The Air Distribution Institute has announced a research project on the airflow efficiencies of popular HVAC duct products.

The project, "Air Flow Efficiency in Heating, Ventilation and Air Conditioning Ducts," will also provide a resource for designing energy-efficient duct systems, according to the ADI.

The institute reports that preliminary information suggests that there may be inaccuracies in existing airflow calculations when using other alternatives to sheet metal ductwork, pipe and fittings.

The two-year study is being conducted by the Energy Systems Laboratory, a part of the Texas Engineering Experimental Station at Texas A&M University. Members of ADI are also funding the study with support from the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Texas Utilities and Lennox Industries. The ADI is also collaborating with ASHRAE and plans to coordinate the results of the research project with them.