Identifier: marineen00seatmanualofrich (find matches)
Title: A manual of marine engineering: comprising the design, construction, and working of marine machinery
Year: 1907 (1900s)
Authors: Seaton, Albert Edward, 1848-1930
Subjects: Marine engineering
Publisher: London, C. Griffin and company, limited New York, D. Van Nostrand co.
Contributing Library: University of California Libraries
Digitizing Sponsor: MSN

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e, notwith-standing a very strong advocacy of it by influential persons. Mineral oil iscapable of producing a large quantity of heat, is clean and convenient forstowing, and therefore suitable for yachts and passenger steamers; arrange-ments are now being made for the regular supply of a high flash point cheapoil at foreign and home ports, so that ships can depend on getting theirtanks filled as surely as they can their bunkers. Creosote waste, as well aspetroleum waste, can be burnt quite safely and readily in the furnaces of aboiler by means of special apparatus ; the one invented by Mr. JamesHolden, and used by him so successfully for many years in the locomotivesof the G.E.R. Co., London, is shown in detail in fig. 129. Refuse from thepetroleum works in South Russia, called astatki, has for very many yearsbeen used on the steamers of the Caspian and Volga for fuel. Of coals there are several distinct kinds, and many more qualities. Thereare five distinct varieties, known as— 360
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W THE VALUE OF A FUEL. 361 (1) Anthracite, consisting almost entirely of free carbon, generally jetblack in appearance, but sometimes greyish like black lead, has a specificgravity generally of about 1-5, but sometimes as high as 19; it burns with-out emitting flame or smoke, but requires a strong draught to burn at all.It is capable of evaporating (theoretically) nearly 16 times its weight ofwater, but to obtain good results from it careful stoking is necessary, aswhen suddenly exposed to heat it is very friable, breaks up into small pieces,and falls through the bar-spaces if disturbed much, as it does not cake. Thefires should be worked light when using it, and the coal carefully spread.The heat is very intense and local, so that furnaces intended to burn itshould be high in the crowns and protected at the sides by bricks, fireclay,&c., or else have no air-spaces down the sides. (2) Dry bituminous coal contains from 70 to 80 per cent, of carbon, andabout 15 per cent, of volatili

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