Why is it okay to use 350 kg/h of high-pressure steam at the bed inlet without worrying about water vapor condensation?
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Here is what I read in a document: Why is it okay to use 350 kg/h of high-pressure steam at the bed inlet for protection, without worrying about water vapor condensation? The normal temperature and pressure at the inlet of the protection bed are 87 degrees and 8.77 MPa ； The saturated pressure of water at that temperature and pressure is determined; this pressure is used as the partial pressure of water vapor at the inlet of the protection bed. Based on the normal gas flow rate, the standard volume of saturated water vapor can be calculated, and by multiplying this value by the density at that temperature, it can be determined that the saturated water content is approximately 1270 kg, which is much higher than the amount added. Therefore, no condensation of water will occur after the steam is mixed in. I can’t understand it at all! ~ Why is it calculated this way? What is the basis for this calculation? And why does the resulting value ensure that no water will precipitate?
Reply to 1# konakona: I’ve been looking at it for a long time but still can’t understand it. Should I ask more questions, or should I give you some wealth instead?
Are you from Jutai? The partial pressure of the 350 kg/h water vapor you are adding does not reach the saturated vapor pressure, so it will not condense. I’m not sure if this explanation is clear enough
Reply to 3# ivu800: I don’t quite understand it; I mainly want to know how the calculation method above was derived
First, the amount of steam in the system can be determined based on the volume of steam added, expressed as a volume percentage. The partial pressure of water is obtained by multiplying the percentage volume of steam obtained by the system pressure. Check the table again to see if the saturated vapor pressure of water at the system temperature is greater than the partial pressure of water in the system; if it is, no condensation will occur, while if it is smaller, condensation will take place. I’m not sure if it’s understood.
Is that the hydrolytically absorbent protective bed provided by Casari?
Thanks to the explanations upstairs, I now fully understand it. Thank you!