Keywords

Abstract

Using a residential-size duct system in a controlled laboratory setting, the repeatability and accuracy of the Delta Q test for air leakage in residential duct systems have been measured. More than 100 Delta Q tests were performed. These were compared with results using fan pressurization and also with results of a procedure (Delta Q Plus) that uses leakage hole-size information to select the leakage pressures to be used in the Delta Q algorithm. The average error in supply or return leakage for the fan-pressurization test was 6.4% of system fan flow. For the Delta Q test it was 3.4% of fan flow, while for Delta Q Plus it was 1.9% of fan flow.

Paper

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Panels of the 2002 ACEEE Summer Study on Energy Efficiency in Buildings

Panel 1. Residential Buildings: Technologies, Design, Performance Analysis, and Building Industry Trends

Panel 2. Residential Buildings: Program Design and Implementation

Panel 3. Commercial Buildings: Technologies, Design, Performance Analysis, and Building Industry Trends

Panel 4. Commercial Buildings: Program Design and Implementation

Panel 5. Utility Issues

Panel 6. Market Transformation

Panel 7. Information and Electronic Technologies: Promises and Pitfalls

Panel 8. Human and Social Dimensions of Energy Use: Understanding Markets and Demand

Panel 9. Energy and Environmental Policy

Panel 10. Program Measurement and Evaluation