The Marine Steam Engine ...Longmans, 1898 - 519 páginas |
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Página 24
... bottom of a vessel containing a fluid , the particles in contact with the bottom are first heated , and become less dense and therefore rise through the superincumbent mass of fluid , allowing cooler particles to take their place ...
... bottom of a vessel containing a fluid , the particles in contact with the bottom are first heated , and become less dense and therefore rise through the superincumbent mass of fluid , allowing cooler particles to take their place ...
Página 29
... bottom of the cylinder are shown . Practically no movement of the piston occurs until the temperature of evaporation is attained , which temperature will depend on the amount of the pressure P produced by the piston on the water . This ...
... bottom of the cylinder are shown . Practically no movement of the piston occurs until the temperature of evaporation is attained , which temperature will depend on the amount of the pressure P produced by the piston on the water . This ...
Página 42
... bottom , and has holes for the discharge of air at the top . When the fires are alight , there is a continuous current of air flowing into the furnace through these plates . Fig . 17 shows another variety , the air being admitted ...
... bottom , and has holes for the discharge of air at the top . When the fires are alight , there is a continuous current of air flowing into the furnace through these plates . Fig . 17 shows another variety , the air being admitted ...
Página 62
... bottoms of the ash- pits could be kept low enough to permit an ample supply of air to pass through the fires for combustion . Good results were obtained from these boilers , and this was due to a great extent to the very roomy furnaces ...
... bottoms of the ash- pits could be kept low enough to permit an ample supply of air to pass through the fires for combustion . Good results were obtained from these boilers , and this was due to a great extent to the very roomy furnaces ...
Página 63
... bottom of the girder is kept well clear of the top plate to facilitate cleaning and circulation of water . In this boiler every alternate tube in half the horizontal rows is a stay tube ( Fig . 35 ) , and these stay the front tube plate ...
... bottom of the girder is kept well clear of the top plate to facilitate cleaning and circulation of water . In this boiler every alternate tube in half the horizontal rows is a stay tube ( Fig . 35 ) , and these stay the front tube plate ...
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 jacket length lever low-pressure cylinder main engines manganese bronze mean effective pressure motion necessary obtained ordinary orifice paddle-wheel piston plates ports position practice prevent propeller pump quantity rate of expansion reduced revolutions per minute riveted Royal Navy 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 zinc
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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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