Flow Resistance Characteristics of Airflow Control Dampers (RP-1157)
Abstract
This paper presents the experimental results of the performance of various types of HVAC system airflow control dampers over a wide range of types, installations, and operating conditions. Three hundred and sixty-eight tests have been conducted with the data and results discussed herein. The main fundamental performance parameter for predicting the flow rate through a partially opened damper is the pressure loss coefficient as a function of the degree of damper opening. Major variables included the type of damper, blade movement, manufacturer, installation, approach velocity, and total system pressure drop. Results should prove very useful for HVAC system designers in the proper selection of airflow modulating dampers.
Recommended Citation
R. Van Becelaere et al., "Flow Resistance Characteristics of Airflow Control Dampers (RP-1157)," HVAC and R Research, vol. 11, no. 1, pp. 119 - 131, American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), Jan 2005.
The definitive version is available at https://doi.org/10.1080/10789669.2005.10391129
Department(s)
Mechanical and Aerospace Engineering
Keywords and Phrases
HVAC System; Blade Movement; Damper; Operating Conditions; Heating and ventilation industry
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2005 American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), All rights reserved.
Publication Date
01 Jan 2005
