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The only railway use of water-tube boilers in any numbers was the Brotan boiler, invented by Johann Brotan in Austria in 1902, and found in rare examples throughout Europe, although Hungary was a keen user and had around 1,000 of them. Like the Baldwin, it combined a water-tube firebox with a fire-tube barrel.
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.
Boiler tubes are used in: . Fire-tube boiler, a type of boiler in which hot gases from a fire pass through one or more tubes running through a sealed container of water; Water-tube boiler, a type of boiler in which water circulates in tubes heated externally by hot gases from a fire
Internal layout of a three-pass fire-tube boiler. Package boilers are commonly called water or fire tube Boilers. Water tube boilers use convection heating, which draws the heat from the fire source, and passes against the generating tubes of the boiler, causing water inside those tubes to boil off into steam.
The boilers were also mostly used as heat-recovery boilers, from the exhausts of large marine diesel engines, as these operated at a lower temperature than a direct-fired boiler. Some were equipped as composite boilers , heated by exhaust gases when under way or with oil-firing when in port.
A vertical boiler is a type of fire-tube or water-tube boiler where the boiler barrel is oriented vertically instead of the more common horizontal orientation. Vertical boilers were used for a variety of steam -powered vehicles and other mobile machines, including early steam locomotives .
Cochran boiler. A vertical boiler with horizontal fire-tubes is a type of small vertical boiler, used to generate steam for small machinery. It is characterised by having many narrow fire-tubes, running horizontally. Boilers like this have been widely used on ships as either auxiliary or donkey boilers.
A LaMont boiler is a type of forced circulation water-tube boiler [1] in which the boiler water is circulated through an external pump through long closely spaced tubes of small diameter. The mechanical pump is employed in order to have an adequate and positive circulation in steam and hot water boilers.