| Issue |
MATEC Web Conf.
Volume 168, 2018
XXI. International Scientific Conference - The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy 2018 (AEaNMiFMaE-2018)
|
|
|---|---|---|
| Article Number | 03002 | |
| Number of page(s) | 6 | |
| Section | Optimization of Flow Parameters in the Thermal and Hydraulic Machines and Systems | |
| DOI | https://doi.org/10.1051/matecconf/201816803002 | |
| Published online | 23 May 2018 | |
Reduction of the suction pressure of a liquid ring vacuum pump with a supersonic gas ejector
Slovak University of Technology, Faculty of M.E., Institute of energy machinery, Námestie slobody 17, 812 31 Bratislava, Slovakia
* Corresponding author: robert.olsiak@stuba.sk
A supersonic gas ejector in conjunction with a liquid ring vacuum pump is used for creating and maintaining vacuum in a chamber for technological purposes. In this paper the authors submit an overview about the problematics of suction pressure reduction with a supersonic gas ejector used as a pre-stage of a liquid ring vacuum pump. This system has also the function of a cavitation protection due to the higher pressure present at the suction throat of the vacuum pump. A part of this paper is devoted to the governing equations used at the definition of the flow through an ejector. The experimental studies are then carried out in or own laboratory for verification purposes.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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