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The Constant Rate Drying Time is the time taken for drying operation in the constant rate period. Check FAQs
tc=WS(Xi(Constant)-Xc)(ANc)
tc - Constant Rate Drying Time?WS - Dry Weight of Solid?Xi(Constant) - Initial Moisture Content for Constant Rate Period?Xc - Critical Moisture Content?A - Drying Surface Area?Nc - Rate of Constant Drying Period?

Constant Drying Time from Initial to Critical Moisture Content Example

With values
With units
Only example

Here is how the Constant Drying Time from Initial to Critical Moisture Content equation looks like with Values.

Here is how the Constant Drying Time from Initial to Critical Moisture Content equation looks like with Units.

Here is how the Constant Drying Time from Initial to Critical Moisture Content equation looks like.

190Edit=100Edit(0.49Edit-0.11Edit)(0.1Edit2Edit)
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Constant Drying Time from Initial to Critical Moisture Content Solution

Follow our step by step solution on how to calculate Constant Drying Time from Initial to Critical Moisture Content?

FIRST Step Consider the formula
tc=WS(Xi(Constant)-Xc)(ANc)
Next Step Substitute values of Variables
tc=100kg(0.49-0.11)(0.12kg/s/m²)
Next Step Prepare to Evaluate
tc=100(0.49-0.11)(0.12)
LAST Step Evaluate
tc=190s

Constant Drying Time from Initial to Critical Moisture Content Formula Elements

Variables
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.
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.
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.
Symbol: Xc
Measurement: NAUnit: Unitless
Note: Value should be less than 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.
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.

Other Formulas to find Constant Rate Drying Time

​Go Constant Drying Time from Initial to Critical Weight of Moisture
tc=Mi(Constant)-McANc
​Go Constant Drying Time from Initial to Final Moisture Content
tc=WSXi(Constant)-Xf(Constant)ANc
​Go Constant Drying Time from Initial to Final Weight of Moisture
tc=Mi(Constant)-Mf(Constant)ANc

Other formulas in Drying from Initial to Critical Moisture category

​Go Total Drying Time based on Constant Drying Time and Falling Drying Time
t=tc+tf
​Go Critical Moisture Content based on Initial Moisture Content for Constant Rate Period
Xc=Xi(Constant)-(AtcNcWS)
​Go Dry Weight of Solid from Initial to Critical Moisture Content for Constant Rate Period
WS=tcANcXi(Constant)-Xc
​Go Drying Surface Area based on Initial to Critical Moisture Content for Constant Rate Period
A=WSXi(Constant)-XctcNc

How to Evaluate Constant Drying Time from Initial to Critical Moisture Content?

Constant Drying Time from Initial to Critical Moisture Content evaluator uses 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)) to evaluate the Constant Rate Drying Time, The Constant Drying Time from Initial to Critical Moisture Content formula is defined as the time taken for drying in the constant rate period based on the specific drying conditions for drying from initial to critical moisture operation. Constant Rate Drying Time is denoted by tc symbol.

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

FAQs on Constant Drying Time from Initial to Critical Moisture Content

What is the formula to find Constant Drying Time from Initial to Critical Moisture Content?
The formula of Constant Drying Time from Initial to Critical Moisture Content is expressed as 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)). Here is an example- 190 = 100*((0.49-0.11))/((0.1*2)).
How to calculate Constant Drying Time from Initial to Critical Moisture Content?
With Dry Weight of Solid (WS), Initial Moisture Content for Constant Rate Period (Xi(Constant)), Critical Moisture Content (Xc), Drying Surface Area (A) & Rate of Constant Drying Period (Nc) we can find Constant Drying Time from Initial to Critical Moisture Content using the formula - 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)).
What are the other ways to Calculate Constant Rate Drying Time?
Here are the different ways to Calculate Constant Rate Drying Time-
  • Constant Rate Drying Time=(Initial Weight of Moisture for Constant Rate-Critical Weight of Moisture)/(Drying Surface Area*Rate of Constant Drying Period)OpenImg
  • 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)OpenImg
  • 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)OpenImg
Can the Constant Drying Time from Initial to Critical Moisture Content be negative?
No, the Constant Drying Time from Initial to Critical Moisture Content, measured in Time cannot be negative.
Which unit is used to measure Constant Drying Time from Initial to Critical Moisture Content?
Constant Drying Time from Initial to Critical Moisture Content is usually measured using the Second[s] for Time. Millisecond[s], Microsecond[s], Nanosecond[s] are the few other units in which Constant Drying Time from Initial to Critical Moisture Content can be measured.
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