Ashrae Duct Fitting Database 2016 ^hot^ < Authentic >

Introduction

Official Title:

ASHRAE Duct Fitting Database 2016: Key Features

• Four 12x20 mitered elbows (no vanes): Old (C=1.5) → New (C=1.15) (due to revised aspect ratio correction).
• Two 45° wyes (C3-5): Old (C=0.9) → New (C=0.62) (after accounting for velocity ratio).
• Total static pressure recalculated from 2.8 in. w.g. to 2.2 in. w.g.

ASHRAE Duct Fitting Database (DFDB) is a specialized digital tool used by HVAC design engineers to calculate pressure losses in ductwork systems. The 2016 period specifically aligns with Version 6.00.05

The "2016" designation is critical, as it incorporates updated research on Computational Fluid Dynamics (CFD) and empirical testing, superseding previous versions from 2005, 2009, and 2013. ashrae duct fitting database 2016

To use the database effectively:

) for specific fittings. This value represents the dynamic pressure loss caused by turbulence as air moves through turns, transitions, or obstructions. Four 12x20 mitered elbows (no vanes): Old (C=1