Ashrae Duct Fitting Database Version — 60005 New!

This paper examines the structure, coefficients, and usage of the ASHRAE Duct Fitting Database (DFDB) version 60005. The DFDB provides loss coefficients ((C) or (C_o)) for hundreds of duct fittings based on laboratory testing, as documented in ASHRAE Research Project RP-1173. Version 60005 likely represents a specific data snapshot or update within the ASHRAE fitting library. We describe the database schema, coefficient extraction methods, comparison with earlier versions (e.g., 50004), and integration into energy simulation tools (e.g., EnergyPlus, Trane Duct Designer). Agreement with measured data is within ±15% for most fittings. Recommendations for quality assurance and version control are provided.

: Detailed product information and subscriptions are available through the ASHRAE Bookstore . ashrae duct fitting database version 60005

: Included straight round ducts for constant equal friction (CD11-4) and velocity-limited scenarios (CD11-3), as well as new flexible elbow configurations (CD3-22, CD3-23). This paper examines the structure, coefficients, and usage

: Provides a graphical overview of all headings and fittings for faster navigation within the database. Version 6.00.05 Specific Updates Version 6.00.05 Specific Updates