Question

Is it possible the dry bulb, wet bulb and dew point temperatures for atmospheric air to be the same?

Answer 1

Dry bulb temperature: The temperature measured with the standard thermometer which no moisture or water present on its surface. It is commonly DBT for referring the temperature of air. Wet bulb temperature: The temperature measured by surrounding the thermometer with a wet wick. It is the temperature of air with a moisture content present in it. Dew point temperature: The temperature at which moist air starts to condense is Dew point temperature. The relative humidity increases when the temperature of air is dropped until a saturation point is reached and condensation happens. Yes, it is possible that the Dry bulb, Wet bulb and Dew point temperature for atmospheric air to be same at a saturation state. Where the relative humidity is 100% which means the air is fully saturated. The Dry bulb, Wet bulb and Dew point temperature are shown in the Psychrometric chart: 100%RH 0 80% 60% Saturation State Saturation line T°C DPT DBT WBT Hence, at saturation state all the three temperatures are same.