Motive Powers and Their Practical SelectionLongmans, Green, and Company, 1894 - 257 páginas |
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Página 2
... loss of their clients and themselves , and it is , per- haps , not going too far to say that the majority of small motive powers are decided upon , from this cause , in a somewhat hap - hazard manner . It will be within the knowledge of ...
... loss of their clients and themselves , and it is , per- haps , not going too far to say that the majority of small motive powers are decided upon , from this cause , in a somewhat hap - hazard manner . It will be within the knowledge of ...
Página 18
... of power of electric energy , it is always necessary to bear in mind those losses which occur in all mechanism , due to friction , imperfections , and leakage . Thus , 10 effective horse - power employed to rotate 18 MOTIVE POWERS .
... of power of electric energy , it is always necessary to bear in mind those losses which occur in all mechanism , due to friction , imperfections , and leakage . Thus , 10 effective horse - power employed to rotate 18 MOTIVE POWERS .
Página 19
... loss by friction , which must be allowed for , and of which tables are given , rendering elaborate calcula- tion unnecessary . Then , the supply of a given quantity of electricity , say a number of Watts , to a motor will not result in ...
... loss by friction , which must be allowed for , and of which tables are given , rendering elaborate calcula- tion unnecessary . Then , the supply of a given quantity of electricity , say a number of Watts , to a motor will not result in ...
Página 27
... LOSSES IN PUMPS . mp Single barrel pump . worked by a strong pony Double barrel pump worked by one pony . Treble barrel pump ( worked by one pony . Single barrel pump w'rk'd by a strong horse . Double barrel pump worked by a strong ...
... LOSSES IN PUMPS . mp Single barrel pump . worked by a strong pony Double barrel pump worked by one pony . Treble barrel pump ( worked by one pony . Single barrel pump w'rk'd by a strong horse . Double barrel pump worked by a strong ...
Página 38
... loss of work in the wheel or motor . Low falls are sometimes stated in pounds pressure per square foot . These are equivalent to heads or falls in feet , as follows : Head or Fall in Feet . Lbs . per Square Foot . Head or Fall in Feet ...
... loss of work in the wheel or motor . Low falls are sometimes stated in pounds pressure per square foot . These are equivalent to heads or falls in feet , as follows : Head or Fall in Feet . Lbs . per Square Foot . Head or Fall in Feet ...
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Términos y frases comunes
50 feet adopted amount ampères apparatus arranged average belt calculation cast-iron cent CHAPTER chimney coal compound engine condensation Cornish boilers cost crank cubic feet cubic foot cylinder Diam driving dynamo economy effective horse-power electric equal evaporated exhaust steam fall feed-water feet per minute flues fuel furnace gas-engine gine given grate area Heads in Feet heating surface HORIZONTAL ENGINES Horse horse-power per hour imperial gallons inch diameter indicated horse-power iron lamp Lancashire Lancashire boilers length Load machine machinery mill motive power motor nominal horse-power oil-engine Pelton Wheel pipes piston plates portable portable engines pounds practical proportions pump purposes quantity of water Revolutions per Minute shaft single-cylinder sizes space speed square feet square foot square inch steam-engine Stroke suited supply temperature thickness tubes turbine valve vary velocity vertical engine volts water-wheels Watts weight wheel Width wind windmill ΙΟ
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