Superheated Vapor

superheated vapor

[¦sü·pər′hēd·əd ′vā·pər]
A vapor that has been heated above its boiling point.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Superheated Vapor


a vapor that is obtained by raising the temperature of a substance above the saturation temperature while maintaining a constant pressure.

Superheated water vapor, which is the working substance in steam engines, is produced in the steam superheaters of boiler units. The thermal efficiency of steam engines increases as the temperature of the superheated water vapor is raised. Steel, which is the usual material from which boilers and pipes are made, permits superheating of water vapor up to a temperature of 570°C at pressures up to 25 meganewtons/m2, or 250 kilograms-force/cm2. Specially designed installations can operate at a superheated-vapor temperature of 650°C and a pressure of 30 MN/m2.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Nanodiamonds likely form out of a superheated vapor of carbon atoms in highly energized star-forming regions.
The mixture in the slightly superheated vapor state flows to the COND, exchanges heat with the outside air, thus causing the mixture to condense.
First, the refrigerant flow rate through the evaporator is regulated to ensure that the fluid entering the compressor is in a superheated vapor phase, to protect compressor operation.
The single phase superheated vapor was then brought to the condenser.
It is compressed to the inlet of the second stage compressor at 2.5 bar and discharges at 5.0 bar into the condenser as superheated vapor. It leaves the condenser at 4.7 bar and enters the first expansion valve and from the expansion valve into an economizer drum where it flashes at an intermediate pressure of 3.3 bar.
Meunier (2006) conceived a refrigeration cycle with a coefficient of performance (COP) equal to that of the Carnot refrigerator in which superheated vapor is compressed isothermally.
First of all fluid enters in the tube in its superheated vapor form, and then by condensation it reduces temperature by releasing the heat.
This is a full condensing heat exchange for the refrigeration system, which is physically governed by the mass flow of the refrigeration system's refrigerant times its enthalpy difference from superheated vapor to saturated liquid.
The Xtreme Steam industrial system is a superheated vapor system that deep cleans and sanitizes with saturated dry steam.
The outlet portion has very low heat transfer properties as it is a superheated vapor. The industry uses superheat as a buffer to ensure against compressor slugging.
- not affected by the hop resin and carbon dioxide components in the cooking vapors, injection cooker to lower the temperature of the compressed and thus superheated vapor mixture to the saturation temperature.