Identifier: americanaunivers15beac (find matches)
Title: The Americana : a universal reference library, comprising the arts and sciences, literature, history, biograhy, geography, commerce, etc., of the world
Year: 1903 (1900s)
Authors: Beach, Frederick Converse, 1848-1918 Rines, George Edwin, 1860- Scientific American, inc
Subjects: Encyclopedias and dictionaries
Publisher: New York : Scientific American compiling dept.
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive

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. The tops of the revolving blades reachnearly to the outer casing of the cylinder, andthe stationary blades project inward until theyalmost scrape the revolving shaft or drum. Aseries of turbine wheels on one shaft arethus constituted, each one complete in itself,like a parallel-flow water-turbine; but, unlikea water-turbine, the steam, after performingits work in each turbine, passes on to the next,preserving its longitudinal velocity withoutshock, gradually falling in pressure on passingthrough each row of blades, and gradually ex-panding. There is no rubbing friction and nowearing parts except the bearings on which themain shaft or drum revolves. Following are the net results of the compara-tive trials: Duchess ofHamilton King Edward Coal, I.7S8 tons, 13 cwt. 1.429 tons, 16 cwt Mileage, 15,604 12,116 Miles iier ton. 8.87 8.47Number of days run. III 79Daily average consumption, 15 tons, 17 cwt. 18 tons, 2 cwt. Average speed, i6/t knots. 185^ knots. Tt R )il N i; N A \1<; A TI ON
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TURBIT — TURENNE The success of the King Edward was sopronounced that arrangements were at oncemade to construct other vessels of the sametype, to be engined also with the Parsons tur-bine! Steam-turbines of great size and powerare likely soon to be produced for marmepurposes, now that their performance has beenfound so satisfactory, and their construction ona large scale will enable the engineer promptlyto settle many questions of interest which theearlier work on small machines could not fullysolve. It would seem that the larger the scaleof operation the simpler the problems of designand construction and the easier is the approx-imate of the real to the ideal in perfecting thesystem of energy conversion. Large turbinesare comparatively low in speed of revolution,and it is considered that it would be entirelypracticable to build an ocean steamer of largesize, driven by turbines of 30,000 or 40,000 horse-power at high pressure, or more if needed, atspeeds of revolution as low as 400

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