Pressure drop and acoustical application guidelines for HVAC plenums

Peterman K., Mouratidis E.
noise pollution, prediction, pressure drop
Year:
2004
Bibliographic info:
ASHRAE 2004 Annual Meeting, Nashville June 2004, pp 1-9, 11 Fig., 4 Ref.

New equations derived from the recent ASHRAE-sponsored research project RP-1026 will enable HVAC system designers to better predict aero-acoustic performance of sheet metal plenums. This paper deals primarily with the aerodynamic performance of flow-through plenums and presents new
total pressure drop equations for some of the most common plenum configurations. Comparisons are made between these equations, computational fluid dynamics (CFD) analyses, and hand-calculation methods. The practical uses of plenums are discussed along with prescriptive rules of thumb to help
designers implement plenums effectively into their systems for aerodynamic and acoustical benefits.

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