How To Read Psychrometric Chart !link! File

If you only remember one rule:

You run air through a cooling coil but do not remove water (no condensation). Your point moves straight left along a horizontal line. Dry-bulb drops. Humidity ratio stays constant. Relative humidity rises. how to read psychrometric chart

Once you understand how to read it, you stop guessing about humidity and comfort, and you start engineering precise environments. In this post, we will demystify the chart and teach you how to read it step-by-step. If you only remember one rule: You run

In dry climates, you can use the chart to see how much cooling you can get just by spraying water into the air. This process follows the Wet Bulb line. You can see visually that adding moisture lowers the Dry Bulb temperature (sensible cooling) while raising the humidity. Humidity ratio stays constant