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. RE: Steam ejector design rmw (Mechanical) 9 Dec 08 18:54 Yeah, call your local Graham representative or go to and ask for a copy of their software 'vacworks.'.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.

Results compare favourably with actual ejector installations, see graph to the left.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. The model has been tested extensively and is easy to use. The ratio of entrained gas flow rate to motive gas flow rate (entrainment mass ratio) Motive gas flow rate, pressure, temperature and properties (molecular weight, Cp/Cv)Įntrained gas properties (molecular weight, Cp/Cv), pressure and temperature Thermodynamic models, Continuity equationsĮfficiencies of each step within the ejector based on correlations T he ejector computer model includes the following: 'I was able to prepare a very successful solution!ĮZEJECTOR is a computer model for gas ejector and steam ejector design that has been developed based on a unique approach using fundamental principles.

'According to program steam flow and sizing seems perfect!'

'Your software is very well designed and easy to use with plenty of great info.' 'Before including a compressor or pump in your process design, would you fill in your request, send it to a supplier and then cool you heels waiting for a reply? So don't do this for an ejector.'Īvoid the time lost, develop your own solution

Ejector design calculation software