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Active Area given Gas Volumetric Flow and Flow Velocity Formula

GoActive Area Given Total Area and Fractional Downcomer Area Formula

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Active Area is the area made available for the vapor component to travel in a Tray tower where liquid-vapor contacting takes place. Check FAQs

A a = \frac{G v}{f d \cdot u f}

A_a - Active Area?G_v - Volumetric Gas Flow?f_d - Fractional Downcomer Area?u_f - Flooding Velocity?

Active Area given Gas Volumetric Flow and Flow Velocity Example

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Here is how the Active Area given Gas Volumetric Flow and Flow Velocity equation looks like with Values.

Here is how the Active Area given Gas Volumetric Flow and Flow Velocity equation looks like with Units.

Here is how the Active Area given Gas Volumetric Flow and Flow Velocity equation looks like.

3.8782 = \frac{0.9873}{0.12 \cdot 2.1215}

3.8782m² = \frac{0.9873m³/s}{0.12 \cdot 2.1215m/s}

3.8782 = \frac{0.9873}{0.12 \cdot 2.1215}

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Active Area given Gas Volumetric Flow and Flow Velocity Solution

Follow our step by step solution on how to calculate Active Area given Gas Volumetric Flow and Flow Velocity?

FIRST Step Consider the formula

A a = \frac{G v}{f d \cdot u f}

Next Step Substitute values of Variables

∴

A a = \frac{0.9873m³/s}{0.12 \cdot 2.1215m/s}

Next Step Prepare to Evaluate

∴

A a = \frac{0.9873}{0.12 \cdot 2.1215}

Next Step Evaluate

∴

A a = 3.87823473957106m²

LAST Step Rounding Answer

∴

A a = 3.8782m²

Active Area given Gas Volumetric Flow and Flow Velocity Formula Elements

Variables

Active Area

Active Area is the area made available for the vapor component to travel in a Tray tower where liquid-vapor contacting takes place.

Symbol: A_a

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Active Area

Volumetric Gas Flow

Volumetric Gas Flow is the volumetric flowrate of the vapor/gas phase that travels across the Column undergoing unit process and operations.

Symbol: G_v

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Volumetric Gas Flow

Fractional Downcomer Area

Fractional Downcomer Area refers to the ratio of tower cross sectional area occupied by the downcomers on both side of column.

Symbol: f_d

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Fractional Downcomer Area

Flooding Velocity

Flooding velocity refers to the maximum vapor velocity that exceeds a certain critical value which would result into flooding in a tray tower.

Symbol: u_f

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Flooding Velocity

Other Formulas to find Active Area

Go Active Area Given Total Area and Fractional Downcomer Area

A a = A T \cdot (1 - f d)

Other formulas in Distillation Tower Design category

Go Clearance Area under Downcomer given Weir Length and Apron Height

A ap = h ap \cdot l w

Go Column Diameter Based on Vapor Flowrate and Mass Velocity of Vapor

D c = {(\frac{4 \cdot V W}{π \cdot W max})}^{\frac{1}{2}}

Go Column Diameter given Maximum Vapor Rate and Maximum Vapor Velocity

D c = \sqrt{\frac{4 \cdot V W}{π \cdot ρ V \cdot U v}}

Go Downcomer Residence Time in Distillation Column

t r = \frac{A d \cdot h bc \cdot ρ L}{L w}

How to Evaluate Active Area given Gas Volumetric Flow and Flow Velocity?

Active Area given Gas Volumetric Flow and Flow Velocity evaluator uses Active Area = Volumetric Gas Flow/(Fractional Downcomer Area*Flooding Velocity) to evaluate the Active Area, The Active Area given Gas Volumetric Flow and Flow Velocity formula is defined as the area available for the vapor phase to travel in a column for a known value of volumetric flowrate of vapor/gas phase. Active Area is denoted by A_a symbol.

How to evaluate Active Area given Gas Volumetric Flow and Flow Velocity using this online evaluator? To use this online evaluator for Active Area given Gas Volumetric Flow and Flow Velocity, enter Volumetric Gas Flow (G_v), Fractional Downcomer Area (f_d) & Flooding Velocity (u_f) and hit the calculate button.

FAQs on Active Area given Gas Volumetric Flow and Flow Velocity

What is the formula to find Active Area given Gas Volumetric Flow and Flow Velocity?

The formula of Active Area given Gas Volumetric Flow and Flow Velocity is expressed as Active Area = Volumetric Gas Flow/(Fractional Downcomer Area*Flooding Velocity). Here is an example- 3.878235 = 0.987321/(0.12*2.1215).

How to calculate Active Area given Gas Volumetric Flow and Flow Velocity?

With Volumetric Gas Flow (G_v), Fractional Downcomer Area (f_d) & Flooding Velocity (u_f) we can find Active Area given Gas Volumetric Flow and Flow Velocity using the formula - Active Area = Volumetric Gas Flow/(Fractional Downcomer Area*Flooding Velocity).

What are the other ways to Calculate Active Area?

Here are the different ways to Calculate Active Area-

Active Area=Tower Cross Sectional Area*(1-Fractional Downcomer Area)

Can the Active Area given Gas Volumetric Flow and Flow Velocity be negative?

No, the Active Area given Gas Volumetric Flow and Flow Velocity, measured in Area cannot be negative.

Which unit is used to measure Active Area given Gas Volumetric Flow and Flow Velocity?

Active Area given Gas Volumetric Flow and Flow Velocity is usually measured using the Square Meter[m²] for Area. Square Kilometer[m²], Square Centimeter[m²], Square Millimeter[m²] are the few other units in which Active Area given Gas Volumetric Flow and Flow Velocity can be measured.

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Active Area given Gas Volumetric Flow and Flow Velocity Formula

​GoActive Area Given Total Area and Fractional Downcomer Area Formula

Active Area given Gas Volumetric Flow and Flow Velocity Example

Active Area given Gas Volumetric Flow and Flow Velocity Solution

Active Area given Gas Volumetric Flow and Flow Velocity Formula Elements

Other Formulas to find Active Area

Other formulas in Distillation Tower Design category

How to Evaluate Active Area given Gas Volumetric Flow and Flow Velocity?

FAQs on Active Area given Gas Volumetric Flow and Flow Velocity

Variable Name

GoActive Area Given Total Area and Fractional Downcomer Area Formula