A detailed explanation of the psychrometric chart and the properties of air – Part II
The chart shows other important moist air properties as diagrammed in Figure 2: wet-bulb temperature; enthalpy; dewpoint or saturation temperature; relative humidity; and specific volume. See the Definitions section for an explanation of these terms. Moist air can be described by finding the intersection of any two of these properties. This is called a "state point." From the state point all the other properties can be read. The key is to determine which interest. Some practice with examples will help....
