: Once installed, these tools allow you to use psychrometric formulas just like standard Excel functions (e.g., =Enthalpy(Temp, RH, Press) ).
: A free tool based on ASHRAE correlations that works with both Metric (SI) and English (IP) units. It is designed specifically for HVAC applications and energy audits. Available at: kW Engineering Psychrometrics Key Features of Excel Add-ins psychrometric calculator excel free download
First, calculate the saturation vapor pressure. This is the pressure at which the air cannot hold any more water. : Once installed, these tools allow you to
Land-grant universities with engineering departments often host free tools. Search for "Extension university psychrometric Excel sheet." These are usually clean, verified, and come with user guides. : Once installed