Common fittings like elbows, tees, transitions, and fan plenums.
Instead of writing complex nested formulas, a user can type a custom function directly into a cell, such as =ASHRAE_Fitting_Loss("SD1-1", FlowRate, Width, Height) . The add-in queries the background database and returns the precise pressure drop instantly.
The ASHRAE DFDB is a comprehensive repository of over 200 loss coefficient tables for round, rectangular, and flat oval duct fittings. It allows users to input airflow (CFM) and dimensions to automatically obtain the loss coefficient ( ) and the associated pressure loss. ashrae duct fitting database excel link
Create a dropdown menu populated with ASHRAE fitting categories. When a user selects a fitting code and inputs the required geometric ratios (such as entry-to-exit area ratios or branch-to-main flow ratios), your XLOOKUP or API link retrieves the corresponding Cocap C sub o value from the linked ASHRAE tables. Step 4: Compute Fitting Total Pressure Loss
Maximizing Efficiency with the ASHRAE Duct Fitting Database Excel Link Common fittings like elbows, tees, transitions, and fan
(Deducted 0.5 stars only for the occasionally clunky Excel Add-In setup process).
Engineers often use the Excel link to bridge the gap between specific fitting losses and the total system pressure drop. Custom Analysis : Professionals often transfer data from the database to a custom Excel calculator The ASHRAE DFDB is a comprehensive repository of
I can provide the exact formulas or code structures to advance your spreadsheet design. Share public link
Ensure all open programs are closed—including those minimized on the taskbar. Then reinstall the program and reboot your computer.