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| Content Provider | Springer Nature Link |
|---|---|
| Author | Yadav, Ajay Kumar Ram Gopal, M. Bhattacharyya, Souvik |
| Copyright Year | 2012 |
| Abstract | Steady state simulation of a 3D model of supercritical CO$_{2}$ based natural circulation loop with end heat exchangers has been carried out employing the commercial CFD (computational fluid dynamics) code, FLUENT. The simulation considers phenomena such as viscous dissipation in fluid, axial conduction in fluid as well as in solid wall. Study has been carried out at a constant CO$_{2}$ operating pressure of 80 bar. Results are obtained for various inlet temperatures of water in the hot heat exchanger, within the range of 323–353 K, for a fixed inlet temperature of cooling water in the cold heat exchanger (305 K). Results show that heat transfer rate increases with increase in HHX water inlet temperature whereas mass flow rate of loop fluid decreases. Due to the presence of bends and strong buoyancy effects, fluid parameters such as local velocity and temperature vary in all three dimensions which justifies the use of 3D model for this study. Results also show that even for a small temperature difference of 18 K, Reynolds number reaches a high value of the order of 10$^{5}$. Validation of simulation results against experimental results reported in the literature with respect to modified Grashof number (Gr $_{ m }$) and Reynolds number (Re) exhibit good agreement. |
| Starting Page | 119 |
| Ending Page | 126 |
| Page Count | 8 |
| File Format | |
| ISSN | 09750770 |
| Journal | International Journal of Advances in Engineering Sciences and Applied Mathematics |
| Volume Number | 4 |
| Issue Number | 3 |
| e-ISSN | 09755616 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2012-06-05 |
| Publisher Place | India |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Heat transfer Supercritical carbon dioxide Natural circulation loop CFD Turbulent flow ApplicationMathematics/Computational Methods of Engineering Engineering |
| Content Type | Text |
| Resource Type | Article |
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