The condensate pipeline is at 0.3 Mpa and around 135°C – how can one determine whether there is more water or more steam?
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The steam condensate pipeline operates at 0.3 Mpa and around 135°C; if steam is discharged through the drain, it is equivalent to flashing in the atmosphere, and it will also become steam. Normally, the pipeline is accompanied by steam hammers. How to determine whether there is more water or more steam in the pipeline?
This is actually the relationship between steam pressure and temperature; the saturated temperature of steam at 0.3 Mpa is around 133 degrees, so it should be the case that there is more gas than water!
When the outside temperature drops, or if it is used intermittently, there may be choking sensations or air hammer effects
With a gauge pressure of 0.3 MPA, it should be calculated based on absolute pressure. The temperature is 143.3°, while the temperature inside your pipe is 135 degrees, which is below the saturation temperature of steam; therefore, most of the substance inside the pipe is water. However, the unstable pressure in the pipe causes the hot water to vaporize and turn into steam, and when the pressure rises again, it turns back into hot water. As a result, there is a repeated process of vaporization and re-condensation, so the phenomenon you described is reasonable!
Hello, where can I find this kind of calculation? I want to see more.