Film Thickness by Film Theory Solution

STEP 0: Pre-Calculation Summary
Formula Used
Film Thickness = Diffusion Coefficient (DAB)/Convective Mass Transfer Coefficient
δ = DAB/kL
This formula uses 3 Variables
Variables Used
Film Thickness - (Measured in Meter) - The Film Thickness is the thickness between the wall or the phase boundary or the interface to the other end of the film.
Diffusion Coefficient (DAB) - (Measured in Square Meter Per Second) - The Diffusion Coefficient (DAB) is the amount of a particular substance that diffuses across a unit area in 1 second under the influence of a gradient of one unit.
Convective Mass Transfer Coefficient - (Measured in Meter per Second) - Convective Mass Transfer Coefficient is a function of geometry of the system and the velocity and properties of the fluid similar to the heat transfer coefficient.
STEP 1: Convert Input(s) to Base Unit
Diffusion Coefficient (DAB): 0.007 Square Meter Per Second --> 0.007 Square Meter Per Second No Conversion Required
Convective Mass Transfer Coefficient: 0.0095 Meter per Second --> 0.0095 Meter per Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
δ = DAB/kL --> 0.007/0.0095
Evaluating ... ...
δ = 0.736842105263158
STEP 3: Convert Result to Output's Unit
0.736842105263158 Meter --> No Conversion Required
FINAL ANSWER
0.736842105263158 0.736842 Meter <-- Film Thickness
(Calculation completed in 00.020 seconds)

Credits

Created by Vaibhav Mishra
DJ Sanghvi College of Engineering (DJSCE), Mumbai
Vaibhav Mishra has created this Calculator and 300+ more calculators!
Verified by Soupayan banerjee
National University of Judicial Science (NUJS), Kolkata
Soupayan banerjee has verified this Calculator and 800+ more calculators!

20 Mass Transfer Theories Calculators

Liquid Phase Mass Transfer Coefficient by Two Film Theory
Go Overall Liquid Phase Mass Transfer Coefficient = 1/((1/(Gas Phase Mass Transfer Coefficient*Henry's Constant))+(1/Liquid Phase Mass Transfer Coefficient))
Instantaneous Mass Transfer Coefficient by Penetration Theory
Go Instantaneous Convective Mass Transfer Coefficient = sqrt(Diffusion Coefficient (DAB)/(pi*Instantaneous Contact Time))
Gas Phase Mass Transfer Coefficient by Two Film Theory
Go Overall Gas Phase Mass Transfer Coefficient = 1/((1/Gas Phase Mass Transfer Coefficient)+(Henry's Constant/Liquid Phase Mass Transfer Coefficient))
Average Mass Transfer Coefficient by Penetration Theory
Go Average Convective Mass Transfer Coefficient = 2*sqrt(Diffusion Coefficient (DAB)/(pi*Average Contact Time))
Diffusivity by Instanataneous Contact Time in Penetration Theory
Go Diffusion Coefficient (DAB) = (Instantaneous Contact Time*(Instantaneous Convective Mass Transfer Coefficient^2)*pi)
Instantaneous Contact Time by Penetration Theory
Go Instantaneous Contact Time = (Diffusion Coefficient (DAB))/((Instantaneous Convective Mass Transfer Coefficient^2)*pi)
Fractional Resistance Offered by Liquid Phase
Go Fractional Resistance Offered by Liquid Phase = (1/Liquid Phase Mass Transfer Coefficient)/(1/Overall Liquid Phase Mass Transfer Coefficient)
Diffusivity by Average Contact Time in Penetration Theory
Go Diffusion Coefficient (DAB) = (Average Contact Time*(Average Convective Mass Transfer Coefficient^2)*pi)/4
Average Contact Time by Penetration Theory
Go Average Contact Time = (4*Diffusion Coefficient (DAB))/((Average Convective Mass Transfer Coefficient^2)*pi)
Overall Liquid Phase Mass Transfer Coefficient using Fractional Resistance by Liquid Phase
Go Overall Liquid Phase Mass Transfer Coefficient = Liquid Phase Mass Transfer Coefficient*Fractional Resistance Offered by Liquid Phase
Liquid Phase Mass Transfer Coefficient using Fractional Resistance by Liquid Phase
Go Liquid Phase Mass Transfer Coefficient = Overall Liquid Phase Mass Transfer Coefficient/Fractional Resistance Offered by Liquid Phase
Fractional Resistance Offered by Gas Phase
Go Fractional Resistance Offered by Gas Phase = (1/Gas Phase Mass Transfer Coefficient)/(1/Overall Gas Phase Mass Transfer Coefficient)
Overall Gas Phase Mass Transfer Coefficient using Fractional Resistance by Gas Phase
Go Overall Gas Phase Mass Transfer Coefficient = Gas Phase Mass Transfer Coefficient*Fractional Resistance Offered by Gas Phase
Gas Phase Mass Transfer Coefficient using Fractional Resistance by Gas Phase
Go Gas Phase Mass Transfer Coefficient = Overall Gas Phase Mass Transfer Coefficient/Fractional Resistance Offered by Gas Phase
Mass Transfer Coefficient by Surface Renewal Theory
Go Convective Mass Transfer Coefficient = sqrt(Diffusion Coefficient (DAB)*Surface Renewal Rate)
Diffusivity by Surface Renewal Theory
Go Diffusion Coefficient (DAB) = (Convective Mass Transfer Coefficient^2)/ Surface Renewal Rate
Surface Renewal Rate by Surface Renewal Theory
Go Surface Renewal Rate = (Convective Mass Transfer Coefficient^2)/Diffusion Coefficient (DAB)
Mass Transfer Coefficient by Film Theory
Go Convective Mass Transfer Coefficient = Diffusion Coefficient (DAB)/Film Thickness
Film Thickness by Film Theory
Go Film Thickness = Diffusion Coefficient (DAB)/Convective Mass Transfer Coefficient
Diffusivity by Film Theory
Go Diffusion Coefficient (DAB) = Convective Mass Transfer Coefficient*Film Thickness

