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Liquid phase heat transfer coefficient in dehumidification Formula

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Liquid Phase Heat Transfer Coefficient is the heat transfer in liquid per unit area in kelvin. Check FAQs

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

h1 - Liquid Phase Heat Transfer Coefficient?hg - Gas Phase Heat Transfer Coefficient?Tg - Bulk Gas Temperature?Ti - Temperature at inner surface?hfg - Enthalpy of Evaporation?k_y - Gas Phase Mass Transfer Coefficient?Yg - Absolute Humidity of Air(tg)?Yi - Absolute Humidity (ti)?Tl - Liquid layer temperature?

Liquid phase heat transfer coefficient in dehumidification Example

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Here is how the Liquid phase heat transfer coefficient in dehumidification equation looks like with Values.

Here is how the Liquid phase heat transfer coefficient in dehumidification equation looks like with Units.

Here is how the Liquid phase heat transfer coefficient in dehumidification equation looks like.

-27827 = \frac{(40 \cdot (100 - 30)) + 90 \cdot 90 \cdot (16 - 50.7)}{30 - 20}

-27827W/m²*K = \frac{(40W/m²*K \cdot (100 - 30)) + 90J/kg*K \cdot 90mol/s*m² \cdot (16 - 50.7)}{30 - 20}

-27827 = \frac{(40 \cdot (100 - 30)) + 90 \cdot 90 \cdot (16 - 50.7)}{30 - 20}

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Liquid phase heat transfer coefficient in dehumidification Solution

Follow our step by step solution on how to calculate Liquid phase heat transfer coefficient in dehumidification?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

h1 = \frac{(40W/m²*K \cdot (100 - 30)) + 90J/kg*K \cdot 90mol/s*m² \cdot (16 - 50.7)}{30 - 20}

Next Step Prepare to Evaluate

∴

h1 = \frac{(40 \cdot (100 - 30)) + 90 \cdot 90 \cdot (16 - 50.7)}{30 - 20}

LAST Step Evaluate

∴

h1 = -27827W/m²*K

Liquid phase heat transfer coefficient in dehumidification Formula Elements

Variables

Liquid Phase Heat Transfer Coefficient

Liquid Phase Heat Transfer Coefficient is the heat transfer in liquid per unit area in kelvin.

Symbol: h1

Measurement: Heat Transfer CoefficientUnit: W/m²*K

Note: Value can be positive or negative.

Formulas to find Liquid Phase Heat Transfer Coefficient

Gas Phase Heat Transfer Coefficient

Gas Phase Heat Transfer Coefficient is the heat transfer in gas per unit area in kelvin.

Symbol: hg

Measurement: Heat Transfer CoefficientUnit: W/m²*K

Note: Value can be positive or negative.

Formulas to find Gas Phase Heat Transfer Coefficient

Bulk Gas Temperature

Bulk gas temperature is adiabatic mixing of the gas from a given cross section of duct will result in some equilibrium temperature that accurately reflects average temperature of the moving fluid.

Symbol: Tg

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Bulk Gas Temperature

Temperature at inner surface

Temperature at inner surface is the temperature value at the inner surface of the wall.

Symbol: Ti

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Temperature at inner surface

Enthalpy of Evaporation

Enthalpy of evaporation is the amount of energy (enthalpy) that must be added to a liquid substance to transform a quantity of that substance into a gas.

Symbol: hfg

Measurement: Specific EntropyUnit: J/kg*K

Note: Value can be positive or negative.

Formulas to find Enthalpy of Evaporation

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

Absolute Humidity of Air(tg)

Absolute Humidity of Air(tg) at the initial air temperature.

Symbol: Yg

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Absolute Humidity of Air(tg)

Absolute Humidity (ti)

Absolute humidity (ti) is the quality of water vapor in the wet air of unit volume at temperature ti.

Symbol: Yi

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Absolute Humidity (ti)

Liquid layer temperature

Liquid layer temperature is defined as the temperature of the flowing liquid layer in dehumidification.

Symbol: Tl

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Liquid layer temperature

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∞)}

How to Evaluate Liquid phase heat transfer coefficient in dehumidification?

Liquid phase heat transfer coefficient in dehumidification evaluator uses Liquid Phase Heat Transfer Coefficient = ((Gas Phase Heat Transfer Coefficient*(Bulk Gas Temperature-Temperature at inner surface))+Enthalpy of Evaporation*Gas Phase Mass Transfer Coefficient*(Absolute Humidity of Air(tg)-Absolute Humidity (ti)))/(Temperature at inner surface-Liquid layer temperature) to evaluate the Liquid Phase Heat Transfer Coefficient, The Liquid phase heat transfer coefficient in dehumidification formula is defined as the convective heat transfer relation between liquid medium and surface on which the liquid is flowing. Liquid Phase Heat Transfer Coefficient is denoted by h1 symbol.

How to evaluate Liquid phase heat transfer coefficient in dehumidification using this online evaluator? To use this online evaluator for Liquid phase heat transfer coefficient in dehumidification, enter Gas Phase Heat Transfer Coefficient (hg), Bulk Gas Temperature (Tg), Temperature at inner surface (Ti), Enthalpy of Evaporation (hfg), Gas Phase Mass Transfer Coefficient (k_y), Absolute Humidity of Air(tg) (Yg), Absolute Humidity (ti) (Yi) & Liquid layer temperature (Tl) and hit the calculate button.

FAQs on Liquid phase heat transfer coefficient in dehumidification

What is the formula to find Liquid phase heat transfer coefficient in dehumidification?

The formula of Liquid phase heat transfer coefficient in dehumidification is expressed as Liquid Phase Heat Transfer Coefficient = ((Gas Phase Heat Transfer Coefficient*(Bulk Gas Temperature-Temperature at inner surface))+Enthalpy of Evaporation*Gas Phase Mass Transfer Coefficient*(Absolute Humidity of Air(tg)-Absolute Humidity (ti)))/(Temperature at inner surface-Liquid layer temperature). Here is an example- -24704 = ((40*(100-30))+90*90*(16-50.7))/(30-20).

How to calculate Liquid phase heat transfer coefficient in dehumidification?

With Gas Phase Heat Transfer Coefficient (hg), Bulk Gas Temperature (Tg), Temperature at inner surface (Ti), Enthalpy of Evaporation (hfg), Gas Phase Mass Transfer Coefficient (k_y), Absolute Humidity of Air(tg) (Yg), Absolute Humidity (ti) (Yi) & Liquid layer temperature (Tl) we can find Liquid phase heat transfer coefficient in dehumidification using the formula - Liquid Phase Heat Transfer Coefficient = ((Gas Phase Heat Transfer Coefficient*(Bulk Gas Temperature-Temperature at inner surface))+Enthalpy of Evaporation*Gas Phase Mass Transfer Coefficient*(Absolute Humidity of Air(tg)-Absolute Humidity (ti)))/(Temperature at inner surface-Liquid layer temperature).

Can the Liquid phase heat transfer coefficient in dehumidification be negative?

Yes, the Liquid phase heat transfer coefficient in dehumidification, measured in Heat Transfer Coefficient can be negative.

Which unit is used to measure Liquid phase heat transfer coefficient in dehumidification?

Liquid phase heat transfer coefficient in dehumidification is usually measured using the Watt per Square Meter per Kelvin[W/m²*K] for Heat Transfer Coefficient. Watt per Square Meter per Celcius[W/m²*K], Joule per Second per Square Meter per Kelvin[W/m²*K], Kilocalorie (IT) per Hour per Square Foot per Celcius[W/m²*K] are the few other units in which Liquid phase heat transfer coefficient in dehumidification can be measured.

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Liquid phase heat transfer coefficient in dehumidification Formula

Liquid phase heat transfer coefficient in dehumidification Example

Liquid phase heat transfer coefficient in dehumidification Solution

Liquid phase heat transfer coefficient in dehumidification Formula Elements

Other formulas in Humidification category

How to Evaluate Liquid phase heat transfer coefficient in dehumidification?

FAQs on Liquid phase heat transfer coefficient in dehumidification

Variable Name