## Membrane Pressure Drop Solution

STEP 0: Pre-Calculation Summary
Formula Used
Applied Pressure Driving Force = (Tortuosity*32*Liquid Viscosity*Flux through Membrane*Membrane Thickness)/(Membrane Porosity*(Pore Diameter^2))
ΔPm = (Τ*32*μ*JwM*lmt)/(ε*(d^2))
This formula uses 7 Variables
Variables Used
Applied Pressure Driving Force - (Measured in Pascal) - Applied Pressure Driving Force is defined as the force or pressure that is intentionally exerted or applied to induce or facilitate process.
Tortuosity - Tortuosity is an intrinsic property of a porous material usually defined as the ratio of actual flow path length to the straight distance between the ends of the flow path.
Liquid Viscosity - (Measured in Pascal Second) - Liquid viscosity is defined as the measure of a fluid's resistance to flow or its internal friction when subjected to an external force.
Flux through Membrane - (Measured in Cubic Meter per Square Meter per Second) - Flux through membrane is defined as the rate of movement or transfer of a substance per unit area across a porous barrier known as a membrane.
Membrane Thickness - (Measured in Meter) - Membrane thickness is defined as the difference between the internal and outernal boundary of the membrane.
Membrane Porosity - Membrane porosity is defined as the void volume fraction of a membrane. It is the volume of the pores divided by the total volume of the membrane.
Pore Diameter - (Measured in Meter) - Pore diameter is defined as the distance between two opposite walls of a pore.
STEP 1: Convert Input(s) to Base Unit
Tortuosity: 280 --> No Conversion Required
Liquid Viscosity: 0.0009 Kilogram per Meter per Second --> 0.0009 Pascal Second (Check conversion ​here)
Flux through Membrane: 0.0069444 Cubic Meter per Square Meter per Second --> 0.0069444 Cubic Meter per Square Meter per Second No Conversion Required
Membrane Thickness: 75 Micrometer --> 7.5E-05 Meter (Check conversion ​here)
Membrane Porosity: 0.35 --> No Conversion Required
Pore Diameter: 6.3245 Micrometer --> 6.3245E-06 Meter (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
ΔPm = (Τ*32*μ*JwM*lmt)/(ε*(d^2)) --> (280*32*0.0009*0.0069444*7.5E-05)/(0.35*(6.3245E-06^2))
Evaluating ... ...
ΔPm = 300003.328183222
STEP 3: Convert Result to Output's Unit
300003.328183222 Pascal --> No Conversion Required
300003.328183222 300003.3 Pascal <-- Applied Pressure Driving Force
(Calculation completed in 00.004 seconds)
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## <Membrane Characteristics Calculators

Membrane Pore Diameter
​ Go Pore Diameter = ((32*Liquid Viscosity*Flux through Membrane*Tortuosity*Membrane Thickness)/(Membrane Porosity*Applied Pressure Driving Force))^0.5
Membrane Thickness
​ Go Membrane Thickness = (Pore Diameter^2*Membrane Porosity*Applied Pressure Driving Force)/(32*Liquid Viscosity*Flux through Membrane*Tortuosity)
Membrane Porosity
​ Go Membrane Porosity = (32*Liquid Viscosity*Flux through Membrane*Tortuosity*Membrane Thickness)/(Pore Diameter^2*Applied Pressure Driving Force)
Pressure Driving Force in Membrane
​ Go Applied Pressure Driving Force = Membrane Flow Resistance of Unit Area*Liquid Viscosity*Flux through Membrane

## Membrane Pressure Drop Formula

Applied Pressure Driving Force = (Tortuosity*32*Liquid Viscosity*Flux through Membrane*Membrane Thickness)/(Membrane Porosity*(Pore Diameter^2))
ΔPm = (Τ*32*μ*JwM*lmt)/(ε*(d^2))

## What factors affect the Membrane Pressure Drops?

There are several factors that can affect the membrane pressure drop, including:

