Adiabatic Saturation Temperature Calculator

✖The Temperature of Air is defined as the temperature at which the air-water mixture properties in humidification are calculated.ⓘ Temperature of Air [T_G]			+10% -10%
✖Saturated exit air humidity is the level of water vapor in air that has reached its saturation point, often expressed as the maximum amount of moisture the air can hold at a specific temperature.ⓘ Saturated Exit Air Humidity [Y_S']			+10% -10%
✖Inlet Air Humidity refers to the actual amount of water vapor present in a unit volume of incoming air.ⓘ Inlet Air Humidity [Y']			+10% -10%
✖The heat of vaporization at adiabatic saturation temperature is the energy required per unit mass to convert liquid water into vapor during an adiabatic process.ⓘ Heat of Vaporization at Adiabatic Saturation Temp [λ_S]			+10% -10%
✖Humid Heat -The Heat capacity of 1Kg dry gas/air and whatever vapour/moisture contained in it. The heat capacity of humid air, expressed per unit mass of dry air in the mixture.ⓘ Humid Heat [C_s]			+10% -10%

✖Adiabatic saturation temperature is the temperature achieved when moist air undergoes an adiabatic process while being saturated with water vapor.ⓘ Adiabatic Saturation Temperature [T_S]

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Formula

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Adiabatic Saturation Temperature

Formula

`"T"_{"S"} = "T"_{"G"}-(("Y"_{"S"}"'")-"Y'")*("λ"_{"S"}/"C"_{"s"})`

Example

`"27.64286°C"="30°C"-("0.0172kg/kg of air"-"0.015kg/kg of air")*("2250kJ/kg"/"2.1kJ/kg*K")`

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Adiabatic Saturation Temperature Solution

STEP 0: Pre-Calculation Summary

Formula Used

Adiabatic Saturation Temperature = Temperature of Air-(Saturated Exit Air Humidity-Inlet Air Humidity)*(Heat of Vaporization at Adiabatic Saturation Temp/Humid Heat)
T_S = T_G-(Y_S'-Y')*(λ_S/C_s)
This formula uses 6 Variables

Variables Used

Adiabatic Saturation Temperature - (Measured in Kelvin) - Adiabatic saturation temperature is the temperature achieved when moist air undergoes an adiabatic process while being saturated with water vapor.
Temperature of Air - (Measured in Kelvin) - The Temperature of Air is defined as the temperature at which the air-water mixture properties in humidification are calculated.
Saturated Exit Air Humidity - (Measured in Kg of water vapour per Kg of air) - Saturated exit air humidity is the level of water vapor in air that has reached its saturation point, often expressed as the maximum amount of moisture the air can hold at a specific temperature.
Inlet Air Humidity - (Measured in Kg of water vapour per Kg of air) - Inlet Air Humidity refers to the actual amount of water vapor present in a unit volume of incoming air.
Heat of Vaporization at Adiabatic Saturation Temp - (Measured in Joule per Kilogram) - The heat of vaporization at adiabatic saturation temperature is the energy required per unit mass to convert liquid water into vapor during an adiabatic process.
Humid Heat - (Measured in Joule per Kilogram per K) - Humid Heat -The Heat capacity of 1Kg dry gas/air and whatever vapour/moisture contained in it. The heat capacity of humid air, expressed per unit mass of dry air in the mixture.

STEP 1: Convert Input(s) to Base Unit

Temperature of Air: 30 Celsius --> 303.15 Kelvin (Check conversion here)
Saturated Exit Air Humidity: 0.0172 Kg of water vapour per Kg of air --> 0.0172 Kg of water vapour per Kg of air No Conversion Required
Inlet Air Humidity: 0.015 Kg of water vapour per Kg of air --> 0.015 Kg of water vapour per Kg of air No Conversion Required
Heat of Vaporization at Adiabatic Saturation Temp: 2250 Kilojoule per Kilogram --> 2250000 Joule per Kilogram (Check conversion here)
Humid Heat: 2.1 Kilojoule per Kilogram per K --> 2100 Joule per Kilogram per K (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

T_S = T_G-(Y_S'-Y')*(λ_S/C_s) --> 303.15-(0.0172-0.015)*(2250000/2100)

Evaluating ... ...

T_S = 300.792857142857

STEP 3: Convert Result to Output's Unit

300.792857142857 Kelvin -->27.6428571428572 Celsius (Check conversion here)

FINAL ANSWER

27.6428571428572 ≈ 27.64286 Celsius <-- Adiabatic Saturation Temperature

(Calculation completed in 00.004 seconds)

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Home » Engineering » Chemical Engineering » Mass Transfer Operations » Humidification & Dehumidification » Adiabatic Saturation Temperature and Wet Bulb Temperature » Adiabatic Saturation Temperature

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Created by Vaibhav Mishra

DJ Sanghvi College of Engineering (DJSCE), Mumbai

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< 13 Adiabatic Saturation Temperature and Wet Bulb Temperature Calculators

Mass Transfer Coefficient based on Wet Bulb Temperature

Go 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)

Latent Heat of Air based on Wet Bulb Temperature

Go Heat of Vaporization at Wet Bulb Temperature = ((Temperature of Air-Wet Bulb Temperature)/(Air Humidity at Wet Bulb Temperature-Ambient Air Humidity))*(Heat Transfer Coefficient of the Air Film/Mass Transfer Coefficient of the Moisture)

Air Humidity at Wet Bulb Temperature based on Heat and Mass Transfer Rates

Go Air Humidity at Wet Bulb Temperature = Ambient Air Humidity+(Heat Transfer Coefficient of the Air Film/(Mass Transfer Coefficient of the Moisture*Heat of Vaporization at Wet Bulb Temperature))*(Temperature of Air-Wet Bulb Temperature)

Heat Transfer Coefficient based on Wet Bulb Temperature

Go Heat Transfer Coefficient of the Air Film = Mass Transfer Coefficient of the Moisture*Heat of Vaporization at Wet Bulb Temperature*((Air Humidity at Wet Bulb Temperature-Ambient Air Humidity)/(Temperature of Air-Wet Bulb Temperature))

Ambient Air Temperature based on Wet Bulb Temperature

Go Temperature of Air = Wet Bulb Temperature+(Air Humidity at Wet Bulb Temperature-Ambient Air Humidity)*((Mass Transfer Coefficient of the Moisture*Heat of Vaporization at Wet Bulb Temperature)/Heat Transfer Coefficient of the Air Film)

Ambient Air Humidity based on Wet Bulb Temperature

Go Ambient Air Humidity = Air Humidity at Wet Bulb Temperature-(Heat Transfer Coefficient of the Air Film/(Mass Transfer Coefficient of the Moisture*Heat of Vaporization at Wet Bulb Temperature))*(Temperature of Air-Wet Bulb Temperature)

Wet Bulb Temperature

Go Wet Bulb Temperature = Temperature of Air-(Air Humidity at Wet Bulb Temperature-Ambient Air Humidity)*((Mass Transfer Coefficient of the Moisture*Heat of Vaporization at Wet Bulb Temperature)/Heat Transfer Coefficient of the Air Film)

Saturated Exit Air Humidity based on Adiabatic Saturation Temperature

Go Saturated Exit Air Humidity = (Temperature of Air-Adiabatic Saturation Temperature)*(Humid Heat/Heat of Vaporization at Adiabatic Saturation Temp)+Inlet Air Humidity

Air Inlet Temperature based on Adiabatic Saturation Temperature

Go Temperature of Air = (Saturated Exit Air Humidity-Inlet Air Humidity)*(Heat of Vaporization at Adiabatic Saturation Temp/Humid Heat)+Adiabatic Saturation Temperature

Latent Heat of Air based on Adiabatic Saturation Temperature

Go Heat of Vaporization at Adiabatic Saturation Temp = (Temperature of Air-Adiabatic Saturation Temperature)/(Saturated Exit Air Humidity-Inlet Air Humidity)*Humid Heat

Inlet Air Humidity based on Adiabatic Saturation Temperature

Go Inlet Air Humidity = Saturated Exit Air Humidity-(Temperature of Air-Adiabatic Saturation Temperature)*(Humid Heat/Heat of Vaporization at Adiabatic Saturation Temp)

Humid Heat of Air based on Adiabatic Saturation Temperature

Go Humid Heat = (Saturated Exit Air Humidity-Inlet Air Humidity)/(Temperature of Air-Adiabatic Saturation Temperature)*Heat of Vaporization at Adiabatic Saturation Temp

Adiabatic Saturation Temperature

Go Adiabatic Saturation Temperature = Temperature of Air-(Saturated Exit Air Humidity-Inlet Air Humidity)*(Heat of Vaporization at Adiabatic Saturation Temp/Humid Heat)

Adiabatic Saturation Temperature Formula

Adiabatic Saturation Temperature = Temperature of Air-(Saturated Exit Air Humidity-Inlet Air Humidity)*(Heat of Vaporization at Adiabatic Saturation Temp/Humid Heat)
T_S = T_G-(Y_S'-Y')*(λ_S/C_s)

What is Adiabatic Saturation Temperature?

