Liquid Flowrate over Tray for given Dowcomer Liquid Load Calculator

✖Downcomer Liquid Load refers to the velocity of clear liquid component flowing through the downcomer entrance of a tray.ⓘ Downcomer Liquid Load [Q_D]			+10% -10%
✖Downcomer area refers to the section or passage that allows the liquid phase to flow from the higher tray or stage to the lower tray or stage.ⓘ Downcomer Area [A_d]			+10% -10%

✖Liquid Flow over Tray refers to the volumetric flowrate of liquid component in a tray tower.ⓘ Liquid Flowrate over Tray for given Dowcomer Liquid Load [V]

⎘ Copy

👎

Formula

✖

Liquid Flowrate over Tray for given Dowcomer Liquid Load

Formula

`"V" = "Q"_{"D"}*"A"_{"d"}`

Example

`"0.056478m³/s"="0.5721m/s"*"0.09872m²"`

Calculator

LaTeX

Reset

👍

Download Process Equipment Design Formula PDF PDF Image

Liquid Flowrate over Tray for given Dowcomer Liquid Load Solution

STEP 0: Pre-Calculation Summary

Formula Used

Liquid Flow over Tray = Downcomer Liquid Load*Downcomer Area
V = Q_D*A_d
This formula uses 3 Variables

Variables Used

Liquid Flow over Tray - (Measured in Cubic Meter per Second) - Liquid Flow over Tray refers to the volumetric flowrate of liquid component in a tray tower.
Downcomer Liquid Load - (Measured in Meter per Second) - Downcomer Liquid Load refers to the velocity of clear liquid component flowing through the downcomer entrance of a tray.
Downcomer Area - (Measured in Square Meter) - Downcomer area refers to the section or passage that allows the liquid phase to flow from the higher tray or stage to the lower tray or stage.

STEP 1: Convert Input(s) to Base Unit

Downcomer Liquid Load: 0.5721 Meter per Second --> 0.5721 Meter per Second No Conversion Required
Downcomer Area: 0.09872 Square Meter --> 0.09872 Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V = Q_D*A_d --> 0.5721*0.09872

Evaluating ... ...

V = 0.056477712

STEP 3: Convert Result to Output's Unit

0.056477712 Cubic Meter per Second --> No Conversion Required

FINAL ANSWER

0.056477712 ≈ 0.056478 Cubic Meter per Second <-- Liquid Flow over Tray

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Chemical Engineering » Process Equipment Design » Column Design » Distillation Tower Design » Liquid Flowrate over Tray for given Dowcomer Liquid Load

Credits

Created by Rishi Vadodaria

Malviya National Institute Of Technology (MNIT JAIPUR ), JAIPUR

Rishi Vadodaria has created this Calculator and 200+ more calculators!

Verified by Vaibhav Mishra

DJ Sanghvi College of Engineering (DJSCE), Mumbai

Vaibhav Mishra has verified this Calculator and 200+ more calculators!

< 25 Distillation Tower Design Calculators

Relative Volatility of Two Components Based on Normal Boiling Point and Latent Heat of Vaporization

Go Relative Volatility = exp(0.25164*((1/Normal Boiling Point of Component 1)-(1/Normal Boiling Point of Component 2))*(Latent Heat of Vaporization of Component 1+Latent Heat of Vaporization of Component 2))

Maximum Allowable Vapor Velocity given Plate Spacing and Fluid Densities

Go Maximum Allowable Vapor Velocity = (-0.171*(Plate Spacing)^2+0.27*Plate Spacing-0.047)*((Liquid Density-Vapor Density in Distillation)/Vapor Density in Distillation)^0.5

Column Diameter given Maximum Vapor Rate and Maximum Vapor Velocity

Go Column Diameter = sqrt((4*Vapor Mass Flowrate)/(pi*Vapor Density in Distillation*Maximum Allowable Vapor Velocity))

Tower Cross Sectional Area given Gas Volumetric Flow and Flooding Velocity

Go Tower Cross Sectional Area = Volumetric Gas Flow/((Fractional Approach to Flooding Velocity*Flooding Velocity)*(1-Fractional Downcomer Area))

Minimum External Reflux given Compositions

Go External Reflux Ratio = (Distillate Composition-Equilibrium Vapor Composition)/(Equilibrium Vapor Composition-Equilibrium Liquid Composition)

Maximum Allowable Mass Velocity using Bubble Cap Trays

Go Maximum Allowable Mass Velocity = Entrainment Factor*(Vapor Density in Distillation*(Liquid Density-Vapor Density in Distillation)^(1/2))

Minimum Internal Reflux given Compositions

Go Internal Reflux Ratio = (Distillate Composition-Equilibrium Vapor Composition)/(Distillate Composition-Equilibrium Liquid Composition)

Dry Plate Pressure Drop in Distillation Column Design

Go Dry Plate Head Loss = 51*((Vapor Velocity Based on Hole Area/Orifice Coefficient)^2)*(Vapor Density in Distillation/Liquid Density)

Flooding Velocity in Distillation Column Design

Go Flooding Velocity = Capacity Factor*((Liquid Density-Vapor Density in Distillation)/Vapor Density in Distillation)^0.5

Weep Point Velocity in Distillation Column Design

Go Weep Point Vapor Velocity Based on Hole Area = (Weep Point Correlation Constant-0.90*(25.4-Hole Diameter))/((Vapor Density in Distillation)^0.5)

Liquid Vapor Flow Factor in Distillation Column Design

Go Flow Factor = (Liquid Mass Flowrate/Vapor Mass Flowrate)*((Vapor Density in Distillation/Liquid Density)^0.5)

Downcomer Residence Time in Distillation Column

Go Residence Time = (Downcomer Area*Clear Liquid Backup*Liquid Density)/Liquid Mass Flowrate

Internal Reflux Ratio Based on Liquid and Distillate Flowrates

Go Internal Reflux Ratio = Liquid Reflux Flowrate/(Liquid Reflux Flowrate+Distillate Flowrate)

Column Diameter Based on Vapor Flowrate and Mass Velocity of Vapor

Go Column Diameter = ((4*Vapor Mass Flowrate)/(pi*Maximum Allowable Mass Velocity))^(1/2)

Head Loss in Downcomer of Tray Tower

Go Downcomer Headloss = 166*((Liquid Mass Flowrate/(Liquid Density*Downcomer Area)))^2

Height of Liquid Crest over Weir

Go Weir Crest = (750/1000)*((Liquid Mass Flowrate/(Weir Length*Liquid Density))^(2/3))

Active Area given Gas Volumetric Flow and Flow Velocity

Go Active Area = Volumetric Gas Flow/(Fractional Downcomer Area*Flooding Velocity)

Fractional Downcomer Area given Total Cross Sectional Area

Go Fractional Downcomer Area = 2*(Downcomer Area/Tower Cross Sectional Area)

Fractional Active Area given Downcomer Area and Total Column Area

Go Fractional Active Area = 1-2*(Downcomer Area/Tower Cross Sectional Area)

Internal Reflux Ratio Given External Reflux Ratio

Go Internal Reflux Ratio = External Reflux Ratio/(External Reflux Ratio+1)

Tower Cross Sectional Area given Fractional Active Area

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

Tower Cross Sectional Area given Active Area

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

Clearance Area under Downcomer given Weir Length and Apron Height

Go Clearance Area Under Downcomer = Apron Height*Weir Length

Fractional Active Area given Fractional Downcomer Area

Go Fractional Active Area = 1-Fractional Downcomer Area

Residual Head Loss in Pressure in Distillation Column

Go Residual Head Loss = (12.5*10^3)/Liquid Density

Liquid Flowrate over Tray for given Dowcomer Liquid Load Formula

Liquid Flow over Tray = Downcomer Liquid Load*Downcomer Area
V = Q_D*A_d

What is the Significance of Downcomer in Distillation?

The downcomer in a distillation column is a crucial component that plays a significant role in the overall efficiency and performance of the distillation process. The downcomer is a vertical or inclined pipe or structure that connects two adjacent trays in the column, allowing liquid to flow downward from one tray to the tray below. The downcomer facilitates the smooth flow of liquid from the tray above to the tray below. Proper liquid distribution is essential for achieving uniform coverage of the tray surface, promoting efficient mass transfer, and ensuring effective separation of components. The downcomer helps prevent direct vapor bypass from the upper tray to the tray below. Without the downcomer, vapor could bypass the liquid on the tray, leading to incomplete separation and reduced efficiency. The downcomer ensures that liquid flows through the tray, allowing for effective vapor-liquid contact.

How to Calculate Liquid Flowrate over Tray for given Dowcomer Liquid Load?

Liquid Flowrate over Tray for given Dowcomer Liquid Load calculator uses Liquid Flow over Tray = Downcomer Liquid Load*Downcomer Area to calculate the Liquid Flow over Tray, The Liquid Flowrate over Tray for given Dowcomer Liquid Load formula is defined as the volumetric flowrate of liquid component passing through the downcomer of each tray. Liquid Flow over Tray is denoted by V symbol.

How to calculate Liquid Flowrate over Tray for given Dowcomer Liquid Load using this online calculator? To use this online calculator for Liquid Flowrate over Tray for given Dowcomer Liquid Load, enter Downcomer Liquid Load (Q_D) & Downcomer Area (A_d) and hit the calculate button. Here is how the Liquid Flowrate over Tray for given Dowcomer Liquid Load calculation can be explained with given input values -> 0.056478 = 0.5721*0.09872.

FAQ

What is Liquid Flowrate over Tray for given Dowcomer Liquid Load?

The Liquid Flowrate over Tray for given Dowcomer Liquid Load formula is defined as the volumetric flowrate of liquid component passing through the downcomer of each tray and is represented as V = Q_D*A_d or Liquid Flow over Tray = Downcomer Liquid Load*Downcomer Area. Downcomer Liquid Load refers to the velocity of clear liquid component flowing through the downcomer entrance of a tray & Downcomer area refers to the section or passage that allows the liquid phase to flow from the higher tray or stage to the lower tray or stage.

How to calculate Liquid Flowrate over Tray for given Dowcomer Liquid Load?

The Liquid Flowrate over Tray for given Dowcomer Liquid Load formula is defined as the volumetric flowrate of liquid component passing through the downcomer of each tray is calculated using Liquid Flow over Tray = Downcomer Liquid Load*Downcomer Area. To calculate Liquid Flowrate over Tray for given Dowcomer Liquid Load, you need Downcomer Liquid Load (Q_D) & Downcomer Area (A_d). With our tool, you need to enter the respective value for Downcomer Liquid Load & Downcomer Area and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search