Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/98046
Title: Geometry parameters effect for air-cooled ejector cooling systems with R134a refrigerant
Authors: Yan, Jia
Cai, Wenjian
Li, Yanzhong
Issue Date: 2012
Source: Yan, J., Cai, W., & Li, Y. (2012). Geometry parameters effect for air-cooled ejector cooling systems with R134a refrigerant. Renewable Energy, 46, 155-163.
Series/Report no.: Renewable energy
Abstract: In this paper, a CFD model calibrated by the experimental results from initial designed ejector is used to evaluate the influence of 6 key geometry parameters on the performance (entrainment ratio) of an air-cooled ejector cooling system and, consequently, to find the best design parameters. A new ejector according to the findings from the CFD simulation is then designed and used at the same air-cooled ejector system to verify the simulation results. From both simulation and testing results, we find that: 1) the optimal area ratio, the ratio of primary nozzle exist position and length of constant-area mixing section to primary nozzle diameter are lower than those of water-cooled ejector systems; 2) the optimal converging angle of constant-pressure mixing section and the ratio of primary nozzle exit position and length of constant-area mixing section to the diameter of constant-area mixing section are very close to those of water-cooled ejector systems; 3) substantial performance improvement can be achieved by using the new parameters in the ejector design.
URI: https://hdl.handle.net/10356/98046
http://hdl.handle.net/10220/12252
ISSN: 0960-1481
DOI: http://dx.doi.org/10.1016/j.renene.2012.03.031
Rights: © 2012 Elsevier Ltd.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

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