Ergun Correlation
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ΔP L = 150 μVs D p 2 φ s 2 ( 1 − ε) 2 ε3 + 1.75 ρV s 2 Dpφ s ( 1 − ε) ε3 (6) In this equation the fluid properties are density (ρ) and viscosity (μ) and the pac are the sphericity (φ) and the equivalent diameter (D p ) !he flo" rate of the fluid is in terms of velocity ($)% and to account for the density of the packing material% the &rgun &qu void fraction (') In present study the% it is seen that the pressure drop through the ed are m on liquid flo" rate o"ever the measured pressure drop predicted y &rgun equation sho"n in equation (6) 0 0.020.040.06 0 0.5 1 1.5 2 2.5 3 Ergun equation Exeperiment Fluid Flow rate, m/s Pressure Drop, Kpa/m *ig effect of liquid flo" rate on pressure drop
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Transcript of Ergun Correlation
= (6)
In this equation the fluid properties are density () and viscosity () and the packing properties are the sphericity () and the equivalent diameter (Dp). The flow rate of the fluid is in terms of 3 velocity (V), and to account for the density of the packing material, the Ergun Equation has the void fraction ().
In present study the, it is seen that the pressure drop through the bed are mostly effected on liquid flow rate. However the measured pressure drop predicted by Ergun equation which are shown in equation (6).
Fig. effect of liquid flow rate on pressure drop
