 | American Gas Light Association - Gas - 1902 - 594 pages
...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... | |
 | Marine engineering - 1882 - 648 pages
...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 - Steam-engines - 1883 - 228 pages
...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... | |
 | William Ripper - Machine design - 1890 - 264 pages
...33000 or, area of piston = — p — ^=-= — IT X l~« X IN When P = mean effective pressure of steam in Ibs. per sq. in. L = length of stroke in feet. A = area of piston in sq. ins. N = number of strokes per minute. The diameter of the cylinder for a given indicated horse... | |
 | Charles Josiah Woodward - Electricity - 1890 - 228 pages
...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.... | |
 | Emory Edwards - Marine engineering - 1891 - 554 pages
...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 - Geology - 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 - Engineering - 1898 - 472 pages
...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... | |
 | International Correspondence Schools - Engineering - 1897 - 346 pages
...Engine. Let P = 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,... | |
 | Edward Sherman Gould - Steam - 1897 - 126 pages
...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 — area of piston in square inches, N= number of revolutions per minute ; D = diameter of piston in inches ; / = length of stroke in inches.... | |
| |
... a = area of piston in square inches, n = number of strokes per minute, or twice the number of revolutions per minute. 
