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Heat transfer coefficient in humidification Calculator

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✖Partial pressure of the water vapor at wet bulb temperature.ⓘ Partial Pressure [Pw]			+10% -10%
✖Partial pressure in air of the water vapor is the pressure of water in the mixture of water and air.ⓘ Partial Pressure in air [P∞]			+10% -10%
✖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.ⓘ Enthalpy of Evaporation [hfg]			+10% -10%
✖Convective Mass Transfer Coefficient is a function of geometry of the system and the velocity and properties of the fluid similar to the heat transfer coefficient.ⓘ Convective Mass Transfer Coefficient [k_L]			+10% -10%
✖Air temperature is the temperature of the air surrounding an individual and is typically measured in degrees Celsius (°C) or in Kelvin.ⓘ Air Temperature [T∞]			+10% -10%
✖Wet Bulb Temperature is the temperature of the wet bulb and denoted by the symbol Tw.ⓘ Wet Bulb Temperature [T_w]			+10% -10%

✖The Heat Transfer Coefficient is the heat transferred per unit area per kelvin. Thus area is included in the equation as it represents the area over which the transfer of heat takes place.ⓘ Heat transfer coefficient in humidification [h]

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Heat transfer coefficient in humidification Solution

STEP 0: Pre-Calculation Summary

Formula Used

Heat Transfer Coefficient = ((Partial Pressure-Partial Pressure in air)*(Enthalpy of Evaporation*Convective Mass Transfer Coefficient))/(Air Temperature-Wet Bulb Temperature)
h = ((Pw-P∞)*(hfg*k_L))/(T∞-T_w)
This formula uses 7 Variables

Variables Used

Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - The Heat Transfer Coefficient is the heat transferred per unit area per kelvin. Thus area is included in the equation as it represents the area over which the transfer of heat takes place.
Partial Pressure - Partial pressure of the water vapor at wet bulb temperature.
Partial Pressure in air - Partial pressure in air of the water vapor is the pressure of water in the mixture of water and air.
Enthalpy of Evaporation - (Measured in Joule per Kilogram K) - 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.
Convective Mass Transfer Coefficient - (Measured in Meter per Second) - Convective Mass Transfer Coefficient is a function of geometry of the system and the velocity and properties of the fluid similar to the heat transfer coefficient.
Air Temperature - Air temperature is the temperature of the air surrounding an individual and is typically measured in degrees Celsius (°C) or in Kelvin.
Wet Bulb Temperature - Wet Bulb Temperature is the temperature of the wet bulb and denoted by the symbol Tw.

STEP 1: Convert Input(s) to Base Unit

Partial Pressure: 13 --> No Conversion Required
Partial Pressure in air: 0.016 --> No Conversion Required
Enthalpy of Evaporation: 90 Joule per Kilogram K --> 90 Joule per Kilogram K No Conversion Required
Convective Mass Transfer Coefficient: 0.0095 Meter per Second --> 0.0095 Meter per Second No Conversion Required
Air Temperature: 35 --> No Conversion Required
Wet Bulb Temperature: 14 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h = ((Pw-P∞)*(hfg*k_L))/(T∞-T_w) --> ((13-0.016)*(90*0.0095))/(35-14)

Evaluating ... ...

h = 0.528634285714286

STEP 3: Convert Result to Output's Unit

0.528634285714286 Watt per Square Meter per Kelvin --> No Conversion Required

FINAL ANSWER

0.528634285714286 ≈ 0.528634 Watt per Square Meter per Kelvin <-- Heat Transfer Coefficient

(Calculation completed in 00.004 seconds)

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Home » Physics » Heat and Mass Transfer » Mechanical » Humidification » Heat transfer coefficient in humidification

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< Humidification Calculators

Gas phase heat transfer coefficient in dehumidification

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

Liquid layer temperature in dehumidification

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

Convective mass transfer coefficient in humidification

LaTeX Go Convective Mass Transfer Coefficient = (Convective Heat Transfer Coefficient*(Air Temperature-Wet Bulb Temperature))/(Enthalpy of Evaporation*(Partial Pressure-Partial Pressure in air))

Enthalpy of evaporation for water in humidification

LaTeX Go Enthalpy of Evaporation = (Convective Heat Transfer Coefficient*(Air Temperature-Wet Bulb Temperature))/(Convective Mass Transfer Coefficient*(Partial Pressure-Partial Pressure in air))

Heat transfer coefficient in humidification Formula

LaTeX Go

What is humidification?

Humidification is the process in which the moisture or water vapor or humidity is added to the air. Common equipment used in this process is a humidifier. Dehumidification as the term suggests, is the opposite of humidification since dehumidification means removing the moisture from the air. Common equipment used in this process is a dehumidifier.
Humidity is the presence of water vapor or moisture in the air, while relative humidity, on the other hand, is the comparison of the actual moisture or water vapor in the air vs. the total water vapor or moisture that the air can handle.

How to Calculate Heat transfer coefficient in humidification?

Heat transfer coefficient in humidification calculator uses Heat Transfer Coefficient = ((Partial Pressure-Partial Pressure in air)*(Enthalpy of Evaporation*Convective Mass Transfer Coefficient))/(Air Temperature-Wet Bulb Temperature) to calculate the Heat Transfer Coefficient, The Heat transfer coefficient in humidification formula is defined as the characteristic of convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid. Heat Transfer Coefficient is denoted by h symbol.

How to calculate Heat transfer coefficient in humidification using this online calculator? To use this online calculator for Heat transfer coefficient in humidification, enter Partial Pressure (Pw), Partial Pressure in air (P∞), Enthalpy of Evaporation (hfg), Convective Mass Transfer Coefficient (k_L), Air Temperature (T∞) & Wet Bulb Temperature (T_w) and hit the calculate button. Here is how the Heat transfer coefficient in humidification calculation can be explained with given input values -> 0.469897 = ((13-0.016)*(90*0.0095))/(35-14).

FAQ

What is Heat transfer coefficient in humidification?

The Heat transfer coefficient in humidification formula is defined as the characteristic of convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid and is represented as h = ((Pw-P∞)*(hfg*k_L))/(T∞-T_w) or Heat Transfer Coefficient = ((Partial Pressure-Partial Pressure in air)*(Enthalpy of Evaporation*Convective Mass Transfer Coefficient))/(Air Temperature-Wet Bulb Temperature). Partial pressure of the water vapor at wet bulb temperature, Partial pressure in air of the water vapor is the pressure of water in the mixture of water and air, 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, Convective Mass Transfer Coefficient is a function of geometry of the system and the velocity and properties of the fluid similar to the heat transfer coefficient, Air temperature is the temperature of the air surrounding an individual and is typically measured in degrees Celsius (°C) or in Kelvin & Wet Bulb Temperature is the temperature of the wet bulb and denoted by the symbol Tw.

How to calculate Heat transfer coefficient in humidification?

The Heat transfer coefficient in humidification formula is defined as the characteristic of convective heat transfer between a fluid medium (a fluid) and the surface (wall) flowed over by the fluid is calculated using Heat Transfer Coefficient = ((Partial Pressure-Partial Pressure in air)*(Enthalpy of Evaporation*Convective Mass Transfer Coefficient))/(Air Temperature-Wet Bulb Temperature). To calculate Heat transfer coefficient in humidification, you need Partial Pressure (Pw), Partial Pressure in air (P∞), Enthalpy of Evaporation (hfg), Convective Mass Transfer Coefficient (k_L), Air Temperature (T∞) & Wet Bulb Temperature (T_w). With our tool, you need to enter the respective value for Partial Pressure, Partial Pressure in air, Enthalpy of Evaporation, Convective Mass Transfer Coefficient, Air Temperature & Wet Bulb Temperature and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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