THERMAL SCIENCE

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Xuexi Wang

,

Feng Lin

NUMERICAL ANALYSIS ON HEAT TRANSFER AND FLOW RESISTANCE PERFORMANCES OF A HEAT EXCHANGER WITH NOVEL PERFORATED WAVY FINS

ABSTRACT
The experimental and numerical studies of thermo-hydraulic characteristics of perforated wavy fin heat exchanger and unperforated wavy fin heat exchanger were conducted. Firstly, the two kinds of fins were studied under different air in¬let velocity and constant inlet temperature. The results show that Nusselt number increases with Reynolds number and friction factor decreases with Reynolds number. Then, the performance of the two kinds of fins is numerically analyzed, and the simulation results are in good agreement with the experimental data. On this basis, the influence of different perforated fin parameters (fin height, H, fin pitch, s, wave amplitude, wa, perforation number, n, perforation diameter, d) on the thermal performance of wavy fin heat exchanger is discussed. It is indicated that friction factor and Nusselt number increase with increasing aperture, wave amplitude, fin pitch and perforation number or decreasing fin height under constant Reynolds number condition. Finally, the performance evaluation of heat exchangers with different parameters is carried out to obtain the best performance heat exchanger parameters, which can provide a reference for the design of the new wavy fin heat exchanger.
KEYWORDS
thermo-hydraulic performance, fin-plate heat exchanger, perforated, wavy fins, empirical correlations
PAPER SUBMITTED: 2021-03-09
PAPER REVISED: 2021-06-21
PAPER ACCEPTED: 2021-06-28
PUBLISHED ONLINE: 2021-09-04
DOI REFERENCE: https://doi.org/10.2298/TSCI210309255W
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 4, PAGES [3345 - 3357]
REFERENCES
  1. Xu, G., et al., Techno economic analysis and optimization of the heat recovery of utility boiler flue gas, Applied Energy, 112. (2013), dec., pp. 907 917
  2. Lee, L., J.G. Jou, Saving fuel consumption and reducing pollution emissions for industrial furnace, Fuel Processing Technology, 92. (2011), 12, pp. 2335 2340, DOI No. 10.1016/j.fuproc.2011.08.005
  3. Zhang, J., et al., Generalized predictive control applied in waste heat recovery power plants, Applied Energy, 102. (2013), FEB., pp. 320 326
  4. Jun, Y., Energy status and development trends of industrial furnace, Energy for Metallurgical Industry. (2011),
  5. Karthik, P., et al., EXPERIMENTAL AND NUMERICAL INVESTIGATION