temperatures above 100 deg C for steam generators, in particular locomotive-type boilers; DE 19746384 (A1), 1999, Steam locomotive with steam storage boiler coupled to running gear, and used for shunting and industrial purposes
The success to come with stationary steam engines was in no small part based on the experiences with the short-lived railway locomotive production: the locomotives had boilers rated for 50 pounds per square inch (3.4 bar), compared to the normal stationary engine boiler rating at that time of 5 or 10 psi (0.34 or 0.69 bar). [18]
The first 2 lots (117 and 126, locomotives 71–144) were built with number 6 domeless boilers but the rest were built with improved 6A boilers with separate top-feed and steam dome. Both types of boilers were later modified to carry Adams ‘Vortex’ blastpipe to improve steaming.
An unusual rate of wear and number of replacement furnaces supplied for the Heywood locomotives has been put down to this cause. [2] The boiler did see some popularity in mainland Europe, as a boiler for small portable engines. A similar boiler, but arranged with return fire-tubes, was built in America as the Huber boiler.