ΔP=Co×Pvcap delta cap P equals cap C sub o cross cap P sub v ΔPcap delta cap P is the total pressure loss, Cocap C sub o is the loss coefficient, and Pvcap P sub v is the velocity pressure ( in IP). Alternatives & Third-Party Tools
The DFDB software and its derivatives facilitate the creation of detailed reports for system analysis: Custom Projects ashrae duct fitting database excel
for quick field calculations, which includes a subset of common fittings and allows results to be emailed as spreadsheet attachments for further analysis. How to Build Your Own Excel ESP Calculator ΔP=Co×Pvcap delta cap P equals cap C sub
April 13, 2026 Subject: Evaluation and Application of ASHRAE’s Duct Fitting Database in Excel ashrae duct fitting database excel