![]() The dew point is represented on the chart by Point 3. For this specific graph, it is measured in inches of mercury. Vapor pressure is measured in units of mercury. Vapor pressure is located at Point 2 on the graph. Dry bulb temperature is " basically the ambient air temperature." This element is measured in degrees Fahrenheit or degrees Celsius, while this specific one is measured in Fahrenheit. The dry bulb temperature is Point 1 on the graph. When given any two points on two different axes, all other components of the graph can be found. With this one graph, you will be able to configure nine different vital elements. Starting at one, they’re labeled as follows, respectively: Starting at the basics, there are nine different axes, which are categorized one through nine in the graph. To correctly read a psychrometric chart, here is a breakdown and visual representation. So why is it important to know how to read a psychrometric chart? Psychrometric charts allow you to track and monitor the physical and thermodynamic properties of gas-vapor mixtures. With so many lines and axes, you can get lost trying to follow the chart and find out which line represents which axis. Just taking a look at it, you may already be confused. Psychrometric charts can be pretty tricky to interpret. ![]()
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