Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion Solution

STEP 0: Pre-Calculation Summary
Formula Used
Standard Deviation based on θ at Small Extents = sqrt(2*(Dispersion Coefficient at Dispersion Number < 0.01/(Length of Spread for Dispersion Number <0.01*Velocity of Pulse for Dispersion Number <0.01)))
S.DS.E = sqrt(2*(Dp/(L'*u')))
This formula uses 1 Functions, 4 Variables
Functions Used
sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)
Variables Used
Standard Deviation based on θ at Small Extents - Standard Deviation based on θ at Small Extents is Calculated using Mean of Pulse Curve and Dispersion Number, which is measure of Spread of Tracer.
Dispersion Coefficient at Dispersion Number < 0.01 - (Measured in Square Meter Per Second) - Dispersion Coefficient at Dispersion Number < 0.01 is distinguished as Spreading of the Tracer in the reactor, that diffuses across a unit area in 1 s under the influence of a gradient of one unit.
Length of Spread for Dispersion Number <0.01 - (Measured in Meter) - The Length of Spread for Dispersion Number <0.01 of a Pulse provides Information about how far and how fast the Spread Propagates.
Velocity of Pulse for Dispersion Number <0.01 - (Measured in Meter per Second) - Velocity of Pulse for Dispersion Number <0.01 is the Velocity at which a Pulse of Material or Information travels through a Process or a System.
STEP 1: Convert Input(s) to Base Unit
Dispersion Coefficient at Dispersion Number < 0.01: 0.0085 Square Meter Per Second --> 0.0085 Square Meter Per Second No Conversion Required
Length of Spread for Dispersion Number <0.01: 0.92 Meter --> 0.92 Meter No Conversion Required
Velocity of Pulse for Dispersion Number <0.01: 40 Meter per Second --> 40 Meter per Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
S.DS.E = sqrt(2*(Dp/(L'*u'))) --> sqrt(2*(0.0085/(0.92*40)))
Evaluating ... ...
S.DS.E = 0.0214931738405274
STEP 3: Convert Result to Output's Unit
0.0214931738405274 --> No Conversion Required
FINAL ANSWER
0.0214931738405274 0.021493 <-- Standard Deviation based on θ at Small Extents
(Calculation completed in 00.004 seconds)

Credits

Creator Image
Created by Pavan Kumar
Anurag Group of Institutions (AGI), Hyderabad
Pavan Kumar has created this Calculator and 100+ more calculators!
Verifier Image
Verified by Prerana Bakli
University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA
Prerana Bakli has verified this Calculator and 1600+ more calculators!

Dispersion Model Calculators

Exit Age Distribution based on Dispersion Number
​ LaTeX ​ Go Exit Age Distribution = sqrt(Velocity of Pulse Measuring Variance^3/(4*pi*Dispersion Coefficient at Dispersion Number > 100*Length of Spread))*exp(-(Length of Spread-(Velocity of Pulse Measuring Variance*Time Required for Change in Concentration))^2/(4*(Dispersion Coefficient at Dispersion Number > 100*Length of Spread)/Velocity of Pulse Measuring Variance))
Concentration using Dispersion where Dispersion Number less than 0.01
​ LaTeX ​ Go Concentration at Dispersion Number < 0.01 = 1/(2*sqrt(pi*(Dispersion Coefficient at Dispersion Number < 0.01/(Velocity of Pulse for Dispersion Number <0.01*Length of Spread for Dispersion Number <0.01))))*exp(-(1-Mean Residence Time)^2/(4*(Dispersion Coefficient at Dispersion Number < 0.01/(Velocity of Pulse for Dispersion Number <0.01*Length of Spread for Dispersion Number <0.01))))
Standard Deviation of Tracer based on Mean Residence Time for Large Deviations of Dispersion
​ LaTeX ​ Go Standard Deviation based on θ at Large Deviations = sqrt(2*(Dispersion Coefficient at Dispersion Number > 100/(Length of Spread*Velocity of Pulse))-2*((Dispersion Coefficient at Dispersion Number > 100/(Velocity of Pulse*Length of Spread))^2)*(1-exp(-(Velocity of Pulse*Length of Spread)/Dispersion Coefficient at Dispersion Number > 100)))
Variance of Spread of Tracer for Small Extents of Dispersion
​ LaTeX ​ Go Variance of Spread for Dispersion Number <0.01 = 2*(Dispersion Coefficient at Dispersion Number < 0.01*Length of Spread for Dispersion Number <0.01/Velocity of Pulse for Dispersion Number <0.01^3)

Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion Formula

​LaTeX ​Go
Standard Deviation based on θ at Small Extents = sqrt(2*(Dispersion Coefficient at Dispersion Number < 0.01/(Length of Spread for Dispersion Number <0.01*Velocity of Pulse for Dispersion Number <0.01)))
S.DS.E = sqrt(2*(Dp/(L'*u')))

What is Standard Deviation ?

Standard Deviation is Square Root of the variance or the measure of the spread of the curve, which are directly linked to Dispersion Number.

What is Dispersion Number ?

Suppose an ideal pulse of tracer is introduced into the fluid entering a vessel. The pulse spreads as it passes through the vessel, and to characterize the spreading according to this model, we assume a diffusion-like process superimposed on plug flow. We call this dispersion or longitudinal dispersion to distinguish it from molecular diffusion. The dispersion coefficient D represents this spreading process.

How to Calculate Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion?

Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion calculator uses Standard Deviation based on θ at Small Extents = sqrt(2*(Dispersion Coefficient at Dispersion Number < 0.01/(Length of Spread for Dispersion Number <0.01*Velocity of Pulse for Dispersion Number <0.01))) to calculate the Standard Deviation based on θ at Small Extents, Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion formula is defined as Square Root of Measure of Spread of Tracer in the Reactor, based on Mean Residence Time. Standard Deviation based on θ at Small Extents is denoted by S.DS.E symbol.

How to calculate Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion using this online calculator? To use this online calculator for Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion, enter Dispersion Coefficient at Dispersion Number < 0.01 (Dp), Length of Spread for Dispersion Number <0.01 (L') & Velocity of Pulse for Dispersion Number <0.01 (u') and hit the calculate button. Here is how the Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion calculation can be explained with given input values -> 0.021493 = sqrt(2*(0.0085/(0.92*40))).

FAQ

What is Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion?
Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion formula is defined as Square Root of Measure of Spread of Tracer in the Reactor, based on Mean Residence Time and is represented as S.DS.E = sqrt(2*(Dp/(L'*u'))) or Standard Deviation based on θ at Small Extents = sqrt(2*(Dispersion Coefficient at Dispersion Number < 0.01/(Length of Spread for Dispersion Number <0.01*Velocity of Pulse for Dispersion Number <0.01))). Dispersion Coefficient at Dispersion Number < 0.01 is distinguished as Spreading of the Tracer in the reactor, that diffuses across a unit area in 1 s under the influence of a gradient of one unit, The Length of Spread for Dispersion Number <0.01 of a Pulse provides Information about how far and how fast the Spread Propagates & Velocity of Pulse for Dispersion Number <0.01 is the Velocity at which a Pulse of Material or Information travels through a Process or a System.
How to calculate Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion?
Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion formula is defined as Square Root of Measure of Spread of Tracer in the Reactor, based on Mean Residence Time is calculated using Standard Deviation based on θ at Small Extents = sqrt(2*(Dispersion Coefficient at Dispersion Number < 0.01/(Length of Spread for Dispersion Number <0.01*Velocity of Pulse for Dispersion Number <0.01))). To calculate Standard Deviation of Spread based on Mean Residence Time for Small Extents of Dispersion, you need Dispersion Coefficient at Dispersion Number < 0.01 (Dp), Length of Spread for Dispersion Number <0.01 (L') & Velocity of Pulse for Dispersion Number <0.01 (u'). With our tool, you need to enter the respective value for Dispersion Coefficient at Dispersion Number < 0.01, Length of Spread for Dispersion Number <0.01 & Velocity of Pulse for Dispersion Number <0.01 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!