Design of a High Speed Steam Engine: Notes, Diagrams, Formulas and Tables, Vol. 1 (Classic Reprint)

It is assumed that the workmanship will be excellent, the parallelism of crank pin and shaft, as well as the alignment of crankshaft bearings, perfect, and that they will be maintained so by good foundations. Order of Calculation. I. Determination of diagram of effective steam pressures on piston of required engine. a. Determination of boiler pressure. b. Determination of clearance, real cut-off and apparent cut-off. c. Determination of back pressure and amount of compression. d. Method of constructing equilateral hyperbola and of determining points on the curves fnf =constant by tabulated coordinates. e. Methods of determining the mean effective pressures of indicator diagrams. .D etermination of the cut-off corresponding to a given horse power when the mean effective pressure pand the total pressure is known for another horse power of the same engine running at the same speed, with same initial pressure ,and same counterpressures. .D iagrams of effective-steam-pressure-on-piston for forward and return strokes. II. Determination of ratio of length of connecting rod to thflt of crank. III. Determination of that mean accelerating force (per of piston) necessary to start reciprocating parts and corresponding to the most uniform tangential pressure on crank pin. a. Determination of acceleration and construction of diagrams of accelerating forces.
(Typographical errors above are due to OCR software and don't occur in the book.)

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