What is the temperature of steam?
At lower pressures, such as in the upper atmosphere or at the top of high mountains, water boils at a lower temperature than the nominal 100 °C (212 °F) at standard pressure. If heated further it becomes superheated steam.
Saturated (dry) steam results when water is heated to the boiling point (sensible heating) and then vaporized with additional heat (latent heating). If this steam is then further heated above the saturation point, it becomes superheated steam (sensible heating).
- Wet steam is a mixture of steam and liquid water. It exists at a saturation temperature containing more than 5% water. It is said to be a two-phase mix: steam contains droplets of water that have not changed phase.
- Superheated water is liquid water under pressure at temperatures between the usual boiling point, 100 °C (212 °F) and the critical temperature, 374 °C (705 °F). It is also known as "subcritical water" or "pressurized hot water."
- A steam trap is a device used to discharge condensates and non-condensable gases with a negligible consumption or loss of live steam. Most steam traps are nothing more than automatic valves. They open, close or modulate automatically. Have a negligible steam consumption (i.e. being energy efficient)
Saturated Steam Temperatures
- Specific latent heat of vaporisation. The specific latent heat of vaporization is the amount of heat required to convert unit mass of a liquid into the vapour without a change in temperature. For water at its normal boiling point of 100 ?C, the latent specific latent heat of vaporization is 2260 kJ.kg-1.
- Typically, hot food needs to be held above 140 degrees Fahrenheit (exact temperatures may vary by municipality). The key is to use a good thermometer to frequently take the temperature of the hot held food and adjust the steam table accordingly.
- A kip is a US customary unit of force. It equals 1000 pounds-force, used primarily by American architects and engineers to measure engineering loads. Although uncommon, it is occasionally also considered a unit of weight, equal to 1000 pounds, i.e., one half of a short ton.
Updated: 4th November 2019