The Marine Steam Engine: A Treatise for the Use of Engineering Students and Officers of the Royal Navy |
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Page 5
... increased to from 10 to 15 lbs . per square inch above the atmosphere . The space and weight occupied by the engines were also reduced by improved designs and the use of higher speeds of piston , but the majority of steam vessels afloat ...
... increased to from 10 to 15 lbs . per square inch above the atmosphere . The space and weight occupied by the engines were also reduced by improved designs and the use of higher speeds of piston , but the majority of steam vessels afloat ...
Page 11
... increased even beyond this , in order to attain increased economy , and it may become necessary to again introduce gearing , to reduce the velocity of the screw - shafting , instead of , as in the earlier stages , to increase it . One ...
... increased even beyond this , in order to attain increased economy , and it may become necessary to again introduce gearing , to reduce the velocity of the screw - shafting , instead of , as in the earlier stages , to increase it . One ...
Page 17
... increased , especially in the larger ships in which a long stroke could be obtained . With this type of engine the piston speeds varied from 500 to 665 ft . per minute . To promote economy of fuel the cylinders were usually steam ...
... increased , especially in the larger ships in which a long stroke could be obtained . With this type of engine the piston speeds varied from 500 to 665 ft . per minute . To promote economy of fuel the cylinders were usually steam ...
Page 18
... Increased regularity of turning moment , and conse- quent increased efficiency of the propeller in the water . 3. More economical use of the steam in the cylinders and consequent increase of power from a given expenditure of heat . The ...
... Increased regularity of turning moment , and conse- quent increased efficiency of the propeller in the water . 3. More economical use of the steam in the cylinders and consequent increase of power from a given expenditure of heat . The ...
Page 19
... increased distance ships have been able to steam without exhausting their coal supply , has rendered seagoing mastless armour - clad ships possible . b . The reduced quantity of coal necessary to be carried in the majority of warships ...
... increased distance ships have been able to steam without exhausting their coal supply , has rendered seagoing mastless armour - clad ships possible . b . The reduced quantity of coal necessary to be carried in the majority of warships ...
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Common terms and phrases
absolute pressure action air-pump angle arrangement atmosphere auxiliary back pressure bilge blades brass cause centre coal cock combustion compound engine connected crank crank-shaft curve diameter draught eccentric efficiency equal evaporation exhaust Fahr feed feed-water feet fitted floats friction funnel furnaces gases gear gun-metal heating surface high-pressure cylinder hot-well hydrometer increased indicated horse-power indicator diagrams iron jacket Kingston valves latent heat length low-pressure cylinders marine boilers marine engines mean effective pressure metal motion necessary ordinary orifice paddle-wheel pass pipes piston pitch plates port pounds per square prevent propeller pump rates of expansion reduced represent resistance revolutions per minute Royal Navy safety-valves screw screw-propeller sensible heat shaft ship shown in Fig side slide-valve speed square inch steam pressure steam-pipe steel stokeholds stroke suction sufficient suitable superheated superheater surface condensers temperature thermal units total heat triple expansion engines tubes vertical weight wheel