Henley's Encyclopaedia of Practical Engineering and Allied Trades ...N.W. Henley Pub., Company, 1907 |
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Página 18
... Fahr . is not easy to say exactly , but probably it ranges as high as 1,700 ° or even more . At such tem- peratures all ordinary rules for the flow of steam through pipes become useless . The steam behaves more as a perfect gas in its ...
... Fahr . is not easy to say exactly , but probably it ranges as high as 1,700 ° or even more . At such tem- peratures all ordinary rules for the flow of steam through pipes become useless . The steam behaves more as a perfect gas in its ...
Página 19
... Fahr . , and the feed water was raised to over 400 ° Fahr . by the live steam heater before entering the boiler coils . The boiler evaporates 1,309 lb. of water at a superheat of 800 ° Fahr . per hour . Evaporation per square foot of ...
... Fahr . , and the feed water was raised to over 400 ° Fahr . by the live steam heater before entering the boiler coils . The boiler evaporates 1,309 lb. of water at a superheat of 800 ° Fahr . per hour . Evaporation per square foot of ...
Página 20
... Fahr . with only 5 lb. pressure , while at other times the pressure will be 800 lb. or more , with a temperature below 700 ° Fahr . It may seem to be a paradox , but in practice it requires less surface to condense highly super- heated ...
... Fahr . with only 5 lb. pressure , while at other times the pressure will be 800 lb. or more , with a temperature below 700 ° Fahr . It may seem to be a paradox , but in practice it requires less surface to condense highly super- heated ...
Página 21
... Fahr . , the ports and passages for the steam may be about one half the area usually allowed for saturated steam , owing to the much higher speed with which superheated steam will pass through the ports . For the same reason all joints ...
... Fahr . , the ports and passages for the steam may be about one half the area usually allowed for saturated steam , owing to the much higher speed with which superheated steam will pass through the ports . For the same reason all joints ...
Página 38
... Fahr . can be evaporated from 1 lb. of Scotch coal , with a rate of combustion of 30 lb. per square foot of grate area per hour . The Navy Boiler Com- mittee , when testing the machinery of the Cunard steamer Saxonia , found that the ...
... Fahr . can be evaporated from 1 lb. of Scotch coal , with a rate of combustion of 30 lb. per square foot of grate area per hour . The Navy Boiler Com- mittee , when testing the machinery of the Cunard steamer Saxonia , found that the ...
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angle belt blast block boiler bolts bottom carbon cast iron cent centre combustion crane curved cutters cutting cycloidal cylinder diameter drills driving edges electric employed engine face Fahr fire fitted flanges flues force forging frame friction fuel furnace gases gauge gears grinding grinding machines hammer headstock heat high-speed steel holes hydraulic inch JOHN CRERAR LIBRARY joint joists Lancashire boilers lathe latter lead screw length lever lifting liquid load loam lubrication machine magnet metal milling milling cutters milling machines motor mould moulding box operated oxygen pattern pieces pinion pipe piston pitch plane plate pressure produced pulley pump radius ring riveted rotated screw shaft shown side slide speed spindle square steam steel surface teeth temperature thick tion tube turning valve vary vertical weight wheels worm