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]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Process Equipment Design Formula PDF PDF Image

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)

You are here -

Home » Engineering » Chemical Engineering » Process Equipment Design » Column Design » Packed Column Designing » HETP of Packed Columns using 25 and 50mm Raschig Rings

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!

< Packed Column Designing Calculators

Effective Interfacial Area of Packing using Onda's Method

LaTeX 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

LaTeX 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

LaTeX 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)))

Height of Overall Gas Phase Transfer Unit in Packed Column

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

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

LaTeX Go

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.

Home

FREE PDFs

🔍 Search