How Do You Read A | Psychrometric Chart

Reading this chart allows you to diagnose comfort problems. If a room feels "clammy," looking at the chart might tell you that the air is at 75°F but the Dew Point is too high, meaning surfaces are likely getting wet. It transforms air from an abstract concept into a calculable physical substance.

Engineers use the Enthalpy scale to calculate exactly how much heat energy must be removed to cool a room. how do you read a psychrometric chart

Diagonal lines (often dashed or different color) sloping downward from left to right. What it is: Enthalpy is the total heat content of the air (Sensible heat + Latent heat). It is measured in BTU per pound of dry air. Why it matters: This tells you how much energy you need to add or remove to change the air's condition. Reading this chart allows you to diagnose comfort problems