Fx Copy
LaTeX Copy
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. Check FAQs
Nc=WSXi(Constant)-Xf(Constant)Atc
Nc - Rate of Constant Drying Period?WS - Dry Weight of Solid?Xi(Constant) - Initial Moisture Content for Constant Rate Period?Xf(Constant) - Final Moisture Content for Constant Rate Period?A - Drying Surface Area?tc - Constant Rate Drying Time?

Rate of Constant Drying Period based on Final Moisture Content Example

With values
With units
Only example

Here is how the Rate of Constant Drying Period based on Final Moisture Content equation looks like with Values.

Here is how the Rate of Constant Drying Period based on Final Moisture Content equation looks like with Units.

Here is how the Rate of Constant Drying Period based on Final Moisture Content equation looks like.

1.7895Edit=100Edit0.49Edit-0.15Edit0.1Edit190Edit
You are here -
HomeIcon Home » Category Engineering » Category Chemical Engineering » Category Mass Transfer Operations » fx Rate of Constant Drying Period based on Final Moisture Content

Rate of Constant Drying Period based on Final Moisture Content Solution

Follow our step by step solution on how to calculate Rate of Constant Drying Period based on Final Moisture Content?

FIRST Step Consider the formula
Nc=WSXi(Constant)-Xf(Constant)Atc
Next Step Substitute values of Variables
Nc=100kg0.49-0.150.1190s
Next Step Prepare to Evaluate
Nc=1000.49-0.150.1190
Next Step Evaluate
Nc=1.78947368421053kg/s/m²
LAST Step Rounding Answer
Nc=1.7895kg/s/m²

Rate of Constant Drying Period based on Final Moisture Content Formula Elements

Variables
Rate of Constant Drying 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.
Symbol: Nc
Measurement: Mass FluxUnit: kg/s/m²
Note: Value should be greater than 0.
Dry Weight of Solid
The Dry Weight of Solid is the weight of dry solid present in the system in the drying mass transfer operation.
Symbol: WS
Measurement: WeightUnit: kg
Note: Value should be greater than 0.
Initial Moisture Content for Constant Rate Period
The Initial Moisture Content for Constant Rate Period is defined as the ratio of the weight of moisture to the weight of dry solid present initially in the wet solid for drying operation.
Symbol: Xi(Constant)
Measurement: NAUnit: Unitless
Note: Value should be less than 1.
Final Moisture Content for Constant Rate Period
The Final Moisture Content for Constant 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.
Symbol: Xf(Constant)
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.
Drying Surface Area
The Drying Surface Area is the total area in the drying mass transfer operation i.e. exposed in contact with the drying medium.
Symbol: A
Measurement: AreaUnit:
Note: Value should be greater than 0.
Constant Rate Drying Time
The Constant Rate Drying Time is the time taken for drying operation in the constant rate period.
Symbol: tc
Measurement: TimeUnit: s
Note: Value should be greater than 0.

Other Formulas to find Rate of Constant Drying Period

​Go Rate of Constant Drying Period based on Critical Moisture Content
Nc=WSXi(Constant)-XcAtc
​Go Rate of Constant Drying Period based on Critical to Final Moisture Content for Falling Rate Period
Nc=(WStf)(Xc-XEqA)(ln(Xc-XEqXf(Falling)-XEq))
​Go Rate of Constant Drying Period based on Critical to Final Weight of Moisture for Falling Rate Period
Nc=(Mc-MEqtfA)(ln(Mc-MEqMf(Falling)-MEq))
​Go Rate of Constant Drying Period based on Initial to Final Moisture Content for Falling Rate Period
Nc=(WStf)(Xi(Falling)-XEqA)(ln(Xi(Falling)-XEqXf(Falling)-XEq))

Other formulas in Drying from Initial to Final Moisture category

​Go Total Drying Time based on Constant Drying Time and Falling Drying Time
t=tc+tf
​Go Constant Drying Time from Initial to Critical Moisture Content
tc=WS(Xi(Constant)-Xc)(ANc)
​Go Constant Drying Time from Initial to Critical Weight of Moisture
tc=Mi(Constant)-McANc
​Go Critical Moisture Content based on Initial Moisture Content for Constant Rate Period
Xc=Xi(Constant)-(AtcNcWS)

How to Evaluate Rate of Constant Drying Period based on Final Moisture Content?

Rate of Constant Drying Period based on Final Moisture Content evaluator uses 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) to evaluate the Rate of Constant Drying Period, The Rate of Constant Drying Period based on Final Moisture Content formula is defined as the rate of drying in the constant rate period based on the specific drying conditions for drying from initial to final moisture content. Rate of Constant Drying Period is denoted by Nc symbol.

How to evaluate Rate of Constant Drying Period based on Final Moisture Content using this online evaluator? To use this online evaluator for Rate of Constant Drying Period based on Final Moisture Content, enter Dry Weight of Solid (WS), Initial Moisture Content for Constant Rate Period (Xi(Constant)), Final Moisture Content for Constant Rate Period (Xf(Constant)), Drying Surface Area (A) & Constant Rate Drying Time (tc) and hit the calculate button.

FAQs on Rate of Constant Drying Period based on Final Moisture Content

What is the formula to find Rate of Constant Drying Period based on Final Moisture Content?
The formula of Rate of Constant Drying Period based on Final Moisture Content is expressed as 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). Here is an example- 1.789474 = 100*(0.49-0.15)/(0.1*190).
How to calculate Rate of Constant Drying Period based on Final Moisture Content?
With Dry Weight of Solid (WS), Initial Moisture Content for Constant Rate Period (Xi(Constant)), Final Moisture Content for Constant Rate Period (Xf(Constant)), Drying Surface Area (A) & Constant Rate Drying Time (tc) we can find Rate of Constant Drying Period based on Final Moisture Content using the formula - 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).
What are the other ways to Calculate Rate of Constant Drying Period?
Here are the different ways to Calculate Rate of Constant Drying Period-
  • 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)OpenImg
  • 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)))OpenImg
  • 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)))OpenImg
Can the Rate of Constant Drying Period based on Final Moisture Content be negative?
No, the Rate of Constant Drying Period based on Final Moisture Content, measured in Mass Flux cannot be negative.
Which unit is used to measure Rate of Constant Drying Period based on Final Moisture Content?
Rate of Constant Drying Period based on Final Moisture Content is usually measured using the Kilogram per Second per Square Meter[kg/s/m²] for Mass Flux. Kilogram per Hour per Square Meter[kg/s/m²], Kilogram per Hour per Square Foot[kg/s/m²], Pound per Hour per Square Foot[kg/s/m²] are the few other units in which Rate of Constant Drying Period based on Final Moisture Content can be measured.
Copied!