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 = revolutions per minute x 2. Higher Arithmetic - Page 163by John Charles Stone, James Franklin Millis - 1917 - 314 pagesFull view - About this book
| 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 exactly... | |
| 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... | |
| 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
...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.... | |
| William Dennis Marks - Steam-engines - 1887 - 608 pages
...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 - 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. (See... | |
| Emory Edwards - Marine engineering - 1891 - 554 pages
...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
...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 - 1893 - 448 pages
....Atmospheric tine -- 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, P.=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,... | |
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