Ashrae Duct Fitting Database Excel Review

By following this guide, you'll be able to effectively use the ASHRAE Duct Fitting Database in Excel to calculate pressure losses in duct systems and improve the accuracy of your HVAC designs.

If you prefer to build a custom tool without a live link to the database, you can use the and Colebrook equations found in the ASHRAE Handbook of Fundamentals . ashrae duct fitting database excel

For HVAC design engineers, calculating pressure drop isn't just about following codes—it’s about ensuring the fan you select can actually move the air required for the space. While you can perform calculations directly in the official ASHRAE DFDB , an Excel-based workflow offers more flexibility for complex projects. 1. Why Use an Excel-Based Workflow? By following this guide, you'll be able to

: Full access requires an annual cloud-based subscription, which some find restrictive for small projects. Flexible Units : Supports both I-P (Imperial) and SI (Metric) units. Specific Fitting Gaps While you can perform calculations directly in the

Enter dimensions, airflow (CFM), and material roughness into the database to get the specific loss coefficient or pressure loss.

The database consists of several sheets: