Wet-bulb temperature is a thermodynamic property indicating the temperature a parcel of air would have if cooled to saturation (100% relative humidity) by the evaporation of water into it, with the latent heat being supplied by the parcel. For instance, if ambient air at a specific temperature is passed over a wet thermometer bulb, the evaporation of water will cool the bulb, resulting in a temperature reading lower than the dry-bulb temperature, assuming the air is not already saturated.
The determination of this temperature holds significance in various fields. It plays a crucial role in meteorology, agriculture, and human comfort assessment. It aids in predicting atmospheric conditions, assessing evaporative cooling efficiency, and evaluating heat stress levels, particularly in environments where humidity is a critical factor. Historically, the concept has been instrumental in understanding and managing environmental conditions affecting human health and productivity.
