Vertical cross-tube boiler
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A cross-tube boiler was the most common for of small vertical boiler. They were widely used, in the age of steam, as a small donkey boiler, for the independent power of winches, steam cranes etc.[1][2][3]
The boiler has the advantage of simple robust construction, in particular requiring little regular maintenance. It is relatively inefficient, which was not a serious drawback to the purposes for which it was used. However it was also of limited heating surface, thus sustained output power, compared to other boiler designs. For that reason it was rarely used when significant power was required continuously, such as for locomotives. As the boiler is of relatively large internal volume relative to its power, this acts as a transient reserve of steam. Applications such as cranes require steam intermittently, allowing the boiler to recover pressure between lifts.
Construction
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References
- ^ Prof. William Ripper, Sheffield Univ. d.1937 (1913 edition of 1909 book. Originally published in 1889 as "Steam", but later expanded to cover internal combustion engines and so re-titled.). Heat Engines. London: Longmans. pp. 196–197.
{{cite book}}: Check date values in:|date=(help)CS1 maint: numeric names: authors list (link) - ^ Milton, J. H. (1961) [1953]. Marine Steam Boilers (2nd ed.). Newnes. pp. 70–77.
- ^ Stokers Manual ((1912 edition) ed.). Admiralty, via HMSO, via Eyre & Spottiswoode. 1901.
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