14.Flash Steam

20/09/2023

Flash steam is a name given to the steam formed from hot condensate when the pressure is reduced. Flash steam is no different from normal steam, it is just a convenient name used to explain how the steam is formed. Normal or “live” steam is produced at a boiler, steam generator, or waste heat recovery generator – whereas flash steam occurs when high pressure / high temperature condensate is exposed to a large pressure drop such as when exiting a steam trap. High temperature condensate contains an excess of energy which prevents it from remaining in liquid form at a lower pressure. The result is that the excess energy causes a percentage of the condensate to flash.