. American engineer and railroad journal . n,are assumed to be the best diameters of stacks for each ofthe several heights experimented upon, when the exhaustnozzle is on the center line of the boiler. Stating these facts in the form of equations, in which d Isthe diameter of stack in Inches, we have, for the engine ex-perimented upon, the following: For straight stacks 261/2 ins. high: (1, = 15 = .28 X 54, For straight stacks 36% Ins. high: d= = = .29 X 54. For straight stacks 46% ins. high: d3= = .30 X 54. For straight stacks 56% ins. high: d, = 17 = .31 X all of these val
. American engineer and railroad journal . n,are assumed to be the best diameters of stacks for each ofthe several heights experimented upon, when the exhaustnozzle is on the center line of the boiler. Stating these facts in the form of equations, in which d Isthe diameter of stack in Inches, we have, for the engine ex-perimented upon, the following: For straight stacks 261/2 ins. high: (1, = 15 = .28 X 54, For straight stacks 36% Ins. high: d= = = .29 X 54. For straight stacks 46% ins. high: d3= = .30 X 54. For straight stacks 56% ins. high: d, = 17 = .31 X all of these values, the exhaust tip was on the center of HelKht asx .;;; TffTffF : r :;::: : i r r. : m .^M i--- :! .. ■t-^^ ;_ .^_-<, |h :; : -- ■ i -\ -- ft f- ■■ # :: : : 11 J Stack DiaiiKi Eia-. Si DIAGRAMS OF BEST RESULTS—STRAIGHT STACKS. Stack B HeiKht 36K Stack C HclKht t«J stack Diameter. InchesKg. 93 Hcikhl -OX Stack Diameter. InchesFiir. 94. Stai f- :::: f . ;,.. s ?= .... i :::: 0) s3; ::i*i ■-*r- «K-^ 5 ..... -^ 1 DIAGRAMS OF BEST RESULTS—TAPER STACKS. stacks HeiBht36>f Stack C Height 40K Sta*:k Diaiucter. laches g ^-^Fig. 96 ? ■ i£ 5 ; ; :: I :1 f w ■■ ¥ ;::•:; : • ;;;S;:; Diameter. Inches -^^ Fig. 97 stack coresponrling with any given height of stack and posi-tion of nozzle, which can be said to accurately represent theexperimental results, for it is sometimes hard to say whetherone or another of two stacks is the better. For the purpose,therefore, of reducing the various discordant elements to order,that a general law may be formulated, no harm will be done byemploying a fair degree of liberality in interpreting the Stacks.—In order that the best relation of diameterand heights of stack-may be stated, it will at first be necessaryto eliminate variations in the height of the nozzles. Compari-sons will, therefore, firs
Size: 1799px × 1389px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
