Psychrometric Chart Fahrenheit [upd] [UPDATED]
Located on the horizontal axis at the bottom, these vertical lines represent the air temperature as measured by a standard thermometer. As you move from left to right, the air gets warmer. 2. Wet Bulb Temperature (°F)
No tool is without caveats. The standard psychrometric chart assumes a constant atmospheric pressure, typically or 14.7 psia, corresponding to sea level. At higher altitudes, the entire chart shifts: the saturation curve lowers, and the relationships change. For Denver (elevation ~5,280 ft), a separate high-altitude Fahrenheit chart (at ~24.9 in Hg) must be used, or correction factors applied. psychrometric chart fahrenheit
The chart is typically plotted on a graph with dry-bulb temperature on the x-axis and humidity ratio on the y-axis. Located on the horizontal axis at the bottom,
Follow the vertical line up until it intersects the 50% curved line. Wet Bulb Temperature (°F) No tool is without caveats
To use the chart, you generally only need to know properties to find all the others. Here are the primary lines you’ll encounter: 1. Dry Bulb Temperature (°F)
Identifying the dew point to ensure pipes or windows don't "sweat" and cause mold or damage. How to Read the Chart: A Quick Example
Some key features of the psychrometric chart in Fahrenheit include: