) for over 200 distinct geometries. Total local pressure loss ( ) is determined using the universal equation:
: Expanded flexible duct fittings with precise radius-to-diameter ratios ( 2. Equation and Geometry Range Fixes ER2-2 : Repaired underlying fluid mathematical equations.
: C (Rectangular), S (Round/Circular), E (Flat Oval). ashrae duct fitting database version 60005
Using outdated static pressure data introduces compounding errors during the design phase. Version 6.00.05 addresses critical engineering liabilities.
): Explain how the database retrieves dimensionless coefficients based on geometry and Reynolds number. Detail the formula used: Pvcap P sub v is velocity pressure. ) for over 200 distinct geometries
[Outdated DFDB Version] ──> Over-approximated Static Pressure ──> Over-sized Fan ──> High Energy Costs & Noise [DFDB Version 6.00.05] ──> Precise Loss Coefficients ($C_o$) ──> Right-sized Fan ──> Code Compliance & Efficiency Eliminating the "Safety Factor" Penalty
Enter fitting dimensions, including width, height, radius, or takeoff angles. Define Airflow Velocity: Enter the velocity at the fitting. Calculate : C (Rectangular), S (Round/Circular), E (Flat Oval)
Version 60005 was released with enhanced API support. The database is now natively compatible with:
The ASHRAE Duct Fitting Database is a robust software application that provides loss coefficients (C-factors) for hundreds of different duct fittings. These fittings include various shapes—round, rectangular, and flat oval—and configurations, such as elbows, tees, transitions, and take-offs.