In Aspen’s process simulation, is it possible to perform independent block simulations within a single file?
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I would like to ask experts: in Aspen’s process simulation, is it possible to conduct separate batch simulations within a single file? If a process is particularly long and overall simulation does not converge easily, it is necessary to divide it into smaller sections for simulation. How can this be achieved within the same file? If it’s disconnected now, it will show at the bottom right of the file that the input is incomplete and thus calculation cannot be performed. How can I carry out the calculation independently? Thank you! This post was last edited by Huiyu on 2009-3-29 14:43]
Your idea is quite correct; when a long process is difficult to resolve, it can be broken down into smaller parts and calculated one by one. However, your current approach won’t work, because even if you separate those parts, Aspen can still carry out the calculations, but you must fill in all the inputs first. Some of these inputs are the results of previous modules, and they’re not known until the process starts. So it’s possible to break the entire process at appropriate points, calculate one part first, and then add another part once that’s successful, until the whole process is completed. This method is much easier than trying to make adjustments throughout the entire process from the start, and it’s also faster.
But if the process is broken, does that mean the rest has to be deleted? Can’t it be calculated otherwise? Which expert has a good method?
I don’t know any good solution. Anyway, every time I disconnect, the part before that should work fine; there’s no input for the latter half, and at first I wasn’t sure either, so just type in some random stuff – that should ensure it runs； The first half is okay; just input the result of the first half as the input for the second half and then perform the calculation – it’s not that complicated. Last edited by huazig on 2009-3-27 15:22.]
proII can be achieved; it’s not clear whether ASPEN can.
As mentioned above, after disconnecting, enter the content in the input field; once the input is completed, the calculation can be performed. Calculate section by section, and then adjust the results.