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

✖Top Bed Pressure Drop refers to the pressure drop experienced by the fluid as it flows through the upper section or bed of packing material near the top of the column.ⓘ Top Bed Pressure Drop [ΔP_top]			+10% -10%
✖Bottom Bed Pressure Drop refers to the pressure drop experienced by the fluid as it flows through the lower section or bed of packing material near the bottom of the column.ⓘ Bottom Bed Pressure Drop [ΔP_Bottom]			+10% -10%

✖Average Pressure Drop refers to the average decrease in pressure experienced by a fluid as it flows through the column packing.ⓘ Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop [ΔP]

⎘ Copy

👎

Formula

✖

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

Formula

`"ΔP" = ((0.5*("ΔP"_{"top"})^0.5)+(0.5*("ΔP"_{"Bottom"})^0.5))^2`

Example

`"0.907903Pa"=((0.5*("0.89713Pa")^0.5)+(0.5*("0.91874Pa")^0.5))^2`

Calculator

LaTeX

Reset

👍

Download Process Equipment Design Formula PDF PDF Image

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

STEP 0: Pre-Calculation Summary

Formula Used

Average Pressure Drop = ((0.5*(Top Bed Pressure Drop)^0.5)+(0.5*(Bottom Bed Pressure Drop)^0.5))^2
ΔP = ((0.5*(ΔP_top)^0.5)+(0.5*(ΔP_Bottom)^0.5))^2
This formula uses 3 Variables

Variables Used

Average Pressure Drop - (Measured in Pascal) - Average Pressure Drop refers to the average decrease in pressure experienced by a fluid as it flows through the column packing.
Top Bed Pressure Drop - (Measured in Pascal) - Top Bed Pressure Drop refers to the pressure drop experienced by the fluid as it flows through the upper section or bed of packing material near the top of the column.
Bottom Bed Pressure Drop - (Measured in Pascal) - Bottom Bed Pressure Drop refers to the pressure drop experienced by the fluid as it flows through the lower section or bed of packing material near the bottom of the column.

STEP 1: Convert Input(s) to Base Unit

Top Bed Pressure Drop: 0.89713 Pascal --> 0.89713 Pascal No Conversion Required
Bottom Bed Pressure Drop: 0.91874 Pascal --> 0.91874 Pascal No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

ΔP = ((0.5*(ΔP_top)^0.5)+(0.5*(ΔP_Bottom)^0.5))^2 --> ((0.5*(0.89713)^0.5)+(0.5*(0.91874)^0.5))^2

Evaluating ... ...

ΔP = 0.907902852280476

STEP 3: Convert Result to Output's Unit

0.907902852280476 Pascal --> No Conversion Required

FINAL ANSWER

0.907902852280476 ≈ 0.907903 Pascal <-- Average Pressure Drop

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Chemical Engineering » Process Equipment Design » Column Design » Packed Column Designing » Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop

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 Prerana Bakli

University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA

Prerana Bakli has verified this Calculator and 1600+ more calculators!

< 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

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

Average Pressure Drop = ((0.5*(Top Bed Pressure Drop)^0.5)+(0.5*(Bottom Bed Pressure Drop)^0.5))^2
ΔP = ((0.5*(ΔP_top)^0.5)+(0.5*(ΔP_Bottom)^0.5))^2

What is Top Bed Pressure Drop?

In a packed column, the "top bed pressure drop" refers to the pressure drop experienced by the fluid as it flows through the upper section or bed of packing material near the top of the column. The top bed pressure drop is a specific component of the overall pressure drop in the column and is typically considered separately due to its location in the column.
The pressure drop in the top bed is influenced by several factors, including the type of packing material, packing geometry, fluid properties, and the flow rates of the gas (vapor) and liquid phases. The packing in the top bed introduces resistance to the flow, leading to a pressure drop as the fluid traverses this section of the column.

What is Bottom Bed Pressure Drop?

In a packed column, the "bottom bed pressure drop" refers to the pressure drop experienced by the fluid as it flows through the lower section or bed of packing material near the bottom of the column. Similar to the top bed pressure drop, the bottom bed pressure drop is a specific component of the overall pressure drop in the column and is considered separately due to its location in the column.
The pressure drop in the bottom bed is influenced by factors such as the type of packing material, packing geometry, fluid properties, and the flow rates of the gas (vapor) and liquid phases. The packing in the bottom bed introduces resistance to the flow, leading to a pressure drop as the fluid moves through this section of the column.

How to Calculate Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop?

Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop calculator uses Average Pressure Drop = ((0.5*(Top Bed Pressure Drop)^0.5)+(0.5*(Bottom Bed Pressure Drop)^0.5))^2 to calculate the Average Pressure Drop, The Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop formula is defined as the average decrease in pressure across the bed of packing material in a column or vessel. Average Pressure Drop is denoted by ΔP symbol.

How to calculate Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop using this online calculator? To use this online calculator for Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop, enter Top Bed Pressure Drop (ΔP_top) & Bottom Bed Pressure Drop (ΔP_Bottom) and hit the calculate button. Here is how the Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop calculation can be explained with given input values -> 0.907903 = ((0.5*(0.89713)^0.5)+(0.5*(0.91874)^0.5))^2.

FAQ

What is Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop?

The Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop formula is defined as the average decrease in pressure across the bed of packing material in a column or vessel and is represented as ΔP = ((0.5*(ΔP_top)^0.5)+(0.5*(ΔP_Bottom)^0.5))^2 or Average Pressure Drop = ((0.5*(Top Bed Pressure Drop)^0.5)+(0.5*(Bottom Bed Pressure Drop)^0.5))^2. Top Bed Pressure Drop refers to the pressure drop experienced by the fluid as it flows through the upper section or bed of packing material near the top of the column & Bottom Bed Pressure Drop refers to the pressure drop experienced by the fluid as it flows through the lower section or bed of packing material near the bottom of the column.

How to calculate Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop?

The Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop formula is defined as the average decrease in pressure across the bed of packing material in a column or vessel is calculated using Average Pressure Drop = ((0.5*(Top Bed Pressure Drop)^0.5)+(0.5*(Bottom Bed Pressure Drop)^0.5))^2. To calculate Average Specific Pressure Drop Given Top Bed Pressure Drop and Bottom Bed Pressure Drop, you need Top Bed Pressure Drop (ΔP_top) & Bottom Bed Pressure Drop (ΔP_Bottom). With our tool, you need to enter the respective value for Top Bed Pressure Drop & Bottom Bed Pressure Drop 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