Link fitting losses directly to your equipment schedules.
To effectively use an ASHRAE duct fitting link in Excel, you must have the following data points ready:
For those without the software, the ASHRAE Handbook—Fundamentals provides tables for common fittings. Many firms build their own internal Excel libraries by manually inputting these tables. Benefits of Linking ASHRAE Data to Excel ashrae duct fitting database excel link
Common fittings like elbows, tees, transitions, and fan plenums.
Finding a direct, functional "Excel link" for this database requires understanding how ASHRAE distributes the data and how you can integrate it into your spreadsheets. What is the ASHRAE Duct Fitting Database? Link fitting losses directly to your equipment schedules
Keep your heating/cooling loads and duct static pressure calculations in one project file.
Build "What-If" scenarios to see how changing a fitting affects total static pressure. Benefits of Linking ASHRAE Data to Excel Common
The specific code (e.g., SD5-1 for a mitered elbow). Velocity ( ): Calculated from flow (CFM) and area. Velocity Pressure ( Pvcap P sub v ): Usually calculated as for standard air. Loss Coefficient ( Cocap C sub o ): The value retrieved from the database. Total Pressure Loss: Calculated as Where to Buy and Download
💡 Always verify the "Loss Coefficient" units. Some databases use different reference velocities (main stream vs. branch stream), which can lead to significant errors if not linked correctly in your Excel formulas. If you’d like to build a custom tool, let me know:
To get the most current version of the data, visit the ASHRAE Bookstore . Ensure you are looking for the to get the best compatibility with modern Windows environments and Excel export capabilities.