Abstract
THOUGH to-day in all naval vessels, and in a considerable number of mercantile vessels, water-tube boilers are used, the standard form of boiler for ships, both small and large, has been that with a cylindrical shell and internal cylindrical furnaces, from which the gases pass into vertical combustion chambers and through nests of tubes. Such boilers are sometimes referred to as return-tube boilers, as the smoke returns to smoke - boxes fitted at the same end as the furnace mouths; but to all marine engineers they are just known as marine boilers. The design of this type of boiler involves the consideration of the strength of cylinders, of flat plates, of corrugated furnaces, and of riveted joints; and the dimensions of the various parts are governed by rules laid down in an official document, “Standard Conditions for the Design and Construction of Marine Boilers”, published by H.M. Stationery Office. From the formulæ given in these rules the calculations are made. To obviate the necessity for these calculations, Mr. Walker has prepared a series of 17 charts and 25 tables, from which, once his methods are grasped, readings are the work of a few moments only, and the possibilities of error are practically eliminated. The size of the volume, 13 in. × 10 in., has enabled the charts to be of a sufficiently large scale; they are printed on stout paper, and have been rendered easy for reference. The author has thus provided a reference book which should be of much use for all concerned with the design of marine boilers.
Charts and Data on Marine Boiler Design: a Summary of the Standard Formulae in Chart Form with Tables and Notes.
By H. C. Walker. Pp. xii + 55. (London: Chapman and Hall, Ltd., 1931.) 25s. net.
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Engineering. Nature 128, 962 (1931). https://doi.org/10.1038/128962a0
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DOI: https://doi.org/10.1038/128962a0