Identifier: canesugartextboo00deer (find matches)
Title: Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products
Year: 1921 (1920s)
Authors: Deerr, Noël, 1874-
Subjects: Sugar
Publisher: London, N. Rodger
Contributing Library: The LuEsther T Mertz Library, the New York Botanical Garden
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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cent. Again, let a quantity of fuel be burnt such that the waste gases passaway at 500 F., and let the heating surface be 5007 sq. ft. Let double thequantity of fuel be burnt, or the original quantity per 2503 sq. ft. Thisarea is found from the graph to correspond to a temperature of 680° F.,and to an efficiency of 76 • o : that is to say, doubling the fuel capacity ofa furnace only decreases the efficiency from 80 • i per cent, to 76 • o per cent.In other words, a steam-producing plant is a very elastic system capable ofcarrjdng great overloads with relatively very small decrease in efficiency. This discussion is very incomplete and treats of heat transfer by con-ductance only, and also reflects the question of radiation losses. It has beenintroduced rather to present the general principle involved, along with theengineering problem, namely the determination of the economic heatingsurface, questions of first cost of installation as well as fuel consumption BAGASSE AS FUEL 461
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T^^ T^T ■ II ; 1^ ! 1 ■ !; --U-M III; ■^ u 5a —*——1—— ; 1 ... . . .. S i 1 I ^ 1 1 ) . __t 1 1 1 i -^-4- ~rn— ^t —>—!—^— —!- *i! 1 1 rHzii 1 1 1 i ;ft 1 1 ! i —1—j 1 i 1^ ! 1 l«5 1 i ! 1 462 CHAPTER XXIII being considered. For more detailed general treatments reference may bemade to Kents Steam Boiler Economy, and to Kreisinger and Ray,Bull. 18, U.S. Bureau of Mines. Steam Value of Bagasse.—It is a matter of observation among those whohave had an extended experience in cane sugar factories that at times thebagasse steams much worse than at others. Not only is there an in-sufficient production of steam for the wants of the factory, but there is diffi-culty in burning the bagasse. In Demerara, Mauritius, and Hawaii, the

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