Is there a relationship between steam temperature and pressure?
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My system is equipped with superheated steam at 1.0 MPA and a temperature of around 350 degrees. If this steam is used to purge the tower, will the temperature inside the tower also be around 350 degrees? Is there any relationship between the temperature of the steam inside the tower and its pressure? Does reducing the venting from the tower result in higher pressure of the steam inside the tower, thereby increasing its temperature? Thank you, extra points
If a large amount of steam is used for purging, and the purging is carried out for a sufficient length of time, a large volume of steam will be discharged from the top of the tower, allowing the temperature inside the tower to reach 342 degrees (the temperature when the steam pressure is reduced to atmospheric pressure). If the venting from the tower is reduced, the pressure of the steam inside the tower increases, and the amount of steam entering the tower decreases; as a result, the temperature inside the tower may not rise that high (this depends on the tower’s heat dissipation capabilities). In short, the temperature inside the tower is related to the amount of steam passing through it and the amount of heat dissipated by the tower.
This is related to the steam supply rate, vent rate, and heat loss. Theoretically, it is impossible to reach 350 degrees as long as there is heat loss.
The temperature and pressure of superheated steam are not inherently corresponding to each other. In your case, the temperature inside the tower is related to the flow rate; since the heat dissipation doesn’t change much, the higher the flow rate, the higher the temperature, but it cannot exceed 350 degrees. If you reduce the opening, the flow rate will be low and the temperature will only drop.
What was said upstairs is correct – the temperature and pressure of superheated steam are not directly related to each other. The temperature inside the tower is only related to the heat dissipation rate and the steam flow rate.
Agree with the person above – the temperature and pressure of superheated steam are not directly related. The temperature inside the tower is only related to the heat dissipation rate and the steam flow rate“
Does a higher vent volume cause the tower temperature to drop faster, while a lower vent volume results in a higher temperature?
Steam serves as the heat source; when the amount of steam vented is high, the heat supplied to the tower exceeds the heat losses, and as a result the temperature rises； If the vent volume is small, the heat obtained from heat exchange between the tower and steam is less than the heat loss, and the temperature of the tower will drop. If the tower is well insulated and experiences minimal heat loss, it has an effect similar to that of warming steam pipes; this allows the amount of steam vented to be reduced gradually, thereby minimizing the loss of thermal energy due to pressure reduction. A few thoughts, not sure if they are correct. Sorry for the joke
You did this to prevent water from being inside the tower, right? Superheated steam at 1.0 MPA and a temperature of around 350 degrees is used to purge the tower; the temperature inside the tower remains below 350 degrees. At this point, the temperature and pressure of the steam inside the tower correspond to the saturated state. Keep the tower vent open at a low level; this way, the pressure of steam inside the tower cannot rise, nor will the temperature of the steam be high.
You did this to prevent water from being inside the tower, right? Superheated steam at 1.0 MPA and a temperature of around 350 degrees is used to purge the tower; the temperature inside the tower remains below 350 degrees. At this point, the temperature and pressure of the steam inside the tower correspond to the saturated state. Keep the tower vent open at a low level; this way, the pressure of steam inside the tower cannot rise, nor will the temperature of the steam be high.