Psychrometric Table Pdf

The gold standard. ASHRAE Handbook – Fundamentals (Chapter 1) includes both SI and I-P unit tables. These tables are based on the Hyland-Wexler formulations, the most accurate equations for moist air.

To use these tables, you need two measurements usually taken with a sling psychrometer Dry-Bulb Temperature ( cap T sub d b end-sub : The standard air temperature. Wet-Bulb Temperature ( cap T sub w b end-sub psychrometric table pdf

: The temperature recorded by a thermometer with a wet wick, cooled by evaporation. Steps for Lookup: Calculate the "Depression" : Subtract the wet-bulb from the dry-bulb ( Locate the Row : Find your Dry-Bulb Temperature on the vertical axis. Locate the Column The gold standard

The temperature at which air must be cooled for water vapor to condense into liquid. Humidity Ratio To use these tables, you need two measurements