Active Area Given Total Area and Fractional Downcomer Area Solution

STEP 0: Pre-Calculation Summary
Formula Used
Active Area = Tower Cross Sectional Area*(1-Fractional Downcomer Area)
Aa = AT*(1-fd)
This formula uses 3 Variables
Variables Used
Active Area - (Measured in Square Meter) - Active Area is the area made available for the vapor component to travel in a Tray tower where liquid-vapor contacting takes place.
Tower Cross Sectional Area - (Measured in Square Meter) - Tower Cross Sectional Area is the area of Column/Tower where the effective unit process or operations takes place.
Fractional Downcomer Area - Fractional Downcomer Area refers to the ratio of tower cross sectional area occupied by the downcomers on both side of column.
STEP 1: Convert Input(s) to Base Unit
Tower Cross Sectional Area: 0.63 Square Meter --> 0.63 Square Meter No Conversion Required
Fractional Downcomer Area: 0.12 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Aa = AT*(1-fd) --> 0.63*(1-0.12)
Evaluating ... ...
Aa = 0.5544
STEP 3: Convert Result to Output's Unit
0.5544 Square Meter --> No Conversion Required
FINAL ANSWER
0.5544 Square Meter <-- Active Area
(Calculation completed in 00.010 seconds)

Credits

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Created by Rishi Vadodaria
Malviya National Institute Of Technology (MNIT JAIPUR ), JAIPUR
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DJ Sanghvi College of Engineering (DJSCE), Mumbai
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Active Area Given Total Area and Fractional Downcomer Area Formula

​LaTeX ​Go
Active Area = Tower Cross Sectional Area*(1-Fractional Downcomer Area)
Aa = AT*(1-fd)

What is the Significance of Active Area?

When considering the fluid dynamics and vapor-liquid distribution within a distillation column, the term "active area" could refer to the effective cross-sectional area through which the vapor and liquid phases interact. This is particularly relevant in packed columns or trayed columns where the efficiency of mass transfer is influenced by the available area for vapor-liquid contact. Active Area comprises of the contacting area between the liquid and vapor phase during process of distillation or absorption.

How to Calculate Active Area Given Total Area and Fractional Downcomer Area?

Active Area Given Total Area and Fractional Downcomer Area calculator uses Active Area = Tower Cross Sectional Area*(1-Fractional Downcomer Area) to calculate the Active Area, The Active Area Given Total Area and Fractional Downcomer Area formula is defined as actual available area for the liquid-vapor components to undergo their mass transfer process in a tray tower. Active Area is denoted by Aa symbol.

How to calculate Active Area Given Total Area and Fractional Downcomer Area using this online calculator? To use this online calculator for Active Area Given Total Area and Fractional Downcomer Area, enter Tower Cross Sectional Area (AT) & Fractional Downcomer Area (fd) and hit the calculate button. Here is how the Active Area Given Total Area and Fractional Downcomer Area calculation can be explained with given input values -> 0.5544 = 0.63*(1-0.12).

FAQ

What is Active Area Given Total Area and Fractional Downcomer Area?
The Active Area Given Total Area and Fractional Downcomer Area formula is defined as actual available area for the liquid-vapor components to undergo their mass transfer process in a tray tower and is represented as Aa = AT*(1-fd) or Active Area = Tower Cross Sectional Area*(1-Fractional Downcomer Area). Tower Cross Sectional Area is the area of Column/Tower where the effective unit process or operations takes place & Fractional Downcomer Area refers to the ratio of tower cross sectional area occupied by the downcomers on both side of column.
How to calculate Active Area Given Total Area and Fractional Downcomer Area?
The Active Area Given Total Area and Fractional Downcomer Area formula is defined as actual available area for the liquid-vapor components to undergo their mass transfer process in a tray tower is calculated using Active Area = Tower Cross Sectional Area*(1-Fractional Downcomer Area). To calculate Active Area Given Total Area and Fractional Downcomer Area, you need Tower Cross Sectional Area (AT) & Fractional Downcomer Area (fd). With our tool, you need to enter the respective value for Tower Cross Sectional Area & Fractional Downcomer Area and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Active Area?
In this formula, Active Area uses Tower Cross Sectional Area & Fractional Downcomer Area. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Active Area = Volumetric Gas Flow/(Fractional Downcomer Area*Flooding Velocity)
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