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Mass Transfer Coefficient based on Wet Bulb Temperature Formula

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Mass Transfer Coefficient of the Moisture is the proportionality factor between the mass transfer rate and the concentration driving force. Check FAQs

k Y' = (\frac{T G - T W}{Y W' - Y A}) \cdot (\frac{h G}{λ W})

k_Y' - Mass Transfer Coefficient of the Moisture?T_G - Temperature of Air?T_W - Wet Bulb Temperature?Y_W' - Air Humidity at Wet Bulb Temperature?Y_A - Ambient Air Humidity?h_G - Heat Transfer Coefficient of the Air Film?λ_W - Heat of Vaporization at Wet Bulb Temperature?

Mass Transfer Coefficient based on Wet Bulb Temperature Example

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Here is how the Mass Transfer Coefficient based on Wet Bulb Temperature equation looks like with Values.

Here is how the Mass Transfer Coefficient based on Wet Bulb Temperature equation looks like with Units.

Here is how the Mass Transfer Coefficient based on Wet Bulb Temperature equation looks like.

0.0107 = (\frac{30 - 21}{0.021 - 0.016}) \cdot (\frac{13.32}{2250})

0.0107mol/s*m² = (\frac{30°C - 21°C}{0.021kg/kg of air - 0.016kg/kg of air}) \cdot (\frac{13.32W/m²*K}{2250kJ/kg})

0.0107 = (\frac{30 - 21}{0.021 - 0.016}) \cdot (\frac{13.32}{2250})

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Mass Transfer Coefficient based on Wet Bulb Temperature Solution

Follow our step by step solution on how to calculate Mass Transfer Coefficient based on Wet Bulb Temperature?

FIRST Step Consider the formula

k Y' = (\frac{T G - T W}{Y W' - Y A}) \cdot (\frac{h G}{λ W})

Next Step Substitute values of Variables

∴

k Y' = (\frac{30°C - 21°C}{0.021kg/kg of air - 0.016kg/kg of air}) \cdot (\frac{13.32W/m²*K}{2250kJ/kg})

Next Step Convert Units

∴

k Y' = (\frac{303.15K - 294.15K}{0.021kg/kg of air - 0.016kg/kg of air}) \cdot (\frac{13.32W/m²*K}{2.3E+6J/kg})

Next Step Prepare to Evaluate

∴

k Y' = (\frac{303.15 - 294.15}{0.021 - 0.016}) \cdot (\frac{13.32}{2.3E+6})

Next Step Evaluate

∴

k Y' = 0.010656mol/s*m²

LAST Step Rounding Answer

∴

k Y' = 0.0107mol/s*m²

Mass Transfer Coefficient based on Wet Bulb Temperature Formula Elements

Variables

Mass Transfer Coefficient of the Moisture

Mass Transfer Coefficient of the Moisture is the proportionality factor between the mass transfer rate and the concentration driving force.

Symbol: k_Y'

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

Note: Value should be greater than 0.

Formulas to find Mass Transfer Coefficient of the Moisture

Temperature of Air

The Temperature of Air is defined as the temperature at which the air-water mixture properties in humidification are calculated.

Symbol: T_G

Measurement: TemperatureUnit: °C

Note: Value should be greater than -273.15.

Formulas to find Temperature of Air

Wet Bulb Temperature

Wet bulb temperature is the lowest temperature attainable by evaporating water into air at constant pressure.

Symbol: T_W

Measurement: TemperatureUnit: °C

Note: Value should be greater than -273.15.

Formulas to find Wet Bulb Temperature

Air Humidity at Wet Bulb Temperature

Air humidity at Wet Bulb Temperature refers to the moisture content present in the surrounding air at a given location at the Wet Bulb temperature.

Symbol: Y_W'

Measurement: Specific HumidityUnit: kg/kg of air

Note: Value should be greater than 0.

Formulas to find Air Humidity at Wet Bulb Temperature

Ambient Air Humidity

Ambient air humidity refers to the moisture content present in the surrounding air at a given location an temperature.

Symbol: Y_A

Measurement: Specific HumidityUnit: kg/kg of air

Note: Value should be greater than 0.

Formulas to find Ambient Air Humidity

Heat Transfer Coefficient of the Air Film

Heat Transfer Coefficient of the Air Film is the proportionality factor between the heat transfer rate and the temperature driving force.

Symbol: h_G

Measurement: Heat Transfer CoefficientUnit: W/m²*K

Note: Value should be greater than 0.

Formulas to find Heat Transfer Coefficient of the Air Film

Heat of Vaporization at Wet Bulb Temperature

The heat of vaporization at wet bulb temperature is the energy required per unit mass to convert liquid water into vapor at the wet bulb temperature of the gas liquid mixture.

Symbol: λ_W

Measurement: Latent HeatUnit: kJ/kg

Note: Value should be greater than 0.

Formulas to find Heat of Vaporization at Wet Bulb Temperature

Other formulas in Adiabatic Saturation Temperature and Wet Bulb Temperature category

Go Adiabatic Saturation Temperature

T S = T G - (Y S' - Y') \cdot (\frac{λ S}{C s})

Go Air Inlet Temperature based on Adiabatic Saturation Temperature

T G = (Y S' - Y') \cdot (\frac{λ S}{C s}) + T S

How to Evaluate Mass Transfer Coefficient based on Wet Bulb Temperature?

Mass Transfer Coefficient based on Wet Bulb Temperature evaluator uses Mass Transfer Coefficient of the Moisture = ((Temperature of Air-Wet Bulb Temperature)/(Air Humidity at Wet Bulb Temperature-Ambient Air Humidity))*(Heat Transfer Coefficient of the Air Film/Heat of Vaporization at Wet Bulb Temperature) to evaluate the Mass Transfer Coefficient of the Moisture, The Mass Transfer Coefficient based on Wet Bulb Temperature formula is defined as the mass transfer coefficient of the air-water mixture where the evaporation of air for its saturation is represented by the wet bulb temperature. Mass Transfer Coefficient of the Moisture is denoted by k_Y' symbol.

How to evaluate Mass Transfer Coefficient based on Wet Bulb Temperature using this online evaluator? To use this online evaluator for Mass Transfer Coefficient based on Wet Bulb Temperature, enter Temperature of Air (T_G), Wet Bulb Temperature (T_W), Air Humidity at Wet Bulb Temperature (Y_W'), Ambient Air Humidity (Y_A), Heat Transfer Coefficient of the Air Film (h_G) & Heat of Vaporization at Wet Bulb Temperature (λ_W) and hit the calculate button.

FAQs on Mass Transfer Coefficient based on Wet Bulb Temperature

What is the formula to find Mass Transfer Coefficient based on Wet Bulb Temperature?

The formula of Mass Transfer Coefficient based on Wet Bulb Temperature is expressed as Mass Transfer Coefficient of the Moisture = ((Temperature of Air-Wet Bulb Temperature)/(Air Humidity at Wet Bulb Temperature-Ambient Air Humidity))*(Heat Transfer Coefficient of the Air Film/Heat of Vaporization at Wet Bulb Temperature). Here is an example- 0.010656 = ((303.15-294.15)/(0.021-0.016))*(13.32/2250000).

How to calculate Mass Transfer Coefficient based on Wet Bulb Temperature?

With Temperature of Air (T_G), Wet Bulb Temperature (T_W), Air Humidity at Wet Bulb Temperature (Y_W'), Ambient Air Humidity (Y_A), Heat Transfer Coefficient of the Air Film (h_G) & Heat of Vaporization at Wet Bulb Temperature (λ_W) we can find Mass Transfer Coefficient based on Wet Bulb Temperature using the formula - Mass Transfer Coefficient of the Moisture = ((Temperature of Air-Wet Bulb Temperature)/(Air Humidity at Wet Bulb Temperature-Ambient Air Humidity))*(Heat Transfer Coefficient of the Air Film/Heat of Vaporization at Wet Bulb Temperature).

Can the Mass Transfer Coefficient based on Wet Bulb Temperature be negative?

No, the Mass Transfer Coefficient based on Wet Bulb Temperature, measured in Molar Flux of Diffusing Component cannot be negative.

Which unit is used to measure Mass Transfer Coefficient based on Wet Bulb Temperature?

Mass Transfer Coefficient based on Wet Bulb Temperature 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 Mass Transfer Coefficient based on Wet Bulb Temperature can be measured.

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Mass Transfer Coefficient based on Wet Bulb Temperature Formula

Mass Transfer Coefficient based on Wet Bulb Temperature Example

Mass Transfer Coefficient based on Wet Bulb Temperature Solution

Mass Transfer Coefficient based on Wet Bulb Temperature Formula Elements

Other formulas in Adiabatic Saturation Temperature and Wet Bulb Temperature category

How to Evaluate Mass Transfer Coefficient based on Wet Bulb Temperature?

FAQs on Mass Transfer Coefficient based on Wet Bulb Temperature

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