The Marine Steam Engine ...Longmans, 1898 - 519 páginas |
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Página 12
... means for protecting the cylinders have often been fitted . At the present time new engines for the Navy are being made vertical for all classes of vessel . room . Three - cylinder compound engines . As the power of compound engines ...
... means for protecting the cylinders have often been fitted . At the present time new engines for the Navy are being made vertical for all classes of vessel . room . Three - cylinder compound engines . As the power of compound engines ...
Página 17
... means of blowing fans was adopted and continued to the present day , with results that are satisfactory , provided only a moderate pressure of air be used , and by this means the steam generating powers of the boilers have been largely ...
... means of blowing fans was adopted and continued to the present day , with results that are satisfactory , provided only a moderate pressure of air be used , and by this means the steam generating powers of the boilers have been largely ...
Página 25
... means of the thermometer . Latent heat . After this , in order to convert the boiling water into steam , a large quantity of heat has to be expended which does not produce any increase in the temperature . This heat is known as latent ...
... means of the thermometer . Latent heat . After this , in order to convert the boiling water into steam , a large quantity of heat has to be expended which does not produce any increase in the temperature . This heat is known as latent ...
Página 35
... means , such as a fan , this theoretical quantity must be increased by one - half ; and in cases of natural or ordinary chimney draught it must be doubled in order to insure perfect mingling . In practice it is not necessary to ...
... means , such as a fan , this theoretical quantity must be increased by one - half ; and in cases of natural or ordinary chimney draught it must be doubled in order to insure perfect mingling . In practice it is not necessary to ...
Página 36
... . The first plan is now , with our improved instruments , the more accurate and reliable , and is generally carried out , when exact knowledge is important , by means of the bomb calorimeter 36 THE MARINE STEAM - ENGINE.
... . The first plan is now , with our improved instruments , the more accurate and reliable , and is generally carried out , when exact knowledge is important , by means of the bomb calorimeter 36 THE MARINE STEAM - ENGINE.
Términos y frases comunes
action air-pump amount angle arrangement auxiliary Belleville boiler bilge blades boilers bolts bottom cause cent centre coal cock combustion chamber compound engines compression condenser connected considerable crank crank-shaft Crown 8vo curve diameter draught eccentric efficiency evaporation exhaust expansion engines Fahr feed-water fire fitted friction funnel furnace gases gauge gear gunmetal heating surface high-pressure cylinder holes horizontal hydrometer Illustrations increased indicator diagram initial pressure jacket length lever low-pressure cylinder main engines manganese bronze mean effective pressure motion necessary obtained paddle-wheel piston plates ports position practice prevent propeller pump quantity rate of expansion reduced revolutions per minute riveted Royal Navy safety valves screw sea-water shaft ship shown in Fig side slide-valve space speed square inch steam pipes steam pressure steel stokehold stroke suction sufficient surface condensers temperature triple expansion engines tubes vertical vessels volume water-tube boilers weight
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Página 144 - I call the steam vessel, must, during the whole time the engine is at work, be kept as hot as the steam that enters it ; first, by enclosing it in a case of wood, or any other materials that transmit heat slowly ; secondly, by surrounding it with steam, or other heated bodies ; and, thirdly, by suffering neither water, nor any other substance colder than the steam, to enter or touch it during that time...
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