Canadian engineer . only rose to a very few per cent, above normal. The aboveefficiency which exceeds the guaranteed figures lay about8 per cent, is remarkable by the fact that it remains above80 per cent, from over-load to one-quarter load. A general de-scription of this plant was given in The Canadian Engineerof August 31st, Igii, where full details of the installation weregiven. TheRobbia plant is situated on the border of Switzerlandand having a capacity of 3,500 when running at a speedof 500 revolutions per minute. This curve is also remarkableon account of the effic
Canadian engineer . only rose to a very few per cent, above normal. The aboveefficiency which exceeds the guaranteed figures lay about8 per cent, is remarkable by the fact that it remains above80 per cent, from over-load to one-quarter load. A general de-scription of this plant was given in The Canadian Engineerof August 31st, Igii, where full details of the installation weregiven. TheRobbia plant is situated on the border of Switzerlandand having a capacity of 3,500 when running at a speedof 500 revolutions per minute. This curve is also remarkableon account of the efficiency remaining a/bove 80 per cent, fromfull load to almost one-ciuarter load. ECONOMY TESTS OF STEAM TURBINES. The table herewith is part of a paper on the PresentState of Development o;f Large Steam Turbines, read at thespring meeting of the American Society of Mechanical Engi-neers by Prof. A. G. Christie, of the University of regard to this phase of the subject; he says:—? The efficiency of a steam turbine may be expressed interms of pounds of steam per kilowatt-hour, as an efficiencyratio or as the required per kilowatt-hour. The steam consumption is dependent on the initial steampressure, its temperature or quality, and the condenser pres-sure. These factors vary in almost every test and the effect ofa variation in each is not the same for all classes of ^^nce, different turbines cannot usually be compared
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishertoron, bookyear1893