Membrane pore size: The smaller the pore size, the greater the resistance to flow and the higher the pressure drop.
Membrane thickness: The thicker the membrane, the greater the resistance to flow and the higher the pressure drop.
Fluid viscosity: The viscosity of a fluid is a measure of its resistance to flow. The higher the fluid viscosity, the greater the resistance to flow and the higher the membrane pressure drop.
Flow rate: The flow rate is the volume of fluid that flows through the membrane per unit time. The higher the flow rate, the greater the resistance to flow and the higher the membrane pressure drop.
Membrane fouling: Fouling is the accumulation of material on the membrane surface, which can block the pores and increase the resistance to flow.
Membrane scaling: Scaling is the deposition of minerals on the membrane surface, which can block the pores and increase the resistance to flow.

## How to Calculate Membrane Pressure Drop?

Membrane Pressure Drop calculator uses Applied Pressure Driving Force = (Tortuosity*32*Liquid Viscosity*Flux through Membrane*Membrane Thickness)/(Membrane Porosity*(Pore Diameter^2)) to calculate the Applied Pressure Driving Force, Membrane pressure drop is defined as the difference in pressure between the feed and permeate sides of a membrane in a membrane separation process. Applied Pressure Driving Force is denoted by ΔPm symbol.

How to calculate Membrane Pressure Drop using this online calculator? To use this online calculator for Membrane Pressure Drop, enter Tortuosity (Τ), Liquid Viscosity (μ), Flux through Membrane (JwM), Membrane Thickness (lmt), Membrane Porosity (ε) & Pore Diameter (d) and hit the calculate button. Here is how the Membrane Pressure Drop calculation can be explained with given input values -> 119999.2 = (280*32*0.0009*0.0069444*7.5E-05)/(0.35*(6.3245E-06^2)).

### FAQ

What is Membrane Pressure Drop?
Membrane pressure drop is defined as the difference in pressure between the feed and permeate sides of a membrane in a membrane separation process and is represented as ΔPm = (Τ*32*μ*JwM*lmt)/(ε*(d^2)) or Applied Pressure Driving Force = (Tortuosity*32*Liquid Viscosity*Flux through Membrane*Membrane Thickness)/(Membrane Porosity*(Pore Diameter^2)). Tortuosity is an intrinsic property of a porous material usually defined as the ratio of actual flow path length to the straight distance between the ends of the flow path, Liquid viscosity is defined as the measure of a fluid's resistance to flow or its internal friction when subjected to an external force, Flux through membrane is defined as the rate of movement or transfer of a substance per unit area across a porous barrier known as a membrane, Membrane thickness is defined as the difference between the internal and outernal boundary of the membrane, Membrane porosity is defined as the void volume fraction of a membrane. It is the volume of the pores divided by the total volume of the membrane & Pore diameter is defined as the distance between two opposite walls of a pore.
How to calculate Membrane Pressure Drop?
Membrane pressure drop is defined as the difference in pressure between the feed and permeate sides of a membrane in a membrane separation process is calculated using Applied Pressure Driving Force = (Tortuosity*32*Liquid Viscosity*Flux through Membrane*Membrane Thickness)/(Membrane Porosity*(Pore Diameter^2)). To calculate Membrane Pressure Drop, you need Tortuosity (Τ), Liquid Viscosity (μ), Flux through Membrane (JwM), Membrane Thickness (lmt), Membrane Porosity (ε) & Pore Diameter (d). With our tool, you need to enter the respective value for Tortuosity, Liquid Viscosity, Flux through Membrane, Membrane Thickness, Membrane Porosity & Pore Diameter and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Applied Pressure Driving Force?
In this formula, Applied Pressure Driving Force uses Tortuosity, Liquid Viscosity, Flux through Membrane, Membrane Thickness, Membrane Porosity & Pore Diameter. We can use 1 other way(s) to calculate the same, which is/are as follows -
• Applied Pressure Driving Force = Membrane Flow Resistance of Unit Area*Liquid Viscosity*Flux through Membrane
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