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Thermophysics and Aeromechanics

2012 year, number 2

Calculation of critical regimes in the ejectors with converging chamber

A.V. Sobolev
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
sobolev@itam.nsc.ru
Keywords: gas- and vapor-driven ejectors, real gases, condensation, critical regimes, calculation characteristics
Pages: 267-277

Abstract

The calculation procedure of the ejector with water-vapor condensation in primary nozzle and in converging chamber is presented. Calculations are performed in a wide range of temperatures of primary and secondary gases. The differences are identified in the properties of gas- and vapor-driven ejectors. Limiting mass rates ratios of gas ejectors are reached by primary temperature increase, but the highest performance of vapor-driven ejectors is realized with the use of saturated vapor.