Adiabatic saturation temperature, is the temperature reached by air as it becomes saturated with water vapor without any heat exchange with the surroundings. This phenomenon is vital in processes involving humidification and cooling, where understanding the adiabatic saturation temperature is essential for designing efficient systems. In chemical engineering applications, precise control of moisture content and temperature is crucial for optimizing reaction conditions and maintaining desired product quality. Adiabatic saturation principles are particularly pertinent in designing equipment such as absorbers, where the interaction between gases and liquids is central to achieving desired process outcomes.

What is Humidification Process?

The humidification process involves adding moisture to indoor air to increase its relative humidity. It begins by measuring the current humidity level using a hygrometer. A desired humidity level is set, typically between 30% and 60%. Different humidification methods like evaporative, steam, or ultrasonic are chosen based on space requirements. The humidifier, often equipped with a humidistat, is then operated to release moisture. As the humidifier maintains the setpoint, it continuously monitors and controls humidity levels. Regular maintenance is essential to prevent issues and ensure safe and effective operation, especially in dry environments or during winter when indoor heating can dry out the air.

How to Calculate Adiabatic Saturation Temperature?

Adiabatic Saturation Temperature calculator uses Adiabatic Saturation Temperature = Temperature of Air-(Saturated Exit Air Humidity-Inlet Air Humidity)*(Heat of Vaporization at Adiabatic Saturation Temp/Humid Heat) to calculate the Adiabatic Saturation Temperature, The Adiabatic Saturation Temperature formula is defined as the humidity saturation temperature of the inlet air undergoing an adiabatic process. Adiabatic Saturation Temperature is denoted by T_S symbol.

How to calculate Adiabatic Saturation Temperature using this online calculator? To use this online calculator for Adiabatic Saturation Temperature, enter Temperature of Air (T_G), Saturated Exit Air Humidity (Y_S'), Inlet Air Humidity (Y'), Heat of Vaporization at Adiabatic Saturation Temp (λ_S) & Humid Heat (C_s) and hit the calculate button. Here is how the Adiabatic Saturation Temperature calculation can be explained with given input values -> 300.7929 = 303.15-(0.0172-0.015)*(2250000/2100).

FAQ

What is Adiabatic Saturation Temperature?

The Adiabatic Saturation Temperature formula is defined as the humidity saturation temperature of the inlet air undergoing an adiabatic process and is represented as T_S = T_G-(Y_S'-Y')*(λ_S/C_s) or Adiabatic Saturation Temperature = Temperature of Air-(Saturated Exit Air Humidity-Inlet Air Humidity)*(Heat of Vaporization at Adiabatic Saturation Temp/Humid Heat). The Temperature of Air is defined as the temperature at which the air-water mixture properties in humidification are calculated, Saturated exit air humidity is the level of water vapor in air that has reached its saturation point, often expressed as the maximum amount of moisture the air can hold at a specific temperature, Inlet Air Humidity refers to the actual amount of water vapor present in a unit volume of incoming air, The heat of vaporization at adiabatic saturation temperature is the energy required per unit mass to convert liquid water into vapor during an adiabatic process & Humid Heat -The Heat capacity of 1Kg dry gas/air and whatever vapour/moisture contained in it. The heat capacity of humid air, expressed per unit mass of dry air in the mixture.

How to calculate Adiabatic Saturation Temperature?

The Adiabatic Saturation Temperature formula is defined as the humidity saturation temperature of the inlet air undergoing an adiabatic process is calculated using Adiabatic Saturation Temperature = Temperature of Air-(Saturated Exit Air Humidity-Inlet Air Humidity)*(Heat of Vaporization at Adiabatic Saturation Temp/Humid Heat). To calculate Adiabatic Saturation Temperature, you need Temperature of Air (T_G), Saturated Exit Air Humidity (Y_S'), Inlet Air Humidity (Y'), Heat of Vaporization at Adiabatic Saturation Temp (λ_S) & Humid Heat (C_s). With our tool, you need to enter the respective value for Temperature of Air, Saturated Exit Air Humidity, Inlet Air Humidity, Heat of Vaporization at Adiabatic Saturation Temp & Humid Heat 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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