How to translate a sentence in PRO/II?
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Dear sea friends, in the pro/ii simulation results, there is the following row: TRAY VAPOR LIQUID VLOAD -- DESIGN -- NEXT SMALLER NEXT LARGER NP M3/S M3/S M3/S DIA, MM FF DIA, MM FF DIA, MM FF ---- ----- ------- ----- ------- ---- ------- ---- ------- ---- -- 2 0.217 0.00498 0.034 896.1 75.0 762. 112.9 914. 71.5 1 3 0.217 0.00497 0.034 895.3 75.0 762. 112.6 914. 71.3 1 4 0.217 0.00496 0.034 894.0 75.0 762. 112.2 914. 71.1 1 What are the translations for “NEXT SMALLER” and “NEXT LARGER”? I found help that contained the following sentence, but I still don’t understand it: PRO/II predicts the exact tray size that meets this requirement, and then calculates the next smaller standard tray size as well as the next larger standard tray size.
Previous, Next; Previous one, Next one; Larger adjacent, Smaller adjacent. I think I understand it, but I can’t express it well. FYI
Thank you. Can it be understood that the optimal diameter is the design diameter? The optimal diameter closest to it is: what are the minimum and maximum diameters that are close to it? Is the theoretically calculated diameter like a set of discrete points?
The original poster has a good understanding. PRO/II predicts the exact tray size (895) to meet this factor, and then calculates the next smaller standard tray size (762) and the next larger standard tray size (914).
Hello. I’d like to ask you for advice. When calculating the diameter of a tower, if done manually, the value obtained by applying the formula is the diameter. When using software for calculations, is it solving multiple equations? Are the three roots obtained from the equations the three diameters of the tower? If not, how are its three diameters calculated? Thank you.
One is the diameter required for theoretical calculations. Then, the two standard diameters that are adjacent to each other (one larger and one smaller) are calculated separately. It’s clearly stated in the notes. PRO/II determines the exact tray size required to meet this criterion, and then calculates the next smaller and next larger standard tray sizes. In industry, the diameter of the tower cannot be designed arbitrarily; it must be selected from a standard series.