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Static Pressure Loss of Duct Fitting 2
- Thread starter Zimmy242
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The attached is a study of converging fittings that puts coefficients into equation form which may be what you are looking for. This is referred to in the also attached McGill Duct design Guide page A-66.
"The negative loss coefficients of certain fittings are derived from experimental data. Note that two separate test programs produced consistent data: "An Experimental Study of the Pressure Losses in Converging Flow Fittings Used in Exhaust Systems," C.F. Sepsey and D.B. Pies, The Ohio State Research Foundation, 1972; and ASHRAE Research Project 551-TRP, "Laboratory Study to Determine Flow Resistance of HVAC Duct Fittings."
"The negative loss coefficients of certain fittings are derived from experimental data. Note that two separate test programs produced consistent data: "An Experimental Study of the Pressure Losses in Converging Flow Fittings Used in Exhaust Systems," C.F. Sepsey and D.B. Pies, The Ohio State Research Foundation, 1972; and ASHRAE Research Project 551-TRP, "Laboratory Study to Determine Flow Resistance of HVAC Duct Fittings."
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