Submission
Semi-Empirical Model Of Two-Phase Liquid Gas Ejector For Power Engineering Applications
DOI: 10.18462/iir.compr.2021.0425
Session: Ejectors and centrifugal compressors 1
Accept state: Abstract rejected
Authors
| Name | Organization | |
|---|---|---|
| Dariusz Butrymowicz, Prof. | Bialystok University of Technology, Faculty of Mechanical Engineering, Bialystok, Poland | |
| Kamil Smierciew, PhD, DSc | Bialystok University of Technology, Faculty of Mechanical Engineering, Bialystok, Poland | |
| Jerzy Gagan, PhD | Bialystok University of Technology, Faculty of Mechanical Engineering, Bialystok, Poland |
Abstract
Ejectors are commonly applied in many important branches of industry like: conventional and nuclear power engineering, refrigeration, chemical processing and food processing industries, vacuum technologies and many others. The scope of application of these devices is still growing. Among the main motivation of contemporary applications of ejectors are: simplicity, compactness, high reliability, and low cost.
Special attention is given to two-phase ejectors because of wide scope of their possible application. The main motivation of research is understanding of complicated physical aspects of operation of these devices and growing demands for improvement of the their efficiency. So far, one of the most common application of two-phase ejectors is removing of inert gases from the main condensers and low-pressure feedwater heaters in steam power plants. However, the potential for using a liquid gas ejector is not fully utilized.
The theoretical semi-empirical model of two-phase ejector based on momentum equations for the mixing chamber and diffuser has been presented. The closure equations for momentum loss coefficients for the mixing chamber and diffuser have been proposed basing on the own experimental data. These equations take into account the geometry of the ejector
Keywords
two-phase,
liquid-gas,
ejector,
model,
correlations