Duct Sizing Utility
The Automated Duct Sizing utility adds specialized HVAC analytical capabilities. It includes preliminary centerline routing and performs resizing by optimizing route path duct sections. Best suited in 3D-routed duct system consisting of connected components, potentially with an air-handling unit and terminal devices. This utility brings enhancement over the past version tools for analyzing routes. It maps system and performs sizing algorithms, re-sizes and rebuilds system. The utility provides ability to edit system to coordinate layout and re-analyze to produce completed system and create part, fan sizing and pressure drop outputs. It demonstrates actual resize and component replacement by fetching the component types and fittings database and loading the duct sizing tables. The utility computes and lists the Velocity Pressure exiting "change-in-flow" or "change-in-size" components in the interactive tables.
Working in concert with the newly introduced single line layout capabilities, or with the existing 3D design capability HVAC systems can be loaded into the design tool to calculate system requirements and parameters. Fitting combinations presented in the ASHRAE Duct Fitting Database v 6.0 are being utilized to set up a correlation to path pressure drop values that can be derived directly from the database. Once calculations have been completed, air handling sources and such as fans and equipment can be resized in their capacity and the total pressure classification of the system can be determined.
Prior to loading the duct system for sizing, the system settings are done to set design data, define size criteria and reporting parameters.
- Highlight sections
- Shows calculated sizes and round equivalents
- Lock options for size, velocity and duct pressure loss
- Review Loss coefficients details
- Calculation details
- Identify index run path
- Add notes to components and reports
- Create summary reports
- Instantiate calculations and/or re-build for single line (recommended) or 3D systems