Impinging jets

FIG. 14-87 Charactersitic spray nozzles, a) Whirl-chamber hollow cone, (h ) Solid cone, (c) Oval-orifice fan. (d) Deflector jet. (e) Impinging jet. (/) Bypass, (g) Poppet, (h) Two-flnid. ( ) Vaned rotating wheel. [Pg.1411]

Figure 10-4. Flame stabilization created by impinging jets and general airflow pattern. (C Rolls-Royce Limited.)...

Meshalin, V. S. 1974. About turbulent stress in impinging jets. In Mechanics of (jases and Fluids. Moscow. [Pg.512]

Mahajan, A.J. and Kirwan, D.J., 1996. Micromixing effects in a two-impinging-jets precipitator. American Institution of Chemical Engineers Journal, 42, 1801-1814. [Pg.314]

Suitable equations have been given for pipelines in Fig. 2.4 and these may be compared with the equation for impinging jets and nozzles or orifices. A more detailed review of this and other hydrodynamic relationships are given by B. Poulson. ... [Pg.317]

D. Durox, T. Schuller, and S. Gandel. Self-sustained oscillations of a premixed impinging jet flame on a plate. Proc. Combust. Inst., 29 69-75, 2002. [Pg.93]

Wilson, A. D., Groffman, D. M., Powis, D. R. Scott, R. P. (1986a). An evaluation of the significance of the impinging jet method for measuring the acid erosion of dental cements. Biomaterials, 7, 55-60. [Pg.195]

The laboratory impinging jet test for evaluating the acid erosion of dental cements is described in Chapter 10. Using this method with lactic acid-lactate solutions, Wilson et al. (1986b) found, for one cement, that the erosion rate was virtually zero at pH = 5 0, 0-38 % at pH = 4-0 and 5 7 % at pH = 2-7. For a range of cements Wilson et al. (1986a) found erosion rates varying from 3 0 to 5-7 % in lactic add solutions of pH = 2-1. The... [Pg.216]

Osborne et al., 1978) and the laboratory impinging jet method (Beech Bandyopadhyay, 1983 Wilson et a/., 1986a). [Pg.265]

In vitro studies by Wilson et al. (1986) using the impinging jet method show the EBA cement to be the least resistant of all the cement types to erosion in neutral solution. Clinical studies confirm this result and show that there is greater dissolution in the mouth than for other dental cements (Mitchem Gronas, 1978 Osborne et al., 1978 Andrews and Hembree, 1976 Shilling, 1977). Despite this, a clinical survey by Silvey and Myers... [Pg.341]

Reactor 23 [R 23] [Impinging-jet Micro Mixer Tube] - Reaction System... [Pg.403]

The impinging-jet micro mixers are constructed as a cylindrical block comprising two feed tubes which become smaller towards the outlet [48]. Accordingly, the main characteristics of these mixers are the diameter of the outlet bore, the interspaces between the bores and the angle defined by the orientation of bores (relative to the normal). For one experimental study [48], nine impinging jet micro mixers were made which differ in these specifications. [Pg.404]

Reactor type Impinging-jet micro mixer-tube reactor Bore angles 45° 60° 90°... [Pg.404]

Impinging jets, which consist of a cylindrical chamber with two spray nozzles that enter from opposite sides of the chamber, provide small particles with narrow size distribution. The solution oi the material is fed through one nozzle and the crystallization agent through the second nozzle. Finasteride has been cry.stallized in this way a solution of the material in acetic acid plus some water was fed from one nozzle and water from the other the average crystal size was 10 to 15 pm. [Pg.423]

Bergehn M, Herrero E, Fehu JM, Wasberg M, 1999. Oxidation of CO adlayers on Pt(111) at low potentials an impinging jet study in H2SO4 eIectrol3fte with mathematical modehng of the current transients. J Electroanal Chem 467 74-84. [Pg.199]

Considering the wall-jet or impinging-jet type of detectors, there has been some confusion in the literature about the names of the different types149 Fig. 5.24 shows the difference between the free and the confined wall-jet detectors, where the flow jet is appreciably smaller than in the impinging-jet types. [Pg.364]

Our Chemical Engineering colleagues had developed an elegant impinging jet crystallization which provided excellent particle size control for the finasteride process [13]. In the final pilot plant campaign just before the factory start-up, the crystallization suddenly started producing a different particle size distribution and lower recovery. The problem was traced to a new finasteride solvate which reduced the solubility in the crystallization solvent system. Fortunately, only relatively... [Pg.94]

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