Ashrae Duct Fitting Database Excel _verified_ [PLUS — 2024]

It includes data for rectangular, round, and flat-oval ducts.

ASHRAE does not provide a direct version of the entire Duct Fitting Database (DFDB) . Instead, the official tool is a cloud-based application available by annual subscription, which contains loss coefficient tables for over 200 fitting types. How to use ASHRAE data in Excel

Calculate total external static pressure (ESP) for hundreds of fittings simultaneously.

=INDEX(Data_Grid, MATCH(Row_Input, Row_Range, 1), MATCH(Col_Input, Col_Range, 1)) Handling Intermediate Values (Linear Interpolation) ASHRAE tables list distinct intervals (e.g., ). If your design features an intermediate ratio like ashrae duct fitting database excel

. For these specific fittings, you must convert the algebraic equations into native Excel formulas or write a custom function using Visual Basic for Applications (VBA).

-factor based on two variables (e.g., Aspect Ratio on the X-axis and Reynolds Number or Angle on the Y-axis), use a combination of INDEX and MATCH :

: Both the desktop and mobile versions of the database allow users to generate reports. These reports often include a spreadsheet attachment (CSV or XLS) that can be opened on a desktop for further analysis and integration into larger project documentation. It includes data for rectangular, round, and flat-oval ducts

If you have specific fitting types you'd like to automate or need help structuring your Excel file, let me know!

Limitations:

The DFDB is a repository of loss coefficient tables for over round, rectangular, and flat oval duct fittings. It is primarily used by design engineers to determine the pressure needed to overcome resistance in duct components like elbows, transitions, and reducers. 2. Integration with Excel How to use ASHRAE data in Excel Calculate

Includes pictorial outlines and diagrams for each fitting type.

In Duct_Calc , cell C2 (where you need the loss coefficient):