Marine steam engine 4 min read
Quadruple expansion engines.
In many cases in the mercantile marine the stage expansion principle is carried still further, and quadruple expansion engines fitted,…
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Triple expansion engines.
With initial steam pressures above 100 lbs. per square inch, the variation of temperature in each cylinder of an ordinary…
Marine steam engine 2 min read
Vertical (compound) engines.
The vertical type of engine, with cylinders at the top and crank-shaft below, was adopted for merchant ships long before…
Marine steam engine 4 min read
Early screw engines.
The majority of steamers, both war and mercantile, built during the years 1850-60, were fitted with horizontal screw propeller engines…
Marine steam engine 2 min read
Return connecting-rod engines.
This kind of engine was adopted by the majority of marine engineering firms to enable the horizontal cylinders to be…
Marine steam engine 3 min read
Gearing for screw engines and its abandonment
In order to attain the same speed of ship the screw propeller had to be driven at a much greater…
Marine steam engine 3 min read
Defects of paddle-wheels
The paddle-wheel possessed many practical disadvantages which interfered with progress beyond a certain point. Its performance was much affected by…
Marine steam engine 2 min read
Abandonment of side-lever engines
Attempts were soon made to reduce the space required by the machinery, and the side-levers were abandoned and direct-acting engines…
Marine steam engine 2 min read
Introduction of steam war vessels
Steam vessels were introduced into the Royal Navy in the year 1820, when the ‘Monkey,’ a vessel of 210 tons,…
Marine steam engine 2 min read
Side-lever engine.
The propeller used in the earlier steamships was invariably the paddle-wheel, and the type of engine existing and giving satisfaction…
Marine steam engine 5 min read
Modern Steam
The steam turbine continues to be a major factor in electric power generation throughout the world. Even nuclear power plants use the…
Marine steam engine 4 min read
How Steam Technology Works
The Steamship Just as steam revolutionized land transportation with the invention of the locomotive, it also became the dominant power…