Ashrae Duct Fitting Database Excel Link
Step 3 — Normalize sizes and convert rectangular to equivalent diameter
). Include a correction factor cell for projects at high altitudes or extreme temperatures.
Search and select the exact fitting code (e.g., CR3-1 for a pleated elbow). ashrae duct fitting database excel link
Multiply your looked-up coefficient by the calculated velocity pressure: = Fitting_Coefficient * Velocity_Pressure
Once you have your raw ASHRAE coefficients hosted on a reference tab in Excel, use this structural layout to build an automated calculator. Step 1: Set Up the Input Columns Create a table with the following headers for user inputs: (e.g., EF1-1, SF2-3) Step 3 — Normalize sizes and convert rectangular
The ASHRAE duct fitting database is a collection of data on various duct fittings, including elbows, tees, wyes, and other fittings commonly used in HVAC systems. The database provides detailed information on the loss coefficients of these fittings, which are used to calculate the pressure drop and airflow resistance in duct systems. The database is widely used by engineers and designers to ensure that their HVAC system designs are efficient, cost-effective, and meet the required performance standards.
: Always lock your background data sheets and protect formulas to prevent accidental deletion or overwriting by other team members. The database is widely used by engineers and
Pressure Loss (ΔP)=Co×VpPressure Loss open paren cap delta cap P close paren equals cap C sub o cross cap V sub p
: Accessible via ductfitting.ashrae.org with an annual subscription.
When building your own sheet, enable in Excel's Options. Since pressure drop depends on airflow and airflow depends on pressure drop, this setting allows Excel to solve the circular references common in duct design. If you'd like, I can help you: Find a specific fitting code (e.g., SD5-9) Draft a template for an ESP calculation in Excel Compare subscription costs for the official database