What makes your “Enhanced Equal Friction” Duct Calculator better than the typical duct calculator wheel or sliderule?
Our “Duct Sizing Calculator – To Avoid Obstructions” uses a modified equal friction sizing procedure, including velocity reduction at larger air quantities. In addition our “Enhanced Equal Friction Duct Sizing” incorporates “Duct Sizing to Avoid Obstructions” (such as beams) in the ceiling space. The program also includes Yellow or Red warning “Flags” if the space below the beam is too small and would result in duct sizing that exceeds recommended aspect ratios. Additionally, the Duct Sizing calculations select the most economical duct sizes to fit within the available space. The typical duct calculator wheels give a wide range of possible sizes and it is left to the Designer to pick one of the many possibilities. Depending on the experience of the Designer or the time available for duct sizing, the selection of duct sizes could result in ducts that won’t fit in the space (which can lead to Change Orders!). Also, the ducts could be significantly more expensive to install and also to op
