 | American Gas Light Association - 1902 - 594 σελίδες
...following formula : HP = 3 p LAN P = Mean effective pressure of the steam in pounds per square inch. L = Length of stroke in feet. A = Area of piston in square inches. N = Number of revolutions per minute. In the absence of any indicator cards from which to determine exactly the mean... | |
 | American Gas Light Association - 1905 - 656 σελίδες
...: HP = a ^^N in which P = Mean effective pressure of the steam in pounds per square inch. L=Length of stroke in feet. A = Area of piston in square inches. N = Number of revolutions per minute. The mean effective pressure may be determined exactly by the use of an indicator,... | |
 | 1882 - 648 σελίδες
...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... | |
 | William Dennis Marks - 1883 - 228 σελίδες
...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 common diameter... | |
 | William Dennis Marks - 1887 - 608 σελίδες
...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... | |
 | Charles Josiah Woodward - 1890 - 228 σελίδες
...calculated by the formula PLAN HP where />=mean pressure of steam on piston in pounds per square inch. L = length of stroke in feet. 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 Treatise on Steam,... | |
 | 1891 - 610 σελίδες
...[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 this the eitn pressure... | |
 | Emory Edwards - 1891 - 554 σελίδες
...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... | |
 | 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... | |
 | Manchester Association of Engineers, Manchester, Eng - 1898 - 472 σελίδες
...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 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... 
