Experimental and Numerical Study on Supersonic Ejectors Working with R-1234ze(E)
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Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
EDP Sciences
Abstract
These days, much effort is being put into lowering the consumption of electric energy and involving
renewable energy sources. Many engineers and designers are trying to develop environment-friendly
technologies worldwide. It is related to incorporating appropriate devices into such technologies. The object of
this paper is to investigate these devices in connection with refrigeration systems. Ejectors can be considered
such as these devices. The primary interest of this paper is to investigate the suitability of a numerical model
for an ejector, which is incorporated into a refrigeration system. In the present paper, there have been
investigated seven different test runs of working of the ejector with a working fluid R-1234ze(E). Some of the
investigated cases seem to have a good agreement and there are no significant discrepancies between them,
however, there are also cases that do not correspond to the experimental data at all. The ejector has been
investigated in both on-design and off-design working modes. A comparison between the experimental and
numerical data (CFD) performed by Ansys Fluent software is presented and discussed for both an ideal and a
real gas model. In addition, an enhanced analytical model has been introduced for all runs of the ejector.
Description
Subject(s)
Supersonic ejector, Refrigerant R-1234ze(E), Real Gas property, CFD
Citation
ISSN
2100-014X