LABORATORY EVALUATION OF THE DELTA Q TEST FOR DUCT LEAKAGE
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.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- DOE/SC (US)
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 811286
- Report Number(s):
- BNL-71220-2003-IR; R&D Project: EST112NEDA; EC0904000; TRN: US200312%%23
- Resource Relation:
- Other Information: PBD: 1 May 2003
- Country of Publication:
- United States
- Language:
- English
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