in Excel:
How to Establish the ASHRAE Duct Fitting Database Excel Link
Common fittings like elbows, tees, transitions, and fan plenums.
Because ASHRAE distributes its database as a compiled software application or standalone utility, achieving an "Excel link" typically involves one of three methodologies depending on your technical resources: export/import workflows, developer APIs, or custom visual basic implementations. Method 1: The Built-In Desktop Export Workflow ashrae duct fitting database excel link
: Platforms like the MEP Engineers Group often share macro-enabled Excel sheets designed to handle iterative duct calculations using ASHRAE-aligned formulas. 💡 Engineering Workarounds
import ctypes from ctypes import c_long, c_double import xlwings as xw
Achieving a functional link between ASHRAE's validated data and Excel depends on the specific version of the software you own and your internal engineering toolset. 1. Using the Official ASHRAE DFDB Desktop Export Feature in Excel: How to Establish the ASHRAE Duct
Which (IP or SI) does your organization prioritize?
=GetLossCoefficient(401, 1.5, 0, 0) → returns Co for a 90° elbow with r/D=1.5.
ΔP=Co×Pvcap delta cap P equals cap C sub o cross cap P sub v =GetLossCoefficient(401, 1
The ASHRAE Duct Fitting Database Excel file offers several benefits to users, including:
These add-ins introduce custom Excel formulas directly into your formula bar. Instead of looking up a value, you can type a formula similar to this: =ASHRAE_Fitting_Loss("SD5-1", Diameter, Velocity, Radius_Ratio) The add-in runs the background polynomial equations established by ASHRAE and returns the precise coefficient instantly. Method 3: Custom VBA Lookup Matrices
Ensure your calculations account for non-standard air density if designing systems for high-altitude locations or high-temperature exhaust.
By utilizing a direct ASHRAE Excel link, engineering firms can confidently optimize air distribution systems, deliver highly accurate engineering submittals, and adhere closely to building energy standards like ASHRAE Standard 90.1.
) for various duct configurations. Manually transferring this data into design spreadsheets is slow and causes errors. Linking the ASHRAE Duct Fitting Database with Microsoft Excel automates your calculations, increases design speed, and ensures compliance with ASHRAE standards. What is the ASHRAE Duct Fitting Database?