: Platforms like the MEP Engineers Group often share macro-enabled Excel sheets designed to handle iterative duct calculations using ASHRAE-aligned formulas. 💡 Engineering Workarounds
: Real-time updates of loss coefficients and pressure losses as you adjust dimensions and airflow (CFM).
ratio) or adding turning vanes alters the total system pressure drop and fan brake horsepower (BHP).
If you cannot afford the official license or simply need a quick reference, use these alternatives. They are not the official ASHRAE database, but they replicate the coefficients from publicly available academic sources and older handbook editions (pre-2013).
It contains loss coefficients ((C_o)) for thousands of fittings, including: ashrae duct fitting database excel link
: Accessible via ductfitting.ashrae.org with an annual subscription.
: Both the web-based version and the mobile app feature a "Reports" option. You can select "Inputs and Results" to generate an HTML email that includes a spreadsheet attachment compatible with Microsoft Excel. Third-Party Excel Tools : Sites like
The best method to pull the database into Excel without breaking links:
:
: The database is frequently updated (e.g., version 5.0 and 6.0) to reflect current ASHRAE standards
Maximizing HVAC Efficiency: The Definitive Guide to the ASHRAE Duct Fitting Database Excel Link
The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) duct fitting database is a valuable resource for engineers, architects, and building designers who work with heating, ventilation, and air conditioning (HVAC) systems. The database provides a comprehensive collection of duct fitting data, including loss coefficients, which are essential for designing and optimizing HVAC systems. In this article, we will explore the ASHRAE duct fitting database and provide a step-by-step guide on how to access and utilize the database using an Excel link.
import ctypes from ctypes import c_long, c_double import xlwings as xw : Platforms like the MEP Engineers Group often
ASHRAE periodically updates loss coefficients based on new research. Ensure your external data connections or local source tables are updated to the latest version of the DFDB.
ASHRAE periodically refines its database based on new laboratory research. Ensure your Excel add-ins or underlying databases match the latest version of the fundamental handbook.
Using the ASHRAE duct fitting database offers several benefits, including:
Contrary to some searches, the full DFDB is not a free, directly downloadable Excel file. Instead, access is obtained via purchase from ASHRAE’s official channels: If you cannot afford the official license or