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" The horse power of a steam engine is given by the equation , plan = ~ where p = mean effective pressure in pounds per square inch, l = length of stroke in feet, a = area of piston in square inches, n = number of strokes per minute, or twice the number... "
Proceedings of the American Gas Light Association ... - Página 69
por American Gas Light Association - 1902
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The Marine Engineer, Volumen3

1882
...from the steam inside the cylinder. PLAN _ i„ whkh P = mean effective pressure per square ¡neb, L - length of stroke in feet, A -- area of piston in square inches К = number of strokes per minute, (HP) = indicated horse-powers,-—; = V = volume of cylinder. t...
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The Relative Proportions of the Steam-engine: Being a Rational and Practical ...

William Dennis Marks - 1883 - 215 páginas
...formula gives for any assumed horse-power, mean effective pressure, and number of strokes per minute, inch ; L = length of stroke in feet ; A = area of piston in square inches ; N= number of strokes per minute; (HP) = indicated horse-powers; = V= volume of cylinder in cubic feet. 144 the required...
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The Relative Proportions of the Steam-engine: Being a Rational and Practical ...

William Dennis Marks - 1887 - 283 páginas
...formula gives for any assumed horse-powei, mean effective pressure, and number of strokes per minute, inch ; L = length of stroke in feet ; A = area of piston in square inches ; /T=number of strokes per minute; (HP) = indicated horse-powers; -—— V= volume of cylinder in...
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Arithmetical Physics, Libro 4

Charles Josiah Woodward - 1890
...an engine is generally calculated by the formula PLAN HP where />=mean pressure of steam on piston in pounds per square inch. L = length of stroke in...A = area of piston in square inches. N= number of strokes per minute. The mnemonic word PLAN enables one easily to remember this formula. (See Elementary...
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The American Marine Engineer, Theoretical and Practical: With Examples of ...

Emory Edwards - 1891 - 416 páginas
...HP ci PLAN; • i.- t. of any s1mple eng1ne, namely: ^— 1n wh1ch P = mean effective steam pressure in pounds per square inch; L = length of stroke in feet; A = area of piston in square inches; and N the number of strokes per minute, which is equal to the number of revolutions per minute multiplied...
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English Mechanic and World of Science: With which are ..., Volumen53

1891
...[74177.]— Horse-Power.— Indicated horse-power OO,UUU Where P - average pressure of steam on piston. L = stroke in feet. A = area of piston in square inches. N = number of strokes per minute. Taking the average pressure as half the boiler pressure = 201b., and adding to...
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Annual Report for ... with Accompanying Papers, Volumen14

Iowa Geological Survey - 1904
...medium speed engine can be calculated- by use of the formula: -Horse power = 0.002 x L x A x N wherein L = length of stroke in feet. A = area of piston in square inches. N = nwnber of revolutions per minute. For a simple Corliss engine the corresponding formula is Horsepower=O.0018...
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Transactions - Manchester Association of Engineers

Manchester Association of Engineers, Manchester, Eng - 1898
...tine ~Jlbsolvte Zero In the annexed figure — Let V=working volume of the cylinder in cubic feet, L = length of stroke in feet, A = area of piston in square inches, Pe = mean effective pressure on the piston, N=number of revolutions per minute, p = absolute pressure...
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The Mechanical Engineer's Pocket-book: A Reference Book of Rules, Tables ...

William Kent - 1895 - 1100 páginas
...SINGLECYLINDER. ludicated Horse-power lHP= ^2, 00,000 in which P= mean effective pressure in Ibs. per sq. in.; L = length of stroke in feet; a = area of piston in square inches. For accuracy, one half of the sectional nrea of the piston-rod must he suhtracted from the area of...
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The Arithmetic of the Steam Engine

Edward Sherman Gould - 1897 - 104 páginas
...Also, HP = PLD*NX 0.000048. (27) H. p. = PID*NX 0.000004. (28) In which P = mean effective pressure per square inch ; L = length of stroke in feet ; A...square inches, N= number of revolutions per minute ; D = diameter of piston in inches ; / = length of stroke in inches. INDICATOR DIAGRAMS. It is by means...
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