What is the accuracy of using FRI TRAY RATING for calculating tower cross-flow towers?
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Recently, when designing a tower for cross-flow using the FRI TRAY RATING method, I found that there is a significant difference between this rating and the values obtained through the calculations provided in chemical engineering handbooks (the handbook gives a clear liquid layer height of 30 mm, while the software calculates it to be 70 mm)； It was also found that when the opening area remains unchanged while the tower diameter increases (under constant process conditions), the height of the clear liquid layer on the tray increases, and at the same time the flooding point rises from 75% to 85%, which seems to be inconsistent with conventional behavior. Is the calculation result of this software accurate?
It can be said that it is quite conservative
Bro, can you send me one? hfeihyt@163.com