Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period Calculator

✖The Critical Moisture Content is the ratio of amount of moisture present in the solids at the transition of constant and falling rate period to that of the weight of dry solid.ⓘ Critical Moisture Content [X_c]			+10% -10%
✖The Equilibrium Moisture Content is defined as the ratio of the weight of moisture in equilibrium with the solid to the weight of dry solid.ⓘ Equilibrium Moisture Content [X_Eq]			+10% -10%
✖The Drying Surface Area is the total area in the drying mass transfer operation i.e. exposed in contact with the drying medium.ⓘ Drying Surface Area [A]			+10% -10%
✖The Falling rate drying time is the time taken for drying operation in the falling rate period.ⓘ Falling Rate Drying Time [t_f]			+10% -10%
✖The Rate of Constant Drying Period is the rate of drying that takes place for a given set of drying conditions in the constant rate period.ⓘ Rate of Constant Drying Period [N_c]			+10% -10%
✖The Dry Weight of Solid is the weight of dry solid present in the system in the drying mass transfer operation.ⓘ Dry Weight of Solid [W_S]			+10% -10%

✖The Final Moisture Content for Falling Rate Period is defined as the ratio of the weight of moisture to the weight of dry solid present after the completion of the drying process.ⓘ Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period [X_f(Falling)]

⎘ Copy

👎

Formula

✖

Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period

Formula

`"X"_{"f(Falling)"} = (("X"_{"c"}-"X"_{"Eq"})/(exp(("A"*"t"_{"f"}*"N"_{"c"})/("W"_{"S"}*("X"_{"c"}-"X"_{"Eq"})))))+"X"_{"Eq"}`

Example

`"0.067479"=(("0.11"-"0.05")/(exp(("0.1m²"*"37s"*"2kg/s/m²")/("100kg"*("0.11"-"0.05")))))+"0.05"`

Calculator

LaTeX

Reset

👍

Download Drying Formula PDF PDF Image

Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period Solution

STEP 0: Pre-Calculation Summary

Formula Used

Final Moisture Content for Falling Rate Period = ((Critical Moisture Content-Equilibrium Moisture Content)/(exp((Drying Surface Area*Falling Rate Drying Time*Rate of Constant Drying Period)/(Dry Weight of Solid*(Critical Moisture Content-Equilibrium Moisture Content)))))+Equilibrium Moisture Content
X_f(Falling) = ((X_c-X_Eq)/(exp((A*t_f*N_c)/(W_S*(X_c-X_Eq)))))+X_Eq
This formula uses 1 Functions, 7 Variables

Functions Used

exp - n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable., exp(Number)

Variables Used

Final Moisture Content for Falling Rate Period - The Final Moisture Content for Falling Rate Period is defined as the ratio of the weight of moisture to the weight of dry solid present after the completion of the drying process.
Critical Moisture Content - The Critical Moisture Content is the ratio of amount of moisture present in the solids at the transition of constant and falling rate period to that of the weight of dry solid.
Equilibrium Moisture Content - The Equilibrium Moisture Content is defined as the ratio of the weight of moisture in equilibrium with the solid to the weight of dry solid.
Drying Surface Area - (Measured in Square Meter) - The Drying Surface Area is the total area in the drying mass transfer operation i.e. exposed in contact with the drying medium.
Falling Rate Drying Time - (Measured in Second) - The Falling rate drying time is the time taken for drying operation in the falling rate period.
Rate of Constant Drying Period - (Measured in Kilogram per Second per Square Meter) - The Rate of Constant Drying Period is the rate of drying that takes place for a given set of drying conditions in the constant rate period.
Dry Weight of Solid - (Measured in Kilogram) - The Dry Weight of Solid is the weight of dry solid present in the system in the drying mass transfer operation.

STEP 1: Convert Input(s) to Base Unit

Critical Moisture Content: 0.11 --> No Conversion Required
Equilibrium Moisture Content: 0.05 --> No Conversion Required
Drying Surface Area: 0.1 Square Meter --> 0.1 Square Meter No Conversion Required
Falling Rate Drying Time: 37 Second --> 37 Second No Conversion Required
Rate of Constant Drying Period: 2 Kilogram per Second per Square Meter --> 2 Kilogram per Second per Square Meter No Conversion Required
Dry Weight of Solid: 100 Kilogram --> 100 Kilogram No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

X_f(Falling) = ((X_c-X_Eq)/(exp((A*t_f*N_c)/(W_S*(X_c-X_Eq)))))+X_Eq --> ((0.11-0.05)/(exp((0.1*37*2)/(100*(0.11-0.05)))))+0.05

Evaluating ... ...

