By inputting specific design criteria—such as air velocity, density, and fitting dimensions—engineers can instantly retrieve the precise pressure loss coefficients ( Cocap C sub o ) required to size fans and optimize duct networks. Key Features of Version 6.00.05
The DFDB is a comprehensive digital repository compiled by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). It serves as the industry standard for determining pressure drops across various duct configurations. The database includes thousands of fittings, categorized by geometry, type (supply, exhaust, return), and configuration (elbows, transitions, junctions). Key Functions of the DFDB: Provides categorized by geometry