Film Thickness by Film Theory Formula

Film Thickness = Diffusion Coefficient (DAB)/Convective Mass Transfer Coefficient
δ = DAB/kL

What is Film Theory in Mass Transfer ?

Film theory in Mass transfer states that the resistance in mass transfer between fluid phases in turbulent flow is present in a thin layer adjacent to the interface called film. As per Film Theory (Whitman 1932), the mass transfer coefficient is equal to the ratio of diffusivity to film thickness.

How to Calculate Film Thickness by Film Theory?

Film Thickness by Film Theory calculator uses Film Thickness = Diffusion Coefficient (DAB)/Convective Mass Transfer Coefficient to calculate the Film Thickness, The Film Thickness by Film Theory formula is used to calculate the film thickness based on the Film Theory where diffusivity and mass transfer coefficient are known. Film Thickness is denoted by δ symbol.

How to calculate Film Thickness by Film Theory using this online calculator? To use this online calculator for Film Thickness by Film Theory, enter Diffusion Coefficient (DAB) (DAB) & Convective Mass Transfer Coefficient (kL) and hit the calculate button. Here is how the Film Thickness by Film Theory calculation can be explained with given input values -> 0.736842 = 0.007/0.0095.

FAQ

What is Film Thickness by Film Theory?
The Film Thickness by Film Theory formula is used to calculate the film thickness based on the Film Theory where diffusivity and mass transfer coefficient are known and is represented as δ = DAB/kL or Film Thickness = Diffusion Coefficient (DAB)/Convective Mass Transfer Coefficient. The Diffusion Coefficient (DAB) is the amount of a particular substance that diffuses across a unit area in 1 second under the influence of a gradient of one unit & Convective Mass Transfer Coefficient is a function of geometry of the system and the velocity and properties of the fluid similar to the heat transfer coefficient.
How to calculate Film Thickness by Film Theory?
The Film Thickness by Film Theory formula is used to calculate the film thickness based on the Film Theory where diffusivity and mass transfer coefficient are known is calculated using Film Thickness = Diffusion Coefficient (DAB)/Convective Mass Transfer Coefficient. To calculate Film Thickness by Film Theory, you need Diffusion Coefficient (DAB) (DAB) & Convective Mass Transfer Coefficient (kL). With our tool, you need to enter the respective value for Diffusion Coefficient (DAB) & Convective Mass Transfer Coefficient and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!