Numerical Investigation of an Ejector with Transcritical CO2 as Working Fluid
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1Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing, China
The transcritical CO2 ejector is modelled and analyzed based on the Computational Fluid Dynamics (CFD) technique. The real gas properties of CO2 such as density, specific heat, enthalpy, entropy, viscosity and sound speed are considered in the study. The ejector performance is investigated by varying the two key geometries: nozzle exit position (NXP) and diameter ratio (αD). The flow characteristic and the shock wave pattern are analyzed by the detailed flow field in the ejector.
Keywords. CO2 refrigeration cycle; ejector; real gas; CFD; modelling
How to cite this article
Zhu, Y. and Jiang, P. (2010). 'Numerical Investigation of an Ejector with Transcritical CO2 as Working Fluid'. SET Proceedings, 9, pp. 1-7. https://doi.org/10.65582/set.2010.035
