. Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products. rafuel, etc., the writer has come to the conclusion that, as a basis of designreferred to a cane with 10 per cent, of fibre, the economic limit is reachedwhen about i lb. of bagasse with 50 per cent, fibre is burnt per sq. ft. heatingsurface per hour. Under these conditions this is equivalent to 400 sq. surface per ton-cane-hour, and allowing for one boiler in ten beingout of servace for cleaning furnaces, etc., to 450 sq. ft. in round
. Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products. rafuel, etc., the writer has come to the conclusion that, as a basis of designreferred to a cane with 10 per cent, of fibre, the economic limit is reachedwhen about i lb. of bagasse with 50 per cent, fibre is burnt per sq. ft. heatingsurface per hour. Under these conditions this is equivalent to 400 sq. surface per ton-cane-hour, and allowing for one boiler in ten beingout of servace for cleaning furnaces, etc., to 450 sq. ft. in round the fibre in the cane increases, more bagasse is available for fuel andmore will be burnt per sq. ft., with only a small fall in the efficiency, and anincrease in the total amount of steam produced, which will be used up inheating a greater amount of mixed juice following on a greater figures from actual factories all of recent desgn follow :— Hawaii.—Thirteen factories. Average 429 : extremes 350 to 570 sq. ton-cane-hour. Java.—Ten factories. Average 429 : extremes 319 to 569 sq. ft. per Fig. 284 Cuba.—Seventeen factories. Average 532 : extremes 385 to 610 sq. ton-cane-hour. In the taking out of these data the results have been expressed as fire-tubeheating surface, water-tube heating surface being considered as of 20 percent, higher value. The ratio of grate area to heating surface is found to offer wide variation,the lowest ratio the writer has ever observed being i : 54, and the highestI : 343 ; generally this figure is found to be within the limits i : 70 to i : with this ratio is the quantity of bagasse burnt per sq. ft. of gratearea per hour. With a ratio of grate area to heating surface of i : 100, andI lb. bagasse burnt per sq. ft. heating surface per hour, 100 lbs. will be burntper hour per sq. ft. of grate. Of some importance also is the volume of the combustion chamber inrelation to fuel burnt. Diffic
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsugar, bookyear1921
