Ashrae Duct Fitting Database Excel Site

⚠️ – requires copying coefficients into your own calculation sheet (no built-in simulation). ⚠️ Interpolation needed – many tables provide discrete geometry ratios; linear interpolation in Excel is user-driven. ⚠️ Version control – older versions (pre-2017) may use outdated coefficients or figure numbers. ⚠️ No 3D or CFD – cannot model complex interactions like skewed flow at junctions. ⚠️ Potential errors – manual data entry from PDF to Excel (if user-created) may have typos.

To create your own database or calculator in Excel, you need to extract the pertinent data from the ASHRAE handbook or the software. 1. Structure Your Spreadsheet Create a structured Excel sheet with the following columns: (e.g., CD3-1, RE5-1) Description (e.g., 90-degree round elbow) Key Dimensions (D, W, H, r/D) Loss Coefficient (C-factor) Velocity Pressure ( Pvcap P sub v ) Formula Pressure Loss ( ) 2. Implement the Formulas ashrae duct fitting database excel

Many HVAC software vendors license the ASHRAE database and repackage it as a clean Excel add-in. Tools like , Trane Duct Designer , or Wrightsoft offer export features that dump the database into CSV/Excel. Some sell the spreadsheet alone for ~$50-$150. ⚠️ – requires copying coefficients into your own

: Features pictorial outlines of each fitting, making it easier to select the correct component from the 200+ available options. Working with Excel Spreadsheets ⚠️ No 3D or CFD – cannot model

Cross-reference custom Excel tables directly with the official ASHRAE Handbook—Fundamentals or the standalone software to ensure no data entry typographical errors occurred.