Separation principle of the HYSYS separator
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Recently, I worked on a small exhaust gas recovery project, and I used HYSYS to simulate the separator involved. It turned out that, under the ideal model, the diameter and height of the separator were quite large. I tried to find help, but after searching for a long time I still couldn’t figure out on what separation principle his ideal model is based. But in any case, I think that even in an ideal model, it must be based on some degree of separation in micrometers; it’s impossible to say it’s infinitely small. I also noticed another issue: in the rating section, there is information regarding sizing. I changed the diameter and height of the separator, but I found that the flow rates of the liquid and gas components after separation, as shown in the worksheet, did not change.
The parameter settings on the rating page are primarily intended for use in dynamics mode and are unrelated to steady state
I’m not quite sure what the person above meant. The first point, about changing the size of the rating, is understandable, but as for the second point, changing the value of c… I don’t get it. The parameters in the over setup have changed, both the worksheet and its dimensions have changed, and those changes are not reasonable at all.
These problems are very likely to be software bugs; it is recommended to report these issues to Aspen Company
I’m using version D ^_^; I’m not sure if the official version has this issue, or if it’s a problem with my settings. HYSYS shouldn’t have such basic bugs!
And then, how did he determine the role of the screen in the separator? What is the diameter of the pores in the mesh, or in other words, what is its mesh count? In the ideal model, what is the relationship between his separated particles and the pore size of the mesh?
1) It is recommended that the original poster use legitimate software, so as to receive corresponding technical support! If bugs are found in the software, they can be reported to the software company for correction. 2) Any software may have various bugs, and it is through continuous improvement that software evolves and grows stronger!
The pressures in the gas and liquid phases can be different; in practical situations, is this due to the wire mesh demister?
I haven’t paid attention to the difference in their pressures either, because generally there is no pressure gauge on his inlet, nor is there one on the liquid-phase outlet. But in theory, the pressure at the liquid-phase outlet should also be different from that at the gas-phase outlet, right? Pressure energy, potential energy, and kinetic energy convert into one another; in my opinion, the pressure in the liquid phase is greater than the outlet pressure in the gas phase.