Determination of the number of plates
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What is the basis for entering the number of plates and the reflux ratio?
I think the initial value should be based on experience, and then optimized based on the calculation results.
The number of plates is determined at the minimum reflux ratio, while the reflux ratio is determined based on operational requirements and engineering experience.
Equipment investment and operating costs, that is, economic viability, need to be considered.
It often comes from reality and returns to reality. The number of plates and the reflux ratio are aspects of the design that can be varied; there are countless possible combinations. In practice, the same equipment usually employs the same number of plates and reflux ratio, as this is determined by various constraints.
First, enter the total number of theoretical plates based on experience; the reflux ratio isn’t necessarily a variable! So it’s optional! Then converge and adjust the optimization!
It is generally chosen based on experience.