The wet bulb temperature is the adiabatic saturation temperature.
Wet bulb dry bulb thermometer.
Air humidity can be estimated by measuring.
Combining the dry bulb and wet bulb temperature in a psychrometric diagram or mollier chart gives the state of the humid air.
Wet bulb temperature t wb can be measured with a standard thermometer with some wet clothing cotton or similar around the bulb.
At lower humidity the wet bulb temperature is lower than dry bulb temperature because of evaporative cooling.
Dry bulb temperature t db can be measured with a simple thermometer as shown above.
Note that continuously air flow around the thermometer is important to evaporate.
Temperature of the ordinary air measured by the thermometer when it is covered by wet cloth or wick is called as the wet bulb temperature commonly referred to as wbt.
The dry bulb temperature is basically the temperature of the air but the wet bulb temperature is affected by the evaporation of water from the fabric enclosing the bulb.
At 100 relative humidity the wet bulb temperature is equal to the air temperature dry bulb temperature.
By definition wet bulb temperature is the lowest temperature a portion of air can acquire by evaporative cooling only.
Dry bulb temperature and.
The adiabatic evaporation of water from the thermometer bulb and the cooling effect is indicated by a wet bulb temperature lower than the dry bulb temperature in the air.
The wet bulb temperature wbt is the temperature read by a thermometer covered in water soaked cloth wet bulb thermometer over which air is passed.
The concept behind a wet bulb thermometer is simple but keep in mind that to measure relative humidity it has to be used in conjunction with a dry bulb thermometer.
The temperature of the air measured by the ordinary thermometer is called as the dry bulb temperature of air commonly referred as dbt.
Wet bulb temperature can be measured by using a thermometer with the bulb wrapped in wet muslin.