Work "the optimum jet diameter (Dop)", is strongly related to the nozzle optimum distance (Lop). It is believed that the jet diameter at the point where it meets the diffuser wall, which is called in this the characteristic net and the constant density lines within the flow of the steam jet leaving the AĬomputer programme was also written using the Method of Characteristics to find the shape i.e.
These two different theoretical techniques and the comparison between the results for the exit Mach number found to be 95% in agreement over the pressure range of the experimental work. Two computer programmes were written on the basis of Number for the nozzle was found by using the one-dimensional gasĭynamic equations together with the first law of thermodynamics.Īlso a two-dimensional approach using the Method of Characteristics was used to find the exit Mach number and the characteristic net of the flow from the throat to the outlet of the nozzle. The second part is a theoretical approach. Optimum distance (Lop)", and the geometrical and operating parameters of the nozzle and the diffuser were investigated and forms the object of this part of the thesis. The relation between this distance, which is called in this thesis "the nozzle
The steam nozzle outlet and the diffuser throat section. The vacuum created by the ejector is strongly affected by the distance between The first part is an experimental investigation. This thesis reports a two part investigation of single- and two-stage ejector systems in which the primary fluid is steam and the secondary fluid is air.
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