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http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/11827| Title: | Effect of Motive Nozzle Exit Position in a R-744 Two-Phase Ejector |
| Authors: | Dasgupta, Mani Sankar Yadav, Mani Sankar |
| Keywords: | Mechanical Engineering Ejector flow Supercritical R-744 flow Two-phase ejectors NIST Refprop Ansys CFX |
| Issue Date: | Jan-2022 |
| Publisher: | Springer |
| Abstract: | Ejector expansion transcritical refrigeration systems, in general, have an advantage over conventional transcritical refrigeration systems. In this paper, a CFD-based investigation of transonic flow phenomenon for R-744 inside a three-dimensional model of an ejector is presented. Real-gas thermophysical properties of R-744 such as the density, dynamic viscosity, and thermal conductivity are defined as a function of pressure and temperature based on NIST Refprop. Three different motive nozzle exit positions are investigated. A motive nozzle tip position that is near to the mixing section is found to have higher pressure and lower Mach number due to better mixing. |
| URI: | https://link.springer.com/chapter/10.1007/978-981-16-6738-1_20 http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/11827 |
| Appears in Collections: | Department of Mechanical engineering |
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