International Scientific Journal


Sell and tube heat exchanger (STHX) is an implement that has tremendous applications in numerous industrial processes and research areas. In this study, the commercial software ANSYS is used for 3-D CFD to compare the thermo-hydraulic performance of STHX with recently developed tri-angular (TRI) baffles, and tri-flower (TF) baffles with conventional segmental (SG) baffles at different flow rates. Simulations have been performed to analyze the heat transfer coefficient, pressure drop, and overall thermo-hydraulic performance among the recently developed TRI-STHX, TF-STHX and conventional SG-STHX. The thermo-hydraulic performance of the numerical model of SG-STHX shows the promising results while validating it with the experimental results, Esso and Kern methods. Then the same study is carried out for comparing the two novel baffles with segmental baffle. The results depict that, novel baffles are much appreciable in increasing heat transfer coefficient. The TF-STHX offers a greater heat transfer coefficient than all others but also offers a higher pressure drop at the same flow rate. Computing the comprehensive performance, hs⁄Δp, the TRI-STHX offers a prominent increment in thermo-hydraulic performance compared to others. Moreover by inserting twist¬ed tapes at the tube side, there is noticeable increase in heat transfer coefficient which tends to increase the thermo-hydraulic performance of STHX. By comparing the flow patterns of TRI-STHX and SG-STHX, the novel TRI-STHX shows the reduction in shell-side induced vibrations and hence helped to increase the overall efficiency of the STHX.
PAPER REVISED: 2022-04-15
PAPER ACCEPTED: 2022-04-19
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 1, PAGES [843 - 853]
  1. Incropera, F. P., et al., Principles of Heat and Mass Transfer, 8th ed., Global Edition, John Wiley and Sons Inc., New York, USA, 2017
  2. Abeykoon, C., Compact Heat Exchangers - Design and Optimization with CFD, International Journal of Heat and Mass Transfer, 146 (2020), Jan., pp. 118-766
  3. Wang, W., et al., Enhanced Heat Transfer Performance for Multi-Tube Heat Exchangers with Various Tube Arrangements, International Journal of Heat and Mass Transfer, 168 (2021), 120905
  4. Bozorgan, N., et al., Design and Thermal-Hydraulic Optimization of a Shell and Tube Heat Exchanger using Bees Algorithm, Thermal Science, 26 (2021), 1B, pp. 693-703
  5. Perumal, S., et al., Effects of Nanofluids on Heat Transfer Characteristics in Shell and Tube Heat Ex­changer, Thermal Sciences, 26 (2021), 2A, pp. 835-841
  6. Purandare, P. S., et al., Experimental Investigation on Heat Transfer and Pressure Drop of Conical Coil Heat Exchanger, Thermal Science, 20 (2016), 6, pp. 2087-2099
  7. Abeykoon, C., Improving the Performance of Shell-and-Tube Heat Exchangers by the Addition of Swirl, International Journal of Process Systems Engineering, 2 (2014), 3, pp. 221-245
  8. Garewal, S. S., et al., Study the Effect of Single Segmental Baffle Cut on Overall Heat Transfer Coeffi­cient in Shell and Tube Heat Exchanger, GRD Journal for Engineering, 3 (2018), 6, pp. 1-7
  9. El-Said, E. M. S., Al-Sood, M. M. A., Shell and Tube Heat Exchanger with New Segmental Baffles Con­figurations: A Comparative Experimental Investigation, Applied Thermal Engineering, 150 (2019), Mar., pp. 803-810
  10. Bhattacharyya, S., et al., Thermodynamics and Heat Transfer Study of a Circular Tube Embedded with Novel Perforated Angular-Cut Alternate Segmental Baffles, Journal of Thermal Analysis and Calorime­try, 145 (2021), Apr., pp. 1445-1465
  11. Naqvi, S. M. A., et al., Numerical Analysis on Performances of Shell Side in Segmental Baffles, Helical Baffles and Novel Clamping Anti-Vibration Baffles with Square Twisted Tubes Shell and Tube Heat Ex­changers, Energy Procedia, 158 (2019), Feb., pp. 5770-5775
  12. Gugulothu, R., Sanke, N., Effect of Helical Baffles and Water-Based Al2O3, Cuo, and Sio2 Nanoparticles in the Enhancement of Thermal Performance for Shell and Tube Heat Exchanger, Heat Transfer, 51 (2022), 5, pp. 3768-3793
  13. Yang, J. F., et al., Investigation on Combined Multiple Shell-Pass Shell and Tube Heat Exchanger with Continuous Helical Baffles, Energy, 115 (2016), Nov., pp. 1572-1579
  14. Naqvi, S. M. A., Wang, Q., Numerical Comparison of Thermohydraulic Performance and Fluid-Induced Vibrations for STHX with Segmental, Helical, and Novel Clamping Antivibration Baffles, Energies, 12 (2019), 3, 540
  15. Naqvi, S. M. A., Wang, Q., Performance Enhancement of Shell-Tube Heat Exchanger by Clamping Anti-Vi­bration Baffles with Porous Media Involvement, Heat Transfer Engineering, 42 (2021), 18, pp. 1523-1538
  16. Liaw, K. L., et al., Turbulent Convective Heat Transfer in Helical Tube with Twisted Tape Insert, Interna­tional Journal of Heat and Mass Transfer, 169 (2021), 120918
  17. Munir, U., et al., Oscillaory Heat Transfer Correlation for Annular Mini Channel Stirling Heater, Case Studies in Thermal Engineering, 21 (2020), 100664
  18. ***, Fluent Inc. FLUENT User's Guide, Resource Park, Lebanon, 2006
  19. Thulukkanam, K., Heat Exchanger Design Handbook, 2nd ed., Taylor and Francis, New York, USA, 2013

© 2023 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence