The Marine Steam Engine ...Longmans, 1899 - 519 páginas |
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Página 2
... speed of steamships and in the extent of their voyages ; so that at the present day we have ships displacing 19,500 tons , and capable of being driven at a speed of 22 knots by engines developing more than 30,000 indicated horse - power ...
... speed of steamships and in the extent of their voyages ; so that at the present day we have ships displacing 19,500 tons , and capable of being driven at a speed of 22 knots by engines developing more than 30,000 indicated horse - power ...
Página 2
... speed of steamships and in the extent of their voyages ; so that at the present day we have ships displacing 19,500 tons , and capable of being driven at a speed of 22 knots by engines developing more than 30,000 indicated horse - power ...
... speed of steamships and in the extent of their voyages ; so that at the present day we have ships displacing 19,500 tons , and capable of being driven at a speed of 22 knots by engines developing more than 30,000 indicated horse - power ...
Página 3
... speed of 185 ft . per minute . She was followed in 1822 by the Active , ' of 80 nominal horse - power , by the same firm , and in 1823 by the ' Lightning , ' of 100 horse - power , by Messrs . Maudslay , and some others whose names ...
... speed of 185 ft . per minute . She was followed in 1822 by the Active , ' of 80 nominal horse - power , by the same firm , and in 1823 by the ' Lightning , ' of 100 horse - power , by Messrs . Maudslay , and some others whose names ...
Página 4
... speed of 287 ft . per minute , with a maximum I.H.P. of 1,300 . The total weight of the machinery was 275 tons , or 4.23 cwts . per I.H.P. Defects of paddle - wheels - The paddle - wheel possessed many prac- tical disadvantages which ...
... speed of 287 ft . per minute , with a maximum I.H.P. of 1,300 . The total weight of the machinery was 275 tons , or 4.23 cwts . per I.H.P. Defects of paddle - wheels - The paddle - wheel possessed many prac- tical disadvantages which ...
Página 6
... speed of ship the screw propeller had to be driven at a much greater speed than the paddle - wheel , and as it was not possible in the then condition of mechanical engineering to drive the pistons at a sufficiently high speed to enable ...
... speed of ship the screw propeller had to be driven at a much greater speed than the paddle - wheel , and as it was not possible in the then condition of mechanical engineering to drive the pistons at a sufficiently high speed to enable ...
Otras ediciones - Ver todas
The Marine Steam Engine: A Treatise for Engineering Students, Young ... Richard Sennett Sin vista previa disponible - 2018 |
The Marine Steam Engine: A Treatise for Engineering Students, Young ... Richard Sennett Sin vista previa disponible - 2016 |
Términos y frases comunes
action air-pump amount angle arrangement auxiliary Belleville boiler bilge blades boilers bottom cause cent centre coal cock combustion chamber compound engines compression condenser connected considerable crank crank-shaft Crown 8vo curve diameter drain 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 Illustrations increased indicator diagram initial pressure jacket lever low-pressure cylinder manganese bronze marine engines mean effective pressure motion necessary obtained orifice 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 surface condensers temperature triple expansion engines tubes vertical vessels volume water-tube boilers weight
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Página 142 - 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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Página 142 - I intend, in many cases, to employ the expansive force of steam to press on the pistons, or whatever may be used instead of them, in the same manner as the pressure of the atmosphere is now employed in common...