X_f(Falling) = 0.0674791934680083

STEP 3: Convert Result to Output's Unit

0.0674791934680083 --> No Conversion Required

FINAL ANSWER

0.0674791934680083 ≈ 0.067479 <-- Final Moisture Content for Falling Rate Period

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Chemical Engineering » Mass Transfer Operations » Drying » Falling Rate Drying Period » Drying from Critical to Final Moisture » Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period

Credits

Created by Vaibhav Mishra

DJ Sanghvi College of Engineering (DJSCE), Mumbai

Vaibhav Mishra has created this Calculator and 300+ 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!

< 9 Drying from Critical to Final Moisture Calculators

Dry Weight of Solid based on Critical to Final Moisture Content for Falling Rate Period

Go Dry Weight of Solid = (Drying Surface Area*Falling Rate Drying Time)/(((Critical Moisture Content-Equilibrium Moisture Content)/Rate of Constant Drying Period)*(ln((Critical Moisture Content-Equilibrium Moisture Content)/(Final Moisture Content for Falling Rate Period-Equilibrium Moisture Content))))

Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period

Go Final Moisture Content for Falling Rate Period = ((Critical Moisture Content-Equilibrium Moisture Content)/(exp((Drying Surface Area*Falling Rate Drying Time*Rate of Constant Drying Period)/(Dry Weight of Solid*(Critical Moisture Content-Equilibrium Moisture Content)))))+Equilibrium Moisture Content

Rate of Constant Drying Period based on Critical to Final Moisture Content for Falling Rate Period

Go Rate of Constant Drying Period = (Dry Weight of Solid/Falling Rate Drying Time)*((Critical Moisture Content-Equilibrium Moisture Content)/Drying Surface Area)*(ln((Critical Moisture Content-Equilibrium Moisture Content)/(Final Moisture Content for Falling Rate Period-Equilibrium Moisture Content)))

Drying Surface Area based on Critical to Final Moisture Content for Falling Rate Period

Go Drying Surface Area = (Dry Weight of Solid/Falling Rate Drying Time)*((Critical Moisture Content-Equilibrium Moisture Content)/Rate of Constant Drying Period)*(ln((Critical Moisture Content-Equilibrium Moisture Content)/(Final Moisture Content for Falling Rate Period-Equilibrium Moisture Content)))

Falling Rate Drying Time from Critical to Final Moisture

Go Falling Rate Drying Time = (Dry Weight of Solid/Drying Surface Area)*((Critical Moisture Content-Equilibrium Moisture Content)/Rate of Constant Drying Period)*(ln((Critical Moisture Content-Equilibrium Moisture Content)/(Final Moisture Content for Falling Rate Period-Equilibrium Moisture Content)))

Rate of Constant Drying Period based on Critical to Final Weight of Moisture for Falling Rate Period

Go Rate of Constant Drying Period = ((Critical Weight of Moisture-Equilibrium Weight of Moisture)/(Falling Rate Drying Time*Drying Surface Area))*(ln((Critical Weight of Moisture-Equilibrium Weight of Moisture)/(Final Weight of Moisture for Falling Rate Period-Equilibrium Weight of Moisture)))

Drying Surface Area based on Critical to Final Weight of Moisture for Falling Rate Period

Go Drying Surface Area = ((Critical Weight of Moisture-Equilibrium Weight of Moisture)/(Falling Rate Drying Time*Rate of Constant Drying Period))*(ln((Critical Weight of Moisture-Equilibrium Weight of Moisture)/(Final Weight of Moisture for Falling Rate Period-Equilibrium Weight of Moisture)))

Falling Rate Drying Time from Critical to Final Weight of Moisture

Go Falling Rate Drying Time = ((Critical Weight of Moisture-Equilibrium Weight of Moisture)/(Drying Surface Area*Rate of Constant Drying Period))*(ln((Critical Weight of Moisture-Equilibrium Weight of Moisture)/(Final Weight of Moisture for Falling Rate Period-Equilibrium Weight of Moisture)))

Final Weight of Moisture based on Critical to Final Weight of Moisture for Falling Rate Period

Go Final Weight of Moisture for Falling Rate Period = ((Critical Weight of Moisture-Equilibrium Weight of Moisture)/(exp((Drying Surface Area*Falling Rate Drying Time*Rate of Constant Drying Period)/(Critical Weight of Moisture-Equilibrium Weight of Moisture))))+Equilibrium Weight of Moisture

< 25 Important Formulas in Drying Mass Transfer Operation Calculators

Dry Weight of Solid based on Critical to Final Moisture Content for Falling Rate Period

Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period

Rate of Constant Drying Period based on Critical to Final Moisture Content for Falling Rate Period

Drying Surface Area based on Critical to Final Moisture Content for Falling Rate Period

Falling Rate Drying Time from Critical to Final Moisture

Rate of Constant Drying Period based on Critical to Final Weight of Moisture for Falling Rate Period

Drying Surface Area based on Critical to Final Weight of Moisture for Falling Rate Period

Falling Rate Drying Time from Critical to Final Weight of Moisture

Drying Surface Area based on Initial to Final Moisture Content for Constant Rate Period

Go Drying Surface Area = Dry Weight of Solid*(Initial Moisture Content for Constant Rate Period-Final Moisture Content for Constant Rate Period)/(Constant Rate Drying Time*Rate of Constant Drying Period)

Dry Weight of Solid from Initial to Final Moisture Content for Constant Rate Period

Go Dry Weight of Solid = (Constant Rate Drying Time*Drying Surface Area*Rate of Constant Drying Period)/(Initial Moisture Content for Constant Rate Period-Final Moisture Content for Constant Rate Period)

Final Moisture Content based on Initial Moisture Content for Constant Rate Period

Go Final Moisture Content for Constant Rate Period = Initial Moisture Content for Constant Rate Period-((Drying Surface Area*Constant Rate Drying Time*Rate of Constant Drying Period)/Dry Weight of Solid)

Initial Moisture Content based on Final Moisture Content for Constant Rate Period

Go Initial Moisture Content for Constant Rate Period = ((Drying Surface Area*Constant Rate Drying Time*Rate of Constant Drying Period)/Dry Weight of Solid)+Final Moisture Content for Constant Rate Period

Rate of Constant Drying Period based on Final Moisture Content

Go Rate of Constant Drying Period = Dry Weight of Solid*(Initial Moisture Content for Constant Rate Period-Final Moisture Content for Constant Rate Period)/(Drying Surface Area*Constant Rate Drying Time)

Constant Drying Time from Initial to Final Moisture Content

Go Constant Rate Drying Time = Dry Weight of Solid*(Initial Moisture Content for Constant Rate Period-Final Moisture Content for Constant Rate Period)/(Drying Surface Area*Rate of Constant Drying Period)

Constant Drying Time from Initial to Critical Moisture Content

Go Constant Rate Drying Time = Dry Weight of Solid*((Initial Moisture Content for Constant Rate Period-Critical Moisture Content))/((Drying Surface Area*Rate of Constant Drying Period))

Drying Surface Area based on Initial to Critical Moisture Content for Constant Rate Period

Go Drying Surface Area = Dry Weight of Solid*(Initial Moisture Content for Constant Rate Period-Critical Moisture Content)/(Constant Rate Drying Time*Rate of Constant Drying Period)

Dry Weight of Solid from Initial to Critical Moisture Content for Constant Rate Period

Go Dry Weight of Solid = (Constant Rate Drying Time*Drying Surface Area*Rate of Constant Drying Period)/(Initial Moisture Content for Constant Rate Period-Critical Moisture Content)

Critical Moisture Content based on Initial Moisture Content for Constant Rate Period

Go Critical Moisture Content = Initial Moisture Content for Constant Rate Period-((Drying Surface Area*Constant Rate Drying Time*Rate of Constant Drying Period)/Dry Weight of Solid)

Initial Moisture Content based on Critical Moisture Content for Constant Rate Period

Go Initial Moisture Content for Constant Rate Period = ((Drying Surface Area*Constant Rate Drying Time*Rate of Constant Drying Period)/Dry Weight of Solid)+Critical Moisture Content

Rate of Constant Drying Period based on Critical Moisture Content

Go Rate of Constant Drying Period = Dry Weight of Solid*(Initial Moisture Content for Constant Rate Period-Critical Moisture Content)/(Drying Surface Area*Constant Rate Drying Time)

Drying Surface Area based on Initial to Final Weight of Moisture for Constant Rate Period

Go Drying Surface Area = (Initial Weight of Moisture for Constant Rate-Final Weight of Moisture for Constant Rate Period)/(Constant Rate Drying Time*Rate of Constant Drying Period)

Constant Drying Time from Initial to Final Weight of Moisture

Go Constant Rate Drying Time = (Initial Weight of Moisture for Constant Rate-Final Weight of Moisture for Constant Rate Period)/(Drying Surface Area*Rate of Constant Drying Period)

Drying Surface Area based on Initial to Critical Weight of Moisture for Constant Rate Period

Go Drying Surface Area = (Initial Weight of Moisture for Constant Rate-Critical Weight of Moisture)/(Constant Rate Drying Time*Rate of Constant Drying Period)

Constant Drying Time from Initial to Critical Weight of Moisture

Go Constant Rate Drying Time = (Initial Weight of Moisture for Constant Rate-Critical Weight of Moisture)/(Drying Surface Area*Rate of Constant Drying Period)

Total Drying Time based on Constant Drying Time and Falling Drying Time

Go Total Drying Time = Constant Rate Drying Time+Falling Rate Drying Time

Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period Formula

What is Falling Rate Period Drying?

The falling rate drying period is a stage in the drying process where the rate of moisture removal from the material decreases over time as the internal moisture content of the material is reduced. During this period, the drying rate is typically controlled by the rate of moisture diffusion within the material, which is slower than the rate of heat and mass transfer at the surface of the material. In this stage, the moisture content of the material decreases more slowly than during the constant rate drying period, as the remaining moisture is located deeper within the material and must diffuse to the surface before it can be removed. The length of the falling rate period depends on the properties of the material being dried, such as its porosity, particle size, and moisture distribution.

How to Calculate Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period?

Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period calculator uses Final Moisture Content for Falling Rate Period = ((Critical Moisture Content-Equilibrium Moisture Content)/(exp((Drying Surface Area*Falling Rate Drying Time*Rate of Constant Drying Period)/(Dry Weight of Solid*(Critical Moisture Content-Equilibrium Moisture Content)))))+Equilibrium Moisture Content to calculate the Final Moisture Content for Falling Rate Period, The Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period formula is defined as the final moisture content that can be attained from the specified critical moisture content based on the drying conditions in falling rate period. Final Moisture Content for Falling Rate Period is denoted by X_f(Falling) symbol.

How to calculate Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period using this online calculator? To use this online calculator for Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period, enter Critical Moisture Content (X_c), Equilibrium Moisture Content (X_Eq), Drying Surface Area (A), Falling Rate Drying Time (t_f), Rate of Constant Drying Period (N_c) & Dry Weight of Solid (W_S) and hit the calculate button. Here is how the Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period calculation can be explained with given input values -> 0.067479 = ((0.11-0.05)/(exp((0.1*37*2)/(100*(0.11-0.05)))))+0.05.

FAQ

What is Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period?

The Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period formula is defined as the final moisture content that can be attained from the specified critical moisture content based on the drying conditions in falling rate period and is represented as X_f(Falling) = ((X_c-X_Eq)/(exp((A*t_f*N_c)/(W_S*(X_c-X_Eq)))))+X_Eq or Final Moisture Content for Falling Rate Period = ((Critical Moisture Content-Equilibrium Moisture Content)/(exp((Drying Surface Area*Falling Rate Drying Time*Rate of Constant Drying Period)/(Dry Weight of Solid*(Critical Moisture Content-Equilibrium Moisture Content)))))+Equilibrium Moisture Content. The Critical Moisture Content is the ratio of amount of moisture present in the solids at the transition of constant and falling rate period to that of the weight of dry solid, The Equilibrium Moisture Content is defined as the ratio of the weight of moisture in equilibrium with the solid to the weight of dry solid, The Drying Surface Area is the total area in the drying mass transfer operation i.e. exposed in contact with the drying medium, The Falling rate drying time is the time taken for drying operation in the falling rate period, The Rate of Constant Drying Period is the rate of drying that takes place for a given set of drying conditions in the constant rate period & The Dry Weight of Solid is the weight of dry solid present in the system in the drying mass transfer operation.

How to calculate Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period?

The Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period formula is defined as the final moisture content that can be attained from the specified critical moisture content based on the drying conditions in falling rate period is calculated using Final Moisture Content for Falling Rate Period = ((Critical Moisture Content-Equilibrium Moisture Content)/(exp((Drying Surface Area*Falling Rate Drying Time*Rate of Constant Drying Period)/(Dry Weight of Solid*(Critical Moisture Content-Equilibrium Moisture Content)))))+Equilibrium Moisture Content. To calculate Final Moisture Content based on Critical to Final Moisture Content for Falling Rate Period, you need Critical Moisture Content (X_c), Equilibrium Moisture Content (X_Eq), Drying Surface Area (A), Falling Rate Drying Time (t_f), Rate of Constant Drying Period (N_c) & Dry Weight of Solid (W_S). With our tool, you need to enter the respective value for Critical Moisture Content, Equilibrium Moisture Content, Drying Surface Area, Falling Rate Drying Time, Rate of Constant Drying Period & Dry Weight of Solid 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 Final Moisture Content for Falling Rate Period?

In this formula, Final Moisture Content for Falling Rate Period uses Critical Moisture Content, Equilibrium Moisture Content, Drying Surface Area, Falling Rate Drying Time, Rate of Constant Drying Period & Dry Weight of Solid. We can use 1 other way(s) to calculate the same, which is/are as follows -

Final Moisture Content for Falling Rate Period = ((Initial Moisture Content for Falling Rate Period-Equilibrium Moisture Content)/(exp((Drying Surface Area*Falling Rate Drying Time*Rate of Constant Drying Period)/(Dry Weight of Solid*(Initial Moisture Content for Falling Rate Period-Equilibrium Moisture Content)))))+Equilibrium Moisture Content

Home

FREE PDFs

🔍 Search