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Superheating is an exception to this simple rule; a liquid is sometimes observed not to boil even though its vapor pressure does exceed the ambient pressure. The cause is an additional force, the surface tension, which suppresses the growth of bubbles. [4] Surface tension makes the bubble act like an elastic balloon.
Towards the end of the 19th century, when superheating was still a less-than-certain technology, such steam-drying gave the condensation-avoiding benefits of superheating without requiring the sophisticated boiler or lubrication techniques of full superheating. [6] By contrast, water vapor that includes water droplets is described as wet steam.
A radiant superheater is placed directly in the radiant zone of the combustion chamber near the water wall so as to absorb heat by radiation. A convection superheater is located in the convective zone of the furnace, in the path of the hot flue gases, usually ahead of an economizer.
BONUS was a prototype whose objective was to assess the economic and technical feasibility of the integral boiling superheating advanced reactor concept. [3] At the time, it was expected that developing higher-temperature reactors that could superheat steam was the next major step toward the achievement of a competitive status for nuclear power plants relative to fossil-fueled power plants. [3]
Whilst the principle of superheating had been known for a very long time, no practical way had been found to make use of it. In the 1890s, Dr Schmidt began trials of his design of superheater, which was a form of "flame tube" superheater - a single, very large boiler tube of 17.5 inches (440 mm) across had a large number of steam pipes placed ...
Superheating is critical for the operation of compressors because a system lacking it may provide the compressor with a liquid gas mixture, situation that generally leads to the destruction of the gas compressor because liquid is uncompressible. This makes subcooling an easy and widespread source of heat for the superheating process.
Water is a polar molecule, where the centers of positive and negative charge are separated; so molecules will align with an electric field.The extensive hydrogen bonded network in water tends to oppose this alignment, and the degree of alignment is measured by the relative permittivity.
Superheating, in physics; Superheater, for steam engine superheat; Superheat, live 2000 album by Dutch band The Gathering This page was last edited on 9 February ...