Motive Powers and Their Practical Selection |
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Página 36
SIZES , POWER , AND COST OF MODERN WINDMILLS . EFFECTIVE
HORSEPOWER . Diameter of Wheel . Revolutions per Minute . Cost of Windmill
Cost of Windmill and Gear Ungeared , Suited for Driving Suited for Pump
Machinery ...
SIZES , POWER , AND COST OF MODERN WINDMILLS . EFFECTIVE
HORSEPOWER . Diameter of Wheel . Revolutions per Minute . Cost of Windmill
Cost of Windmill and Gear Ungeared , Suited for Driving Suited for Pump
Machinery ...
Página 78
35 x fall in feet - X . 75 = 33 , 000 effective horse - power of the turbine . Upon
which basis the ... TABLE GIVING THE NUMBER OF CUBIC FEET REQUIRED
PER HORSEPOWER PER MINUTE AT 75 PER CENT . EFFICIENCY . Head in
Feet .
35 x fall in feet - X . 75 = 33 , 000 effective horse - power of the turbine . Upon
which basis the ... TABLE GIVING THE NUMBER OF CUBIC FEET REQUIRED
PER HORSEPOWER PER MINUTE AT 75 PER CENT . EFFICIENCY . Head in
Feet .
Página 80
TABLE OF CUBIC FEET REQUIRED PER MINUTE TO GIVE ONE
HORSEPOWER UNDER EFFECTIVE HEADS FROM I TO 390 FEET .
CALCULATED FOR AN EFFICIENCY OF 80 PER CENT . Head in Feet . 1 ft . 2 ft .
3 ft . 4 ft . 5 ft . 6 ft . 7 ft .
TABLE OF CUBIC FEET REQUIRED PER MINUTE TO GIVE ONE
HORSEPOWER UNDER EFFECTIVE HEADS FROM I TO 390 FEET .
CALCULATED FOR AN EFFICIENCY OF 80 PER CENT . Head in Feet . 1 ft . 2 ft .
3 ft . 4 ft . 5 ft . 6 ft . 7 ft .
Página 130
From the result of above deduct 15 to 20 per cent . to arrive at approximate
effective horse - power . The rule for ascertaining the English indicated
horsepower of an engine is , A = area of piston in square inches . ( See Table of
Areas , p . 42 . ) ...
From the result of above deduct 15 to 20 per cent . to arrive at approximate
effective horse - power . The rule for ascertaining the English indicated
horsepower of an engine is , A = area of piston in square inches . ( See Table of
Areas , p . 42 . ) ...
Página 156
AUTOMATIC High - SPEED HORIZONTAL ENGINES . CYLINDER . Revolutions
per Minute . Effective HorsePower at 80 Lbs . Pressure . Effective Revolu
Horsetions per Power at Minute . 80 Lbs . Pressure . Floor Space Occupied . Bore
Stroke ...
AUTOMATIC High - SPEED HORIZONTAL ENGINES . CYLINDER . Revolutions
per Minute . Effective HorsePower at 80 Lbs . Pressure . Effective Revolu
Horsetions per Power at Minute . 80 Lbs . Pressure . Floor Space Occupied . Bore
Stroke ...
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adopted advantage amount apparatus arranged average boiler calculation cent CHAPTER chimney coal comparative compound condensation consideration construction cost Crown 8vo cubic feet cylinder diameter direct double driving dynamo economical effective horse-power efficiency electric employed engine equal exhaust fall figures fire foot force fuel furnace gallons give given grate head heat heating surface horizontal Horse hour Illustrations increased indicated horse-power iron known latter length less Load machine material Maximum means Minute motor naturally necessary obtained ordinary pipe plates portable practice pressure proper proportions pump quantity shaft single sizes space speed square inch steam Stroke suited supply taken tions tubes turbine turn unit usually valve vaporizer varies various vertical volts Watts weight wheel wide Woodcuts
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Información bibliográfica
| Título | Motive Powers and Their Practical Selection |
| Autor | Reginald Pelham Bolton |
| Editor | Longmans, Green, and Company, 1894 |
| Procedencia del original | Universidad de Wisconsin - Madison |
| Digitalizado | 16 Ago. 2007 |
| Largo | 257 páginas |
| Exportar cita | BiBTeX EndNote RefMan |