HVAC - How to Size and Design Ducts

This online engineering PDH course reviews the above criteria in detail and provides guidance on the planning, layout and sizing of supply and return air ducts.

In air conditioning systems the duct is considered a static component of the installation through which air flows within the building, connecting all parts of the system. Ducts can be best described as arteries of the central air-conditioning system. These play an important role in keeping the whole HVAC system fit and achieving comfortable conditions throughout its life span.

Defects in a duct system can waste hundreds of dollars a year by forcing the HVAC system to run longer than necessary. Ductwork problems also make certain rooms too hot or too cold at different times of the year, while introducing dirt and bad odors into the forced-air system.

The objective of good duct design is to:

• Optimize duct size (manufacturing costs);
• Minimize duct system friction losses (operational cost);
• Reduce duct system acoustics (environmental costs); and
• Minimize air balance procedures (commissioning costs).

This 6 PDH online course is intended for mechanical and HVAC engineers, architects, building designers, contractors, energy auditors, facility managers, property and estate managers, O&M personnel, and other professionals interested in gaining a better understanding of sizing and designing duct systems.