Transcription of Duct Leakage Testing - NEBB
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Duct Leakage Testing - NEBB
duct Leakage Testing Ken Helfers, TSI Inc. 2011, TSI Incorporated Agenda Need for duct Leakage Testing duct Leakage Testing standards and regulations Performing duct Leakage Testing 2011, TSI Incorporated Why Test Ducts for L k Leakage ? ? Conserve energy 10-30% of heated/cooled air lost through ductwork Leaky supply ducts don't delivery air where needed Leaky return ducts add load 2011, TSI Incorporated Why Test Ducts for L k Leakage ? ? Indoor Air Quality Leaky returns can pull in air from uncontrolled spaces, p causingg Humidity problems Contaminants 2011, TSI Incorporated System Leakage IAQ. IAQ, Comfort, Comfort Energy issues caused by Leakage from HVAC System System Leakage = duct Leakage +. Equipment Leakage + Accessory y Leakage g Scope of presentation = duct Leakage Does not include: Leakage through Equipment (See ASHRAE 193).
EU Standards SMACNA Standard Report Requirements Specified in Standards •Measurements •Duct surface area Tt Defers to project specifications. Suggests: • Measurements •Test pressure Dt f •Leakage rate •Pressurizing time •Calculated • Duct surface area • Test pressure • Leakage rate • Calculated •Leakage factor •Air ...
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