) for over 200 distinct geometries. Total local pressure loss ( ) is determined using the universal equation:
Intuitive Search and Filtering: Users can quickly locate fittings by inputting specific parameters such as aspect ratios, flow rates, and velocity. The software dynamically calculates the loss coefficient based on the user's specific inputs, providing instant results that can be exported directly into design reports.
values into Revit fitting families to ensure absolute accuracy. Value Engineering and Cost Control
For decades, the industry standard for calculating these critical pressure losses has been the . With the release of Version 60005 , engineers, contractors, and BIM technicians have received a substantial update that refines how we model air distribution.
: Supports both I-P (Imperial) and SI (Metric) units for global project application. ashrae duct fitting database version 60005
Reduce Operational Costs: Precise calculations allow for the selection of the most efficient fan for the specific load.
Modern iterations, including the updated functionalities consistent with the 6.00.05 framework, are available via annual subscription for instant access.
The database often provides (C) for Static Pressure loss. If your system design uses Total Pressure , you must apply a conversion factor listed in the Appendix of version 60005.
: Diverging/converging tees, wyes, transitions, elbows, and hoods. 2. Enhanced Calculation Engine ) for over 200 distinct geometries
Input fitting geometry (e.g., radius ratio for elbows or angle for transitions). Retrieve the loss coefficient to apply the formula: is air density and is velocity. الجامعة المستنصرية Duct Fitting Database - ASHRAE
This article provides a deep dive into the ASHRAE Duct Fitting Database, specifically highlighting the functionality and importance of , its features, and its role in modern HVAC engineering. What is the ASHRAE Duct Fitting Database (DFDB)?
The DFDB, particularly in its Version 6.00.05 iteration, provides a robust set of features that streamline the HVAC design workflow:
Fittings are cataloged using a strict alphanumeric system. The prefix identifies the shape and role of the system component: values into Revit fitting families to ensure absolute
During the design-development phase, sheet metal contractors may request fitting substitutions to reduce fabrication costs—for example, swapping a radiused elbow with splitter vanes for a square throat elbow. By plugging both options into Version 6.00.05, the engineer can instantly quantify the penalty to the system's static pressure and decide if the cost savings justify the increased fan energy consumption. Energy Code Compliance (ASHRAE Standard 90.1)
: The latest version is available via an annual subscription, allowing for easier updates and accessibility. Extensive Library
Where (P_v) is the velocity pressure. Version 60005 is the latest iteration of this database, released to support ASHRAE’s Fundamentals Handbook and HVAC Duct Construction Standards .