Height of Overall Gas Phase Transfer Unit in Packed Column Calculator

✖Molar Gas Flowrate is defined as the Molar flowrate per unit cross sectional area of the gaseous component.ⓘ Molar Gas Flowrate [G_m]			+10% -10%
✖Overall Gas Phase Mass Transfer Coefficient describes the rate at which mass is transferred between the gas and liquid phases within the packed column.ⓘ Overall Gas Phase Mass Transfer Coefficient [K_G]			+10% -10%
✖Interfacial Area per Volume refers to the surface area of the interface between the two phases (usually a liquid and a gas) per unit volume of the packing material.ⓘ Interfacial Area per Volume [a]			+10% -10%
✖Total Pressure is the actually pressure at which the system is operating a particular process.ⓘ Total Pressure [P]			+10% -10%

✖Height of Transfer Unit is a measure of the effectiveness of mass transfer between two phases (e.g., gas-liquid or liquid-liquid) in a separation or reaction process.ⓘ Height of Overall Gas Phase Transfer Unit in Packed Column [H_OG]

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Formula

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Height of Overall Gas Phase Transfer Unit in Packed Column

Formula

`"H"_{"OG"} = ("G"_{"m"})/("K"_{"G"}*"a"*"P")`

Example

`"0.612992m"=("2.0318103mol/s*m²")/("1.23580m/s"*"0.1788089m²"*"15Pa")`

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Height of Overall Gas Phase Transfer Unit in Packed Column Solution

STEP 0: Pre-Calculation Summary

Formula Used

Height of Transfer Unit = (Molar Gas Flowrate)/(Overall Gas Phase Mass Transfer Coefficient*Interfacial Area per Volume*Total Pressure)
H_OG = (G_m)/(K_G*a*P)
This formula uses 5 Variables

Variables Used

Height of Transfer Unit - (Measured in Meter) - Height of Transfer Unit is a measure of the effectiveness of mass transfer between two phases (e.g., gas-liquid or liquid-liquid) in a separation or reaction process.
Molar Gas Flowrate - (Measured in Mole per Second Square Meter) - Molar Gas Flowrate is defined as the Molar flowrate per unit cross sectional area of the gaseous component.
Overall Gas Phase Mass Transfer Coefficient - (Measured in Meter per Second) - Overall Gas Phase Mass Transfer Coefficient describes the rate at which mass is transferred between the gas and liquid phases within the packed column.
Interfacial Area per Volume - (Measured in Square Meter) - Interfacial Area per Volume refers to the surface area of the interface between the two phases (usually a liquid and a gas) per unit volume of the packing material.
Total Pressure - (Measured in Pascal) - Total Pressure is the actually pressure at which the system is operating a particular process.

STEP 1: Convert Input(s) to Base Unit

Molar Gas Flowrate: 2.0318103 Mole per Second Square Meter --> 2.0318103 Mole per Second Square Meter No Conversion Required
Overall Gas Phase Mass Transfer Coefficient: 1.2358 Meter per Second --> 1.2358 Meter per Second No Conversion Required
Interfacial Area per Volume: 0.1788089 Square Meter --> 0.1788089 Square Meter No Conversion Required
Total Pressure: 15 Pascal --> 15 Pascal No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

H_OG = (G_m)/(K_G*a*P) --> (2.0318103)/(1.2358*0.1788089*15)

Evaluating ... ...

H_OG = 0.612991674629643

STEP 3: Convert Result to Output's Unit

0.612991674629643 Meter --> No Conversion Required

FINAL ANSWER

0.612991674629643 ≈ 0.612992 Meter <-- Height of Transfer Unit

(Calculation completed in 00.004 seconds)

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Home » Engineering » Chemical Engineering » Process Equipment Design » Column Design » Packed Column Designing » Height of Overall Gas Phase Transfer Unit in Packed Column

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Created by Rishi Vadodaria

Malviya National Institute Of Technology (MNIT JAIPUR ), JAIPUR

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< 16 Packed Column Designing Calculators

Effective Interfacial Area of Packing using Onda's Method

Go Effective Interfacial Area = Interfacial Area per Volume*(1-exp((-1.45*((Critical Surface Tension/Liquid Surface Tension)^0.75)*(Liquid Mass Flux/(Interfacial Area per Volume*Fluid Viscosity in Packed Column))^0.1)*(((Liquid Mass Flux)^2*Interfacial Area per Volume)/((Liquid Density)^2*[g]))^-0.05)*(Liquid Mass Flux^2/(Liquid Density*Interfacial Area per Volume*Liquid Surface Tension))^0.2)

Liquid Mass Film Coefficient in Packed Columns

Go Liquid Phase Mass Transfer Coefficient = 0.0051*((Liquid Mass Flux*Packing Volume/(Effective Interfacial Area*Fluid Viscosity in Packed Column))^(2/3))*((Fluid Viscosity in Packed Column/(Liquid Density*Column Diameter of Packed Column))^(-1/2))*((Interfacial Area per Volume*Packing Size/Packing Volume)^0.4)*((Fluid Viscosity in Packed Column*[g])/Liquid Density)^(1/3)

Log Mean Driving Force Based on Mole Fraction

Go Log Mean Driving Force = (Solute Gas Mole Fraction-Solute Gas Mole Fraction at Top)/(ln((Solute Gas Mole Fraction-Gas Concentration at Equilibrium)/(Solute Gas Mole Fraction at Top-Gas Concentration at Equilibrium)))

Pressure Drop Correlation given Vapor Mass Flux and Packing Factor

Go Pressure Drop Correlation Factor = (13.1*((Gas Mass Flux)^2)*Packing Factor*((Fluid Viscosity in Packed Column/Liquid Density)^0.1))/((Vapor Density in Packed Column)*(Liquid Density-Vapor Density in Packed Column))

Interfacial Area given Height of Transfer Unit and Mass Transfer Coefficient

Go Interfacial Area per Volume = (Molar Gas Flowrate)/(Height of Transfer Unit*Overall Gas Phase Mass Transfer Coefficient*Total Pressure)

Overall Gas Mass Transfer Coefficient given Height of Transfer Unit

Go Overall Gas Phase Mass Transfer Coefficient = (Molar Gas Flowrate)/(Height of Transfer Unit*Interfacial Area per Volume*Total Pressure)

Height of Overall Gas Phase Transfer Unit in Packed Column

Go Height of Transfer Unit = (Molar Gas Flowrate)/(Overall Gas Phase Mass Transfer Coefficient*Interfacial Area per Volume*Total Pressure)

Gas Molar Flux given Height of Transfer Unit and Interfacial Area

Go Molar Gas Flowrate = Height of Transfer Unit*(Overall Gas Phase Mass Transfer Coefficient*Interfacial Area per Volume*Total Pressure)

HETP of Packed Columns using 25 and 50mm Raschig Rings

Go Height Equivalent to Theoretical Plate = 18*Diameter of Rings+12*(Average Equilibrium Slope)*((Gas Flow/Liquid Mass Flowrate)-1)

Number of Transfer Units for Dilute System in Packed Column

Go Number Of Transfer Units-Nog = (Solute Gas Mole Fraction-Solute Gas Mole Fraction at Top)/(Log Mean Driving Force)

Gas Film Mass Transfer Coefficient given Column Performance and Interfacial Area

Go Gas Film Transfer Coefficient = (Column Performance*Molar Gas Flowrate)/(Interfacial Area per Volume)

Performance of Column Given Gas-Film Transfer Coefficient and Vapor Flowrate

Go Column Performance = (Gas Film Transfer Coefficient*Interfacial Area per Volume)/Molar Gas Flowrate

Interfacial Area of Packing Given Performance of Column and Gas Flowrate

Go Interfacial Area per Volume = (Column Performance*Molar Gas Flowrate)/Gas Film Transfer Coefficient

Gas Flowrate given Column Performance and Interfacial Area

Go Molar Gas Flowrate = (Gas Film Transfer Coefficient*Interfacial Area per Volume)/Column Performance

Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop

Go Average Pressure Drop = ((0.5*(Top Bed Pressure Drop)^0.5)+(0.5*(Bottom Bed Pressure Drop)^0.5))^2

Performance of Column for Known Value of Height of Transfer Unit

Go Column Performance = 1/Height of Transfer Unit

Height of Overall Gas Phase Transfer Unit in Packed Column Formula

Height of Transfer Unit = (Molar Gas Flowrate)/(Overall Gas Phase Mass Transfer Coefficient*Interfacial Area per Volume*Total Pressure)
H_OG = (G_m)/(K_G*a*P)

What is the Significance of Height of Transfer Units in Packed Column?

The Height of a Transfer Unit (HTU) is a crucial concept in the field of chemical engineering with significant practical and theoretical importance.

HTU plays a central role in the design and optimization of various mass transfer operations, including distillation, absorption, and extraction columns. It provides a quantitative measure of the efficiency of mass transfer within these processes

HTU is essential in determining the size and dimensions of mass transfer equipment, such as the packing or tray height in distillation columns.

How to Calculate Height of Overall Gas Phase Transfer Unit in Packed Column?

Height of Overall Gas Phase Transfer Unit in Packed Column calculator uses Height of Transfer Unit = (Molar Gas Flowrate)/(Overall Gas Phase Mass Transfer Coefficient*Interfacial Area per Volume*Total Pressure) to calculate the Height of Transfer Unit, The Height Of Overall Gas Phase Transfer Unit in Packed Column formula is defined as the height (or length) of a theoretical stage in a separation or reaction process, such that the concentration or composition change across this stage is equal to one transfer unit. Height of Transfer Unit is denoted by H_OG symbol.

How to calculate Height of Overall Gas Phase Transfer Unit in Packed Column using this online calculator? To use this online calculator for Height of Overall Gas Phase Transfer Unit in Packed Column, enter Molar Gas Flowrate (G_m), Overall Gas Phase Mass Transfer Coefficient (K_G), Interfacial Area per Volume (a) & Total Pressure (P) and hit the calculate button. Here is how the Height of Overall Gas Phase Transfer Unit in Packed Column calculation can be explained with given input values -> 0.612992 = (2.0318103)/(1.2358*0.1788089*15).

FAQ

What is Height of Overall Gas Phase Transfer Unit in Packed Column?

The Height Of Overall Gas Phase Transfer Unit in Packed Column formula is defined as the height (or length) of a theoretical stage in a separation or reaction process, such that the concentration or composition change across this stage is equal to one transfer unit and is represented as H_OG = (G_m)/(K_G*a*P) or Height of Transfer Unit = (Molar Gas Flowrate)/(Overall Gas Phase Mass Transfer Coefficient*Interfacial Area per Volume*Total Pressure). Molar Gas Flowrate is defined as the Molar flowrate per unit cross sectional area of the gaseous component, Overall Gas Phase Mass Transfer Coefficient describes the rate at which mass is transferred between the gas and liquid phases within the packed column, Interfacial Area per Volume refers to the surface area of the interface between the two phases (usually a liquid and a gas) per unit volume of the packing material & Total Pressure is the actually pressure at which the system is operating a particular process.

How to calculate Height of Overall Gas Phase Transfer Unit in Packed Column?

The Height Of Overall Gas Phase Transfer Unit in Packed Column formula is defined as the height (or length) of a theoretical stage in a separation or reaction process, such that the concentration or composition change across this stage is equal to one transfer unit is calculated using Height of Transfer Unit = (Molar Gas Flowrate)/(Overall Gas Phase Mass Transfer Coefficient*Interfacial Area per Volume*Total Pressure). To calculate Height of Overall Gas Phase Transfer Unit in Packed Column, you need Molar Gas Flowrate (G_m), Overall Gas Phase Mass Transfer Coefficient (K_G), Interfacial Area per Volume (a) & Total Pressure (P). With our tool, you need to enter the respective value for Molar Gas Flowrate, Overall Gas Phase Mass Transfer Coefficient, Interfacial Area per Volume & Total Pressure and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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