Located on the vertical axis, this measures the actual mass of water vapor per unit mass of dry air.
Indicated by diagonal lines, this reflects the lowest temperature air can reach through evaporative cooling. It is measured by a thermometer covered in a wet wick. psychrometer chart
Why is it called a psychrometer chart? A psychrometer is the simple device (a sling psychrometer) with two thermometers—a dry bulb and a wet bulb. By swinging it, you get those two readings. You plot the intersection of those two points on the chart to instantly determine Relative Humidity, Dew Point, and Vapor Pressure without needing complex math. Located on the vertical axis, this measures the
By plotting temperature against moisture content, the chart allows engineers to visualize how air changes as it is heated, cooled, or humidified. Core Components of a Psychrometer Chart Why is it called a psychrometer chart
