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Gas phase mass transfer coefficient given humidity Formula

GoGas phase mass transfer coefficient in dehumidification Formula

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Gas phase mass transfer coefficient is a diffusion rate constant that relates the mass transfer rate, mass transfer area, and concentration change as driving force. Check FAQs

k y = (\frac{G}{Z}) \cdot \ln (\frac{Y i - Y 1}{Y i - Y2})

k_y - Gas Phase Mass Transfer Coefficient?G - Mass Velocity of Air?Z - Height?Y_i - Absolute Humidity at Final Temperature?Y₁ - Humidity of air at entry?Y2 - Humidity of air at exit?

Gas phase mass transfer coefficient given humidity Example

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Here is how the Gas phase mass transfer coefficient given humidity equation looks like with Values.

Here is how the Gas phase mass transfer coefficient given humidity equation looks like with Units.

Here is how the Gas phase mass transfer coefficient given humidity equation looks like.

72.2415 = (\frac{18}{0.05}) \cdot \ln (\frac{60 - 5}{60 - 15})

72.2415mol/s*m² = (\frac{18}{0.05m}) \cdot \ln (\frac{60 - 5}{60 - 15})

72.2415 = (\frac{18}{0.05}) \cdot \ln (\frac{60 - 5}{60 - 15})

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Gas phase mass transfer coefficient given humidity Solution

Follow our step by step solution on how to calculate Gas phase mass transfer coefficient given humidity?

FIRST Step Consider the formula

k y = (\frac{G}{Z}) \cdot \ln (\frac{Y i - Y 1}{Y i - Y2})

Next Step Substitute values of Variables

∴

k y = (\frac{18}{0.05m}) \cdot \ln (\frac{60 - 5}{60 - 15})

Next Step Prepare to Evaluate

∴

k y = (\frac{18}{0.05}) \cdot \ln (\frac{60 - 5}{60 - 15})

Next Step Evaluate

∴

k y = 72.2414503663745mol/s*m²

LAST Step Rounding Answer

∴

k y = 72.2415mol/s*m²

Gas phase mass transfer coefficient given humidity Formula Elements

Variables

Functions

Gas Phase Mass Transfer Coefficient

Gas phase mass transfer coefficient is a diffusion rate constant that relates the mass transfer rate, mass transfer area, and concentration change as driving force.

Symbol: k_y

Measurement: Molar Flux of Diffusing ComponentUnit: mol/s*m²

Note: Value can be positive or negative.

Formulas to find Gas Phase Mass Transfer Coefficient

Mass Velocity of Air

Mass velocity of air is the amount of air travelling per unit area in a second.

Symbol: G

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Mass Velocity of Air

Height

Height of the tower is the total length of the tower from the top to the bottom.

Symbol: Z

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Height

Absolute Humidity at Final Temperature

Absolute humidity at final temperature is the quality of water vapor in the wet air of unit volume at the final equilibrium air temperature.

Symbol: Y_i

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Absolute Humidity at Final Temperature

Humidity of air at entry

The humidity of air at entry is the quantity of water vapor at wet air in the entrance of the tower.

Symbol: Y₁

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Humidity of air at entry

Humidity of air at exit

Humidity of air at exit is the quantity of water vapor at wet air in the exit of the tower.

Symbol: Y2

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Humidity of air at exit

The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function.

Syntax: ln(Number)

Other Formulas to find Gas Phase Mass Transfer Coefficient

Go Gas phase mass transfer coefficient in dehumidification

k y = \frac{(h1 \cdot (t i - Tl)) - hg \cdot (Tg - t i)}{hfg \cdot (Yg - Yi)}

Other formulas in Humidification category

Go Enthalpy of evaporation for water in humidification

hfg = \frac{h Conv \cdot (T∞ - T w)}{k L \cdot (Pw - P∞)}

Go Convective mass transfer coefficient in humidification

k L = \frac{h Conv \cdot (T∞ - T w)}{hfg \cdot (Pw - P∞)}

Go Liquid layer temperature in dehumidification

Tl = t i - (\frac{(hg \cdot (Tg - t i)) + hfg \cdot k y \cdot (Yg - Yi)}{h1})

Go Gas phase heat transfer coefficient in dehumidification

hg = \frac{(h1 \cdot (t i - Tl)) - (hfg \cdot k y \cdot (Yg - Yi))}{Tg - t i}

How to Evaluate Gas phase mass transfer coefficient given humidity?

Gas phase mass transfer coefficient given humidity evaluator uses Gas Phase Mass Transfer Coefficient = (Mass Velocity of Air/Height)*ln((Absolute Humidity at Final Temperature-Humidity of air at entry)/(Absolute Humidity at Final Temperature-Humidity of air at exit)) to evaluate the Gas Phase Mass Transfer Coefficient, The Gas phase mass transfer coefficient given humidity formula is defined as the diffusivity of the gas phase to the boundary layer thickness. Gas Phase Mass Transfer Coefficient is denoted by k_y symbol.

How to evaluate Gas phase mass transfer coefficient given humidity using this online evaluator? To use this online evaluator for Gas phase mass transfer coefficient given humidity, enter Mass Velocity of Air (G), Height (Z), Absolute Humidity at Final Temperature (Y_i), Humidity of air at entry (Y₁) & Humidity of air at exit (Y2) and hit the calculate button.

FAQs on Gas phase mass transfer coefficient given humidity

What is the formula to find Gas phase mass transfer coefficient given humidity?

The formula of Gas phase mass transfer coefficient given humidity is expressed as Gas Phase Mass Transfer Coefficient = (Mass Velocity of Air/Height)*ln((Absolute Humidity at Final Temperature-Humidity of air at entry)/(Absolute Humidity at Final Temperature-Humidity of air at exit)). Here is an example- 72.24145 = (18/0.05)*ln((60-5)/(60-15)).

How to calculate Gas phase mass transfer coefficient given humidity?

With Mass Velocity of Air (G), Height (Z), Absolute Humidity at Final Temperature (Y_i), Humidity of air at entry (Y₁) & Humidity of air at exit (Y2) we can find Gas phase mass transfer coefficient given humidity using the formula - Gas Phase Mass Transfer Coefficient = (Mass Velocity of Air/Height)*ln((Absolute Humidity at Final Temperature-Humidity of air at entry)/(Absolute Humidity at Final Temperature-Humidity of air at exit)). This formula also uses Natural Logarithm (ln) function(s).

What are the other ways to Calculate Gas Phase Mass Transfer Coefficient?

Here are the different ways to Calculate Gas Phase Mass Transfer Coefficient-

Gas Phase Mass Transfer Coefficient=((Liquid Phase Heat Transfer Coefficient*(Inside Temperature-Liquid layer temperature))-Gas Phase Heat Transfer Coefficient*(Bulk Gas Temperature-Inside Temperature))/(Enthalpy of Evaporation*(Absolute Humidity of Air(tg)-Absolute Humidity (ti)))

Can the Gas phase mass transfer coefficient given humidity be negative?

Yes, the Gas phase mass transfer coefficient given humidity, measured in Molar Flux of Diffusing Component can be negative.

Which unit is used to measure Gas phase mass transfer coefficient given humidity?

Gas phase mass transfer coefficient given humidity is usually measured using the Mole per Second Square Meter[mol/s*m²] for Molar Flux of Diffusing Component. Kilogram Mole per Second Square Meter[mol/s*m²], Millimole per Microsecond Square Meter[mol/s*m²] are the few other units in which Gas phase mass transfer coefficient given humidity can be measured.

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Gas phase mass transfer coefficient given humidity Formula

​GoGas phase mass transfer coefficient in dehumidification Formula

Gas phase mass transfer coefficient given humidity Example

Gas phase mass transfer coefficient given humidity Solution

Gas phase mass transfer coefficient given humidity Formula Elements

Other Formulas to find Gas Phase Mass Transfer Coefficient

Other formulas in Humidification category

How to Evaluate Gas phase mass transfer coefficient given humidity?

FAQs on Gas phase mass transfer coefficient given humidity

Variable Name

GoGas phase mass transfer coefficient in dehumidification Formula