Each fitting includes a visual representation, making it easy to identify and apply the correct loss coefficient table.
Addition of constant equal friction straight ducts (CD11-4) and velocity-limited round ducts (CD11-3).
Version 60005 adds approximately that were previously absent or only found in obscure manufacturer catalogs. Key additions include: ashrae duct fitting database version 60005
V=QAcap V equals the fraction with numerator cap Q and denominator cap A end-fraction = Velocity of the air = Volumetric flow rate = Cross-sectional area of the duct The velocity pressure ( Pvcap P sub v ) is then established:
Includes supply, exhaust, and common duct functions based on the ASHRAE Handbook—Fundamentals . Each fitting includes a visual representation, making it
The is an indispensable tool for HVAC designers. By providing accurate, tabulated loss coefficient data in a user-friendly format, it bridges the gap between theoretical fluid dynamics and practical duct design. Its use ensures that systems are energy-efficient, compliant, and operate effectively within the built environment.
Demonstrating optimized, low-pressure drop duct design contributes to energy performance optimization credits under the USGBC framework. Conclusion Key additions include: V=QAcap V equals the fraction
Where (P_v) is the velocity pressure. Version 60005 is the latest iteration of this database, released to support ASHRAE’s Fundamentals Handbook and HVAC Duct Construction Standards .