Pv=ρ×V22cap P sub v equals the fraction with numerator rho cross cap V squared and denominator 2 end-fraction = Air density ( = Air velocity (
ΔP=Co×Pvcap delta cap P equals cap C sub o cross cap P sub v Version 6.00.05 provides the exact Cocap C sub o
By staying up-to-date with the latest developments in the ASHRAE Duct Fitting Database, engineers can ensure that they have access to the most accurate and reliable data for designing efficient and effective HVAC systems. ashrae duct fitting database version. 6.00.05
Comprehensive Guide to ASHRAE Duct Fitting Database Version 6.00.05
The database retains its .DFD file format, but Version 6.00.05 introduces a plugin pathway for Revit and AutoCAD MEP via a COM interface. This allows dynamic lookup of C-values directly from a 3D model—a major time-saver for large projects. Pv=ρ×V22cap P sub v equals the fraction with
Version 6.00.05 also provides an uncertainty band (±5% for most radiused elbows), which earlier versions did not disclose.
Version 6.00.05 was designed with the modern engineer in mind. Its interface and core functionality are built around a central philosophy: providing . This means that every piece of data, from the user’s inputs to the underlying coefficient tables and final calculations, is readily accessible and editable. One of its most lauded features is the ability to perform easily viewable calculations that update in real time , allowing engineers to see the immediate impact of changing a parameter, such as flow rate or duct diameter, on the resulting pressure loss. This interactive environment makes the design process both more efficient and more explorative. Version 6
The ASHRAE Duct Fitting Database is a specialized software application that contains loss coefficient data for more than 200 round, rectangular, and flat oval duct fittings. Instead of relying on generalized or outdated friction charts, the database utilizes experimental data compiled by ASHRAE research projects. The Role of Loss Coefficients ( Cocap C sub o
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Over 200 round, rectangular, and flat oval fittings categorized by function: supply, exhaust, and common (supply/return). Real-Time Calculations:
) and the total pressure drop. Save the individual fitting report or append it to your master project file. Benefits of Version 6.00.05 over Legacy Methods