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A platform for research: civil engineering, architecture and urbanism
Laboratory testing of converging flow flat oval tees and laterals to determine loss coefficients (RP-1488)
Pressure loss coefficients were measured for several converging flow straight body flat oval tees and laterals in accordance with ASHRAE Standard 120-2008 (ASHRAE 2008). The aspect ratio for both main and branch ducts was varied from 2.2 to 3.8 using combinations of three main duct sizes and four branch duct sizes. A logarithmic model was used to correlate branch and main loss coefficients as functions of branch-to-common and main-to-common flow rate ratio, respectively, and pertinent geometry characteristics of the fitting. Uncertainty analysis was performed on the measured experimental data. Coefficient of determination values ranged from 0.60 to 0.82.
Laboratory testing of converging flow flat oval tees and laterals to determine loss coefficients (RP-1488)
Pressure loss coefficients were measured for several converging flow straight body flat oval tees and laterals in accordance with ASHRAE Standard 120-2008 (ASHRAE 2008). The aspect ratio for both main and branch ducts was varied from 2.2 to 3.8 using combinations of three main duct sizes and four branch duct sizes. A logarithmic model was used to correlate branch and main loss coefficients as functions of branch-to-common and main-to-common flow rate ratio, respectively, and pertinent geometry characteristics of the fitting. Uncertainty analysis was performed on the measured experimental data. Coefficient of determination values ranged from 0.60 to 0.82.
Laboratory testing of converging flow flat oval tees and laterals to determine loss coefficients (RP-1488)
Kulkarni, D. (author) / Cui, J. (author) / Idem, S. (author)
HVAC&R Research ; 17 ; 710-725
2011-10-01
16 pages
Article (Journal)
Electronic Resource
English
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