THERMAL SCIENCE

International Scientific Journal

Zuogang Guo

,

Tong Liu

,

Min Xu

,

Yifan Zhou

,

Xinyue Hao

,

Guangming Chen

EXPERIMENTAL STUDY OF THE INFLUENCE OF NOZZLE AND MIXING CHAMBER DIMENSIONS ON THE PERFORMANCE OF THE EJECTOR

ABSTRACT
The present paper investigates the effect of the primary nozzle and mixing chamber dimensions on the performance of a rectangular ejector using air as the working fluid. The experimental set-up is introduced first and the operating conditions and geometrical parameters of the ejector is listed. Five interchangeable nozzles with varied throat diameters and eight mixing chambers with different cross-sectional sizes have been designed in this research. The performance of the ejector equipped with these nozzles and mixing chambers is then experimentally compared. In addition, the influence of different operating conditions on the performance of the ejector equipped with different nozzles and mixing chambers is experimentally examined, and the performance curves of the ejector working in the subcritical and off-design mode are analyzed.
KEYWORDS
ejector, experiment, Dimensions, performance
PAPER SUBMITTED: 2024-02-13
PAPER REVISED: 2024-05-25
PAPER ACCEPTED: 2024-06-06
PUBLISHED ONLINE: 2024-08-18
DOI REFERENCE: https://doi.org/10.2298/TSCI240213163G
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2025, VOLUME 29, ISSUE Issue 1, PAGES [105 - 116]
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Experimental study of the influence of nozzle and mixing chamber dimensions on the performance of the ejector

2025 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence