Refrigeration and Air Conditioning
In a saturated air-water vapour mixture, the

Dry bulb, wet bulb and dew point temperature are same
Dry bulb temperature is higher than wet bulb temperature
Dry bulb temperature is higher than dew point temperature
Dew point temperature is lower than wet bulb temperature

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Refrigeration and Air Conditioning
It is desired to condition the outside air from 70% relative humidity and 45° C dry bulb temperature to 50% relative humidity and 25° C dry bulb temperature (room condition). The practical arrangement will be

Dehumidification and pure sensible cooling
Cooling and dehumidification
Cooling and humidification
Dehumidification

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