(ρV 2)/2 = Kinetic energy per unit volume.Then admixture of working and suctioned substance with the steady pressure and velocity profile leaves the ejector. reduced velocity) as well as increase in liquid pressure was caused. At the inlet of the divergent section (expanding channel) there must be subcritical flow according to Huguenot theorem, so that compression (i.e.
In case of subcritical flow, the mixing chamber has a shape of a cylinder and in case of supercritical flow it is tapered to slow down the flow. At the outlet of the suction chamber of the nozzle the admixture of substances has the same pressure but different velocity profile, that is to be conditioned in the mixing chamber. Thanks to that there is a negative pressure formed in the suction chamber and it begins to suck-in the secondary (driven) liquid. Due to expansion in the nozzle the pressure is dropped and the velocity of the primary liquid is increased. The ejector works on the principle that the working substance enters the suction nozzle, that can be either classical tapering or Laval’s one, downstream which there can be supercritical flow. Our focus on producing reliable, simple-to-use and yet powerful piping design software makes it easy for the pipe designer, saving countless hours, days, weeks and even months of effort.
Diameter of throat ( Dk) and diffusor ( Dv) are changed. This we must find new dimensions of ejector which meets this conditions. 6 Design of new ejector and comparison with measured ejector We will find the new ejector which has greater mass flow rate in the suction branch (mass flow of air) than the original ejector for pressure 90-100 kPa.2.3.1.2 Ejector flow regimes and their criteria - 47 2.3.1.3 Computational procedure - 53 2.3.2 Constant-area ejector computer program (CAE) 56 2.3.3 Representative results 58 2.4 STAGED CONSTANT-AREA EJECTOR SYSTEM 65 2.4.1 System configuration 65 3.0 EXPERIMENTAL INVESTIGATION 71 3.1 COLD-FLOW, AIR-TO-AIR, EJECTOR EXPERIMENTS 71.
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