Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . k- -17-0-In3lde-Dla-k- - -17-6-Bolt-Circle— FIG. I.—METHOD OF ANCHORING SELF-SUPPORTING STEEL STACKS. ity of the stack to handle various quantities of hot gasesdepends upon the velocity and density of the gases and the sec-tional area of the stack. Since the density of the gases de-creases with an increase in temperature, it is evident that toproduce a strong draft the temperature of the gases should beas high as practicable wit


Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . k- -17-0-In3lde-Dla-k- - -17-6-Bolt-Circle— FIG. I.—METHOD OF ANCHORING SELF-SUPPORTING STEEL STACKS. ity of the stack to handle various quantities of hot gasesdepends upon the velocity and density of the gases and the sec-tional area of the stack. Since the density of the gases de-creases with an increase in temperature, it is evident that toproduce a strong draft the temperature of the gases should beas high as practicable without undue loss of heat. Since, how-ever, 550 degrees F. is the temperature at which the maximumweight of gas will be delivered, the temperature will not haveany very appreciable effect in determining the size of thestack. The main points to be considered, therefore, are the heightand area. The height must be great enough to produce suf-ficient draft to burn the kind of fuel to be used at a certaindesired rate of combustion, and the sectional area must belarge enough to carry off the gases produced at this rate ofcombustion. In laying out a stack for boiler


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Keywords: ., bookcentury1900, bookdecade1900, bookidl, booksubjectsteamboilers