Absolute Pressure before the condensate trap (kN/m2) | Temperature (oC) | Percent Flash Steam of Condensate (%) | |||||
---|---|---|---|---|---|---|---|
Absolute Pressure after the condensate trap (kN/m2) | |||||||
400 | 260 | 170 | 101.33 | 65 | 35 | ||
1500 | 198.3 | 11.3 | 14.0 | 16.4 | 18.9 | 20.4 | 23.2 |
1150 | 186.0 | 8.7 | 11.5 | 13.9 | 16.5 | 18.4 | 20.9 |
800 | 170.4 | 5.5 | 8.2 | 10.8 | 13.4 | 15.4 | 17.9 |
650 | 162.4 | 3.7 | 6.5 | 9.1 | 11.8 | 13.7 | 16.3 |
500 | 151.8 | 1.6 | 4.6 | 7.1 | 9.8 | 11.8 | 14.4 |
400 | 143.6 | 3.0 | 5.5 | 8.3 | 10.3 | 12.9 | |
260 | 128.7 | 2.6 | 5.4 | 7.5 | 10.2 | ||
170 | 115.2 | 2.8 | 5.0 | 7.7 | |||
101.33 | 100 | 2.2 | 4.9 |
A condensate system is vented to the surroundings and the pressure in the condensate system after the condensate traps is 101.33 kN/m2. The absolute steam pressure before the condensate trap is 1150 kN/m2.
According the table above 16.5% of the condensate will evaporate as flash steam after the trap.
Note! Without any flash recovery system the energy in the flash steam will be lost to the surroundings.
Flash steam generation - thermodynamic fundamentals, heat loss, energy recovery and more.
Steam & condensate systems- properties, capacities, pipe sizing, systems configuration and more.
Calculate flash steam generation in condensate pipe lines.
When flash steam is generated and vented to the surroundings a considerable amount of energy is lost
Tutorial to the basic physics behind flash steam generation
When condensate passes steam traps - flash steam is generated.
The flash point of a chemical indicates how easy it may ignite and burn.
Steam table with sensible, latent and total heat, and specific volume at different gauge pressures and temperatures.
The amount of flash steam generated depends on steam pressure and pressure in the condensate lines.
Steam trap selection guide - Float & Thermostatic, Inverted Bucket, Bimetal Thermostatic, Impulse and Thermodynamic Disc steam traps.
A back pressure in a condensate systems will reduce steam trap capacity
An introduction to vapor and steam.
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