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🌀 What is wet bulb temperature?

➖ The wet-bulb temperature (WBT) is the temperature read by a thermometer covered in water-soaked cloth (a wet-bulb thermometer) over which air is passed.

➖ At 100% relative humidity, the wet-bulb temperature is equal to the air temperature (dry-bulb temperature);

➖ At lower humidity the wet-bulb temperature is lower than dry-bulb temperature because of evaporative cooling.

➖ The wet-bulb temperature is defined as the temperature of a parcel of air cooled to saturation (100% relative humidity) by the evaporation of water into it, with the latent heat supplied by the parcel.

➖ A wet-bulb thermometer indicates a temperature close to the true (thermodynamic) wet-bulb temperature.

➖ The wet-bulb temperature is the lowest temperature that can be reached under current ambient conditions by the evaporation of water only.

➖ When the severity and frequency of high heat increases, there is a marker to determine the possibility of fatality, which is wet bulb temperature.

➖ The highest acceptable wet-bulb temperature for humans is 35 °C (95 °F) for six hours. Above that point, even healthy people begin to develop serious, often deadly health problems.

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