FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Partial pressure of water vapor at wet bulb temperature Formula

Fx Copy

LaTeX Copy

Partial pressure of the water vapor at wet bulb temperature. Check FAQs

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

Pw - Partial Pressure?h_Conv - Convective Heat Transfer Coefficient?T∞ - Air Temperature?T_w - Wet Bulb Temperature?hfg - Enthalpy of Evaporation?k_L - Convective Mass Transfer Coefficient?P∞ - Partial Pressure in air?

Partial pressure of water vapor at wet bulb temperature Example

With values

With units

Only example

Here is how the Partial pressure of water vapor at wet bulb temperature equation looks like with Values.

Here is how the Partial pressure of water vapor at wet bulb temperature equation looks like with Units.

Here is how the Partial pressure of water vapor at wet bulb temperature equation looks like.

12.2967 = (\frac{0.5 \cdot (35 - 14)}{90 \cdot 0.0095}) + 0.016

12.2967 = (\frac{0.5W/m²*K \cdot (35 - 14)}{90J/kg*K \cdot 0.0095m/s}) + 0.016

12.2967 = (\frac{0.5 \cdot (35 - 14)}{90 \cdot 0.0095}) + 0.016

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Physics » Category

Mechanical » Category

Heat and Mass Transfer » fx Partial pressure of water vapor at wet bulb temperature

Partial pressure of water vapor at wet bulb temperature Solution

Follow our step by step solution on how to calculate Partial pressure of water vapor at wet bulb temperature?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

Pw = (\frac{0.5W/m²*K \cdot (35 - 14)}{90J/kg*K \cdot 0.0095m/s}) + 0.016

Next Step Prepare to Evaluate

∴

Pw = (\frac{0.5 \cdot (35 - 14)}{90 \cdot 0.0095}) + 0.016

Next Step Evaluate

∴

Pw = 12.296701754386

LAST Step Rounding Answer

∴

Pw = 12.2967

Partial pressure of water vapor at wet bulb temperature Formula Elements

Variables

Partial Pressure

Partial pressure of the water vapor at wet bulb temperature.

Symbol: Pw

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Partial Pressure

Convective Heat Transfer Coefficient

Convective Heat Transfer Coefficient is the heat transfer due to convection.

Symbol: h_Conv

Measurement: Heat Transfer CoefficientUnit: W/m²*K

Note: Value can be positive or negative.

Formulas to find Convective 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.

Symbol: T∞

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Air Temperature

Wet Bulb Temperature

Wet Bulb Temperature is the temperature of the wet bulb and denoted by the symbol Tw.

Symbol: T_w

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Wet Bulb Temperature

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

Convective Mass Transfer Coefficient

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.

Symbol: k_L

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Convective Mass Transfer Coefficient

Partial Pressure in air

Partial pressure in air of the water vapor is the pressure of water in the mixture of water and air.

Symbol: P∞

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Partial Pressure in air

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 Partial pressure of water vapor at wet bulb temperature?

Partial pressure of water vapor at wet bulb temperature evaluator uses Partial Pressure = ((Convective Heat Transfer Coefficient*(Air Temperature-Wet Bulb Temperature))/(Enthalpy of Evaporation*Convective Mass Transfer Coefficient))+Partial Pressure in air to evaluate the Partial Pressure, The Partial pressure of water vapor at wet bulb temperature formula is defined as the pressure of the water vapor at wet bulb temerature. Partial Pressure is denoted by Pw symbol.

How to evaluate Partial pressure of water vapor at wet bulb temperature using this online evaluator? To use this online evaluator for Partial pressure of water vapor at wet bulb temperature, enter Convective Heat Transfer Coefficient (h_Conv), Air Temperature (T∞), Wet Bulb Temperature (T_w), Enthalpy of Evaporation (hfg), Convective Mass Transfer Coefficient (k_L) & Partial Pressure in air (P∞) and hit the calculate button.

FAQs on Partial pressure of water vapor at wet bulb temperature

What is the formula to find Partial pressure of water vapor at wet bulb temperature?

The formula of Partial pressure of water vapor at wet bulb temperature is expressed as Partial Pressure = ((Convective Heat Transfer Coefficient*(Air Temperature-Wet Bulb Temperature))/(Enthalpy of Evaporation*Convective Mass Transfer Coefficient))+Partial Pressure in air. Here is an example- 13.83179 = ((0.5*(35-14))/(90*0.0095))+0.016.

How to calculate Partial pressure of water vapor at wet bulb temperature?

With Convective Heat Transfer Coefficient (h_Conv), Air Temperature (T∞), Wet Bulb Temperature (T_w), Enthalpy of Evaporation (hfg), Convective Mass Transfer Coefficient (k_L) & Partial Pressure in air (P∞) we can find Partial pressure of water vapor at wet bulb temperature using the formula - Partial Pressure = ((Convective Heat Transfer Coefficient*(Air Temperature-Wet Bulb Temperature))/(Enthalpy of Evaporation*Convective Mass Transfer Coefficient))+Partial Pressure in air.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Partial pressure of water vapor at wet bulb temperature Formula

Partial pressure of water vapor at wet bulb temperature Example

Partial pressure of water vapor at wet bulb temperature Solution

Partial pressure of water vapor at wet bulb temperature Formula Elements

Other formulas in Humidification category

How to Evaluate Partial pressure of water vapor at wet bulb temperature?

FAQs on Partial pressure of water vapor at wet bulb temperature

Variable Name