Wet-bulb temperature
Videos
The wet-bulb temperature is the lowest temperature that can be reached by the evaporation of water under current ambient conditions. It combines humidity and temperature to better reflect heat stress
A sling psychrometer. The small fabric sock covering the bulb of the upper thermometer is wet with distilled water and whirled around for a minute or more before taking the "wet-bulb" thermometer's reading. The lower thermometer provides the "dry-bulb" temperature.
A wet-and-dry hygrometer featuring a wet-bulb thermometer
Cloud forest mount kinabalu with Hygrom
Evaporative cooler
Videos
An evaporative cooler is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression or absorption refrigerat
Wet-bulb temperature
…temperature is equal to air temperature, or dry-bulb temperature. At lower humidity, the wet-bulb temperature is lower than dry-bulb temperature due to evaporative cooling. Wet-bulb temperature is formally defined as the temperature of a parcel of air cooled adiabatically to saturation (100% relative humidity) by the…
An Egyptian qullah, set in drafts to cool interiors. Porous pottery and coarse cloth maximize the area for evaporation.
A salasabil cooling fountain (Red Fort, Delhi, India)
A traditional air cooler in Mirzapur, Uttar Pradesh, India
California ranch house with evaporative cooler box on roof ridgeline on right