Submission
Efficiency of a Vacuum Cooling System with Liquid-Vapor Ejector for Biodiesel Production
DOI: 10.18462/iir.compr.2021.0365
Session: Ejectors and centrifugal compressors 1
Accept state: Submission accepted
Authors
| Name | Organization | |
|---|---|---|
| Serhii Sharapov, PhD | Sumy State University | |
| Maxim Prokopov, PhD | Sumy State University | |
| Dariusz Butrymowicz, Dr hab. | Bialystok University of Technology | |
| Viktor Kozin, PhD | Sumy State University |
Abstract
This article deals with the issue of increasing an efficiency of the vacuum cooling systems during biodiesel production by using a new type of vacuum units, such as liquid-vapor ejector, which working process is based on the principle of jet thermal compression. The geometry of the flowing part has a significant impact on the efficiency of the mixing process in primary and secondary flows and the unit as a whole. The authors consider structural variations of liquid-vapor ejectors – with cylindrical and conical mixing chambers, followed by a cylindrical section, with a diffuser and without it. Numerical and experimental studies of liquid-vapor ejector with a various geometry of the flow part were put into practice and made it possible to obtain the dependence of the performance of the liquid-vapor ejector and the units on its basis, that allows to determine the optimal operating conditions of the system on the basis of this ejector. Analysis of the LVE exergetic efficiency and the unit as a whole made it possible to conclude that it is appropriate to use this type of ejector in the vacuum cooling systems of biodiesel production.
Keywords
Vacuum cooling system
Liquid-vapor ejector
Biodiesel production
CFD simulation
Exergetic efficiency