Unlike a physical ductulator (a cardboard wheel), the McQuay software also performs rectangular duct equivalent diameter calculations, making it indispensable for designing commercial HVAC systems.
To summarize the search for :
The (now part of the Daikin Applied Design Software Tools ) is a free digital tool used by HVAC engineers and technicians to calculate optimal duct dimensions. It serves as a digital version of the traditional "ductulator," streamlining complex calculations for both commercial and industrial ventilation systems. Key Features & Capabilities
: Supports both the Equal Friction (using flow rate and friction loss) and Equal Velocity (using flow rate and air velocity) methods.