Motive Powers and Their Practical SelectionLongmans, Green, and Company, 1894 - 257 páginas |
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Página 16
... - power , nor for boilers the basis of comparative heating and grate surfaces . It is , of course , manifest that mere heating surface with- out regard to its disposition or efficient position , is 16 MOTIVE POWERS .
... - power , nor for boilers the basis of comparative heating and grate surfaces . It is , of course , manifest that mere heating surface with- out regard to its disposition or efficient position , is 16 MOTIVE POWERS .
Página 17
Reginald Pelham Bolton. out regard to its disposition or efficient position , is not a fair means of comparison between different types of boil- ers , but it nevertheless forms the only reasonable compari- son between boilers of the same ...
Reginald Pelham Bolton. out regard to its disposition or efficient position , is not a fair means of comparison between different types of boil- ers , but it nevertheless forms the only reasonable compari- son between boilers of the same ...
Página 37
... efficient work being as follows , the theoretical or calculated power of the water being , for the purpose of comparison , taken at 1.00 . Floating mills .... .30 Undershot wheels ... -35 Poncelet undershot wheel .... .60 Water - wheels ...
... efficient work being as follows , the theoretical or calculated power of the water being , for the purpose of comparison , taken at 1.00 . Floating mills .... .30 Undershot wheels ... -35 Poncelet undershot wheel .... .60 Water - wheels ...
Página 38
... efficiency . 15 X 60 = 90o cub . ft . per min . 900 X 62.4 X 28 33,000 47.63 X 70 = 33.3 effective horse - power . Quantity . To find the actual quantity of water required by any wheel at any given effective horse - power . The ...
... efficiency . 15 X 60 = 90o cub . ft . per min . 900 X 62.4 X 28 33,000 47.63 X 70 = 33.3 effective horse - power . Quantity . To find the actual quantity of water required by any wheel at any given effective horse - power . The ...
Página 53
... efficiency with a fairly good turbine , but where water is over - abun- dant that may not prove a serious consideration . The relative advantages of each form of water - wheel are dealt with in succeeding sections ; and as regards their ...
... efficiency with a fairly good turbine , but where water is over - abun- dant that may not prove a serious consideration . The relative advantages of each form of water - wheel are dealt with in succeeding sections ; and as regards their ...
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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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