Energy Savings from Residential Zoned Air Distribution Systems
Dave Bohac, P.E.
Why This Research Is Needed
Single-zone constant air volume systems are standard in most Minnesota homes. They can lead to temperature variations and increased energy use from over-heating and over-cooling. These problems often occur in basements, on second floors, and on sunny sides of the house. Multizone variable air volume (VAV) systems offer a solution.
This white paper will explore the potential to apply newly available zoning equipment for new and existing air distribution systems. Anecdotal evidence has shown that poorly designed and implemented systems can lead to low airflow and cycling problems — the assessment will include system requirements to avoid these problems. We will use EnergyPlus models of standard Minnesota home configurations to estimate zoned system energy savings.
This project is supported by a grant from the Minnesota Department of Commerce, Division of Energy Resources through the Conservation Applied Research and Development (CARD) program, which is funded by Minnesota ratepayers.