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The snifting valves may be mounted directly on the cylinders or steam chests. The drawback of this arrangement is that they admit cold air which cools the cylinders and leads to condensation when the steam is turned on again. If a superheater is fitted, one or two snifting valves may be mounted on the "wet" side of the superheater header.
A steam boiler evaporates liquid water to form steam, or gaseous water, and requires frequent replenishment of boiler feedwater for the continuous production of steam required by most boiler applications. Water is a capable solvent, and will dissolve small amounts of solids from piping and containers including the boiler.
The sudden dispersion and projection of the water in the boiler against the bounding surfaces of the boiler is the great cause of the violence of the results: the dispersion, being caused by the momentary generation of steam throughout the mass of the water, and in its efforts to escape, it carries the water before it, and the combined momentum ...
In a steam engine, cutoff is the point in the piston stroke at which the inlet valve is closed. On a steam locomotive, the cutoff is controlled by the reversing gear.. The point at which the inlet valve closes and stops the entry of steam into the cylinder from the boiler plays a crucial role in the control of a steam engine.
A non-return valve where the feedwater enters the boiler drum. They are usually mounted halfway along the boiler drum, or else as a top feed, but away from the firebox, so as to avoid stressing it with the shock of cold water. Cladding The layer of insulation and outer wrapping around a boiler shell, particularly that of a steam locomotive.
Littoral explosion at Waikupanaha ocean entry at the big island of Hawaii was caused by the lava entering the ocean. A steam explosion is an explosion caused by violent boiling or flashing of water or ice into steam, occurring when water or ice is either superheated, rapidly heated by fine hot debris produced within it, or heated by the interaction of molten metals (as in a fuel–coolant ...
Etching of damage from a boiler explosion in Newark, New Jersey in 1867 This is a list of steam boiler explosions such as railway locomotive , marine transport (military and civilian), and stationary power:
Steam pressure was supposed to be reduced during a landing, but this would make it more difficult to get off to a fast start, so too often pressure was kept up even though the engines weren't running to relieve the pressure by use of the steam generated by the boiler. [5] Under these circumstances, boiler explosions were much more likely.
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