The Efficiency Coefficient of Separators with Jalousie Orifices

The Efficiency Coefficient of Separators with Jalousie Orifices 

As analysis of equations of motion for a drop of radius R shows, the jalousie transfer function depends on the Stokes number S = 2R piU/9Lftf) that describes drop inertia and on the geometrical parameters ao = ho/L, ipo,(Pi. (p, where n is the number of corrugations. Having determined drop trajectories, it is possible to find the transfer function of the jalousie section 

Parameters A describing the deposition rate of drops of radius R at jalousie walls are equal to 

The minimum Stokes number and the appropriate minimum radii of drops for each corrugation are determined from the condition Ai = 1. For the minimum radius of drops to decrease as the number of corrugations increases, it is necessary that the angle p decreases with the growth of i. Otherwise, drops will be deposited only at the first two corrugations. At pg i the smallest value of minimum drop radius will achieved in the last corrugation. If the inequality do 0.4 (cot po + cot g n-i) we get the following approximated 

8 10 m = 18 gm. To capture drops of radius 10 g at the same values of parameters, we must take n = 35. A reduction of Rm may be achieved by increasing the velocity U or by changing the geometrical parameters. In particular, a narrower cross-section and a smaller tilt of the wall promotes a more efficient capture of drops. As an example of CE calculation for a separator with jalousie section, consider a vertical separator with the following parameter values diameter of the separator D = 1.6 m diameter of the supply pipeline d = 0.3 m pressure p = 13 MPa temperature T = 293 °K hquid and gas densities ppi = 615 kg/m. Pc = 143 kg/m gas viscosity pc = 1-73 10 Pa s. The resultant dependence of the separator CE on the gas flow rate Q under normal conditions is shown on 

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