Determining the Correct Damper Design

Van Becelaere, Robert
October 2006
Heating/Piping/Air Conditioning Engineering;Oct2006 Supplement, Vol. 78, p16
The article offers ways on determining the correct damper that can be used in designing air-handling units (AHU). Measuring the rating at the fresh air damper is the most accurate method of determining outside airflow into a system. Air foil and Triple V design are the two basic types of dampers used in AHU which can both influence leakage and pressure drop. Controls must be used in order to assure uniform air flow in opposed-blade and parallel-blade applications.


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