 L = length of stroke, in feet; A = area of piston, in square inches; N = number of strokes per minute = number of revolutions x 2. PLAN " " " 33,000 ' The derivation of this formula is explained, as follows: The area of the piston, in square inches, multiplied...  Science and Industry - Page 1411902Full view - About this book
 | American Gas Light Association - Gas - 1905 - 656 pages
...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,... | |
 | William Dennis Marks - Steam-engines - 1883 - 228 pages
...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... | |
 | Charles Josiah Woodward - Electricity - 1890 - 228 pages
...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... | |
 | Industrial arts - 1891 - 610 pages
...[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... | |
 | Edward Sherman Gould - Steam - 1897 - 126 pages
...H. p. = PID*NX 0.000004. (28) In which P = mean effective pressure per square inch ; L = length of stroke in feet ; A — area of piston in square inches, N= number of revolutions per minute ; D = diameter of piston in inches ; / = length of stroke in inches. INDICATOR... | |
 | Fritz Wilhelm Woll - Agriculture - 1897 - 732 pages
...following formula: 33000 HP = horse power; P = mean effective pressure in the cylinder; L = twice the length of the stroke, in feet; a ~ area of piston in square inches; M = number of revolutions per minute. ON THE PRESERVATION OF MILK AND CREAM BY HEAT. By Dr. HL RUSSELL,... | |
 | International Correspondence Schools - Engineering - 1897 - 346 pages
...= Mean effective pressure in pounds per square inch on the piston during one stroke. L = Length of stroke in feet. A = Area of piston in square inches. N = Number of strokes per minute. D = Diameter of piston in inches. Then, to find the indicated horsepower, PLAN... | |
 | Stephen Roper - Electric engineering - 1899 - 408 pages
...formula ? A. Let HP = horse-power, 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, R = number of revolutions per minute, S = piston speed in feet per minute, d =... | |
 | Stephen Roper - Electric engineering - 1900 - 330 pages
...Horse-power equals -^-^^r , m which 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. Q. Having given the diameter of the cylinder, how would you calculate the area... | |
 | John S. Reid - 1900 - 502 pages
...Cylinder, D. Let P = the mean effective pressure of steam in pounds per square inch = MEP; L = length of stroke in feet; A = area of piston in square inches; N = number of strokes per minute. PLAN Then -- - • • - = IHP or indicated horse-power, and 33000 IHPx 33000 A... | |
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