The is a high-precision digital tool designed for HVAC engineers to calculate pressure loss across complex duct networks. Developed by ASHRAE in collaboration with Carmel Software Corporation , this version serves as the industry standard for determining duct fitting loss coefficients (C-factors). Key Features of Version 6.00.05
Technical Analysis of the ASHRAE Duct Fitting Database Version 6.00.05
If you are looking to integrate or update this software within your engineering workflow, let me know. Proactively tell me:
Instead of just providing the pressure loss for a single selected fitting, this feature would allow you to compare design alternatives automatically. Fitting Alternatives Suggestion:
Version 6.00.05 computes these interactions in real time, matching exact input geometries with experimentally verified lookup curves. ashrae duct fitting database version. 6.00.05
The software is currently available via a cloud-based annual subscription from , ensuring users always have access to the latest fitting data. For engineers in the field, the Duct Fitting Database Lite app is available on the Apple App Store, providing a subset of fittings for quick on-site calculations.
Inch-Pound system (CFM, inches of water gauge, feet per minute). SI Units: International System of Units ( , Pascals, meters per second). 4. Dynamic Calculation Engine
Version 6.00.05 represents a stable, refined release of the standalone desktop application. It resolves legacy code bugs and ensures seamless operation on modern enterprise workstations. 1. Updated Fitting Coefficients
Efficient ductwork design directly impacts building energy consumption, indoor acoustics, and system balance. The ASHRAE Duct Fitting Database Version 6.00.05 digitizes complex dynamic loss tables, eliminating error-prone manual interpolation from print handbooks. Core Engineering Mechanics of the Database The is a high-precision digital tool designed for
The software uses the classic fluid mechanics pressure loss equation:
Interconnects converging and diverging flow equations for complex junctions. 3. Seamless Integration and Export
The primary application of the database is determining the of a ventilation system.
The DFDB is increasingly designed for interoperability with other major engineering software. The ability to export data in formats means K-values and fitting data can be directly imported into systems like Autodesk Revit , Excel , and various duct-sizing or CFD software . Furthermore, the database's standardized fitting IDs (e.g., "ED1-4") are commonly used to tag components in BIM models, ensuring consistency between the digital model and the underlying engineering calculations. Proactively tell me: Instead of just providing the
For decades, the American Society of Heating, Reheating, and Air-Conditioning Engineers (ASHRAE) has provided the gold standard for these calculations. The represents a vital tool for mechanical engineers, designers, and bim specialists seeking to eliminate guesswork from duct system attenuation and pressure drop calculations. What is the ASHRAE Duct Fitting Database?
= Velocity pressure evaluated at the reference cross-section, calculated as:
For engineers looking to deepen their expertise, version 6.00.05 is part of a larger ecosystem of ASHRAE resources. Alongside the database, ASHRAE offers the "Duct Size Calculator" for approximating metal and flexible duct sizes and the ASHRAE Handbook, which provides the foundational context for understanding and applying the DFDB data. For specialized applications, standards like (testing HVAC systems) and SMACNA duct construction standards complement the DFDB.