What is psychometry? And the definition relative humidity and absolute humidity
Psychrometry is the study of air and water vapor mixtures. In air conditioning the air is not dry, but rather a mixture of air and water vapor, resulting in the importance of psychrometry. In some processes the water is removed from the air, while in others it is added. The psychrometric chart is one of the most useful tools available to assist the refrigeration and air conditioning technician in the study of air conditioning. The relative humidity () expressed as a percentage is the ratio of the partial pressure of the actual water vapor to the saturation pressure at the same temperature. The Absolute Humidity: is the relation between the mass of water vapor and the mass of dry air. It is expressed in kg of steam per kg of dry air.
