HETP of Packed Columns using 25 and 50mm Raschig Rings Calculator

✖Diameter of Rings refers to the diameter of Raschig Rings used as a packing in packed columns.ⓘ Diameter of Rings [d_r]			+10% -10%
✖Average Equilibrium Slope is the mean value of the slope for the equilibrium curve plotted for the vapor and liquid phase undergoing a unit operation.ⓘ Average Equilibrium Slope [m]			+10% -10%
✖Gas Flow is the mass flowrate of the vapor/gas phase that travels across the Column undergoing unit process and operations.ⓘ Gas Flow [G']			+10% -10%
✖Liquid Mass Flowrate is the mass flow rate of the liquid component in the column.ⓘ Liquid Mass Flowrate [L_w]			+10% -10%

✖The Height Equivalent to Theoretical Plate is the height of a hypothetical column or tray that would provide the same degree of separation as one theoretical plate.ⓘ HETP of Packed Columns using 25 and 50mm Raschig Rings [HETP]

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Formula

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HETP of Packed Columns using 25 and 50mm Raschig Rings

Formula

`"HETP" = 18*"d"_{"r"}+12*("m")*(("G'"/"L"_{"w"})-1)`

Example

`"27.82675m"=18*"0.02689m"+12*("1.274")*(("3.147kg/s"/"1.12856kg/s")-1)`

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HETP of Packed Columns using 25 and 50mm Raschig Rings Solution

STEP 0: Pre-Calculation Summary

Formula Used

Height Equivalent to Theoretical Plate = 18*Diameter of Rings+12*(Average Equilibrium Slope)*((Gas Flow/Liquid Mass Flowrate)-1)
HETP = 18*d_r+12*(m)*((G'/L_w)-1)
This formula uses 5 Variables

Variables Used

Height Equivalent to Theoretical Plate - (Measured in Meter) - The Height Equivalent to Theoretical Plate is the height of a hypothetical column or tray that would provide the same degree of separation as one theoretical plate.
Diameter of Rings - (Measured in Meter) - Diameter of Rings refers to the diameter of Raschig Rings used as a packing in packed columns.
Average Equilibrium Slope - Average Equilibrium Slope is the mean value of the slope for the equilibrium curve plotted for the vapor and liquid phase undergoing a unit operation.
Gas Flow - (Measured in Kilogram per Second) - Gas Flow is the mass flowrate of the vapor/gas phase that travels across the Column undergoing unit process and operations.
Liquid Mass Flowrate - (Measured in Kilogram per Second) - Liquid Mass Flowrate is the mass flow rate of the liquid component in the column.

STEP 1: Convert Input(s) to Base Unit

Diameter of Rings: 0.02689 Meter --> 0.02689 Meter No Conversion Required
Average Equilibrium Slope: 1.274 --> No Conversion Required
Gas Flow: 3.147 Kilogram per Second --> 3.147 Kilogram per Second No Conversion Required
Liquid Mass Flowrate: 1.12856 Kilogram per Second --> 1.12856 Kilogram per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

HETP = 18*d_r+12*(m)*((G'/L_w)-1) --> 18*0.02689+12*(1.274)*((3.147/1.12856)-1)

Evaluating ... ...

HETP = 27.8267494251081

STEP 3: Convert Result to Output's Unit

27.8267494251081 Meter --> No Conversion Required

FINAL ANSWER

27.8267494251081 ≈ 27.82675 Meter <-- Height Equivalent to Theoretical Plate

(Calculation completed in 00.004 seconds)

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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

HETP of Packed Columns using 25 and 50mm Raschig Rings Formula

Height Equivalent to Theoretical Plate = 18*Diameter of Rings+12*(Average Equilibrium Slope)*((Gas Flow/Liquid Mass Flowrate)-1)
HETP = 18*d_r+12*(m)*((G'/L_w)-1)

What is the Significance of HETP in Packed Columns?

HETP is a measure of the efficiency of the separation achieved by a packed column. A lower HETP value indicates better separation efficiency, meaning that the column can resolve different components of a mixture more effectively.
HETP provides a quantitative metric to assess the performance of a packed column. It allows chromatographers to compare different columns and select the one that offers optimal separation efficiency for their specific application.
HETP plays a role in economic considerations related to column usage. A column with lower HETP may allow for faster separations, potentially reducing analysis time and resource consumption, which can be advantageous in high-throughput settings.

How to Calculate HETP of Packed Columns using 25 and 50mm Raschig Rings?

HETP of Packed Columns using 25 and 50mm Raschig Rings calculator uses Height Equivalent to Theoretical Plate = 18*Diameter of Rings+12*(Average Equilibrium Slope)*((Gas Flow/Liquid Mass Flowrate)-1) to calculate the Height Equivalent to Theoretical Plate, The HETP of Packed Columns using 25 and 50mm Raschig Rings formula is defined as the height of the column required to achieve the same degree of separation efficiency as if the entire column were composed of individual, idealized plates. Height Equivalent to Theoretical Plate is denoted by HETP symbol.

How to calculate HETP of Packed Columns using 25 and 50mm Raschig Rings using this online calculator? To use this online calculator for HETP of Packed Columns using 25 and 50mm Raschig Rings, enter Diameter of Rings (d_r), Average Equilibrium Slope (m), Gas Flow (G') & Liquid Mass Flowrate (L_w) and hit the calculate button. Here is how the HETP of Packed Columns using 25 and 50mm Raschig Rings calculation can be explained with given input values -> 27.82675 = 18*0.02689+12*(1.274)*((3.147/1.12856)-1).

FAQ

What is HETP of Packed Columns using 25 and 50mm Raschig Rings?

The HETP of Packed Columns using 25 and 50mm Raschig Rings formula is defined as the height of the column required to achieve the same degree of separation efficiency as if the entire column were composed of individual, idealized plates and is represented as HETP = 18*d_r+12*(m)*((G'/L_w)-1) or Height Equivalent to Theoretical Plate = 18*Diameter of Rings+12*(Average Equilibrium Slope)*((Gas Flow/Liquid Mass Flowrate)-1). Diameter of Rings refers to the diameter of Raschig Rings used as a packing in packed columns, Average Equilibrium Slope is the mean value of the slope for the equilibrium curve plotted for the vapor and liquid phase undergoing a unit operation, Gas Flow is the mass flowrate of the vapor/gas phase that travels across the Column undergoing unit process and operations & Liquid Mass Flowrate is the mass flow rate of the liquid component in the column.

How to calculate HETP of Packed Columns using 25 and 50mm Raschig Rings?

The HETP of Packed Columns using 25 and 50mm Raschig Rings formula is defined as the height of the column required to achieve the same degree of separation efficiency as if the entire column were composed of individual, idealized plates is calculated using Height Equivalent to Theoretical Plate = 18*Diameter of Rings+12*(Average Equilibrium Slope)*((Gas Flow/Liquid Mass Flowrate)-1). To calculate HETP of Packed Columns using 25 and 50mm Raschig Rings, you need Diameter of Rings (d_r), Average Equilibrium Slope (m), Gas Flow (G') & Liquid Mass Flowrate (L_w). With our tool, you need to enter the respective value for Diameter of Rings, Average Equilibrium Slope, Gas Flow & Liquid Mass Flowrate 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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