However, Excel does not inherently know HVAC physics. It requires input data. This creates the demand for the "ASHRAE Duct Fitting Database in Excel."
ASHRAE sells a standalone desktop application. Many workflows involve using the app to look up specific, complex fitting coefficients and manually pasting those values into an Excel master static pressure profile sheet. ashrae duct fitting database excel
A drop-down menu referencing your Fitting_Database tab. Loss Coefficient ( ): Automatically populated using lookup formulas. Pressure Drop ( ): = C * p_v . Step 3: Automate the -Factor Lookup However, Excel does not inherently know HVAC physics