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| Content Provider | Springer Nature Link |
|---|---|
| Author | Lakzian, Esmail Ghorbanzadeh, Sepehr |
| Copyright Year | 2018 |
| Abstract | Air ejectors are, practically, applicable devices used to remove air following a membrane integrity test (MIT). In the present work, investigations of the influence of geometrical parameters on the air ejector performance are performed numerically. Simulations have been performed by solving the steady compressible two-dimensional Reynolds-averaged Navier–Stokes together with realizable k-ε turbulence model equations. A comparison of the computed results with the published experimental data exhibits agreement in terms of entrainment ratio. Increasing amount of the air that should be removed (secondary flow) and reducing energy consumption (primary flow) are considered in this work. To achieve these issues, the effects of geometrical parameters include mixing tube diameter, length of mixing tube, and primary nozzle diameter as well as operation condition which consists of primary flow pressure on the air ejector performance which are all studied. The results show that these changes could improve the entrainment ratio; it means that the secondary flow is increased or the primary flow is decreased. The optimal range of entrainment ratio for specific values of the primary nozzle diameter declares that the air ejector operates at its highest performance. |
| Starting Page | 1 |
| Ending Page | 13 |
| Page Count | 13 |
| File Format | |
| ISSN | 16785878 |
| Journal | Journal of the Brazilian Society of Mechanical Sciences and Engineering |
| Volume Number | 40 |
| Issue Number | 2 |
| e-ISSN | 18063691 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2018-01-17 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Membrane integrity test Mixing tube diameter Air ejector nozzle diameter Mechanical Engineering Entrainment ratio |
| Content Type | Text |
| Resource Type | Article |
| Subject | Applied Mathematics Industrial and Manufacturing Engineering Automotive Engineering Mechanical Engineering Aerospace Engineering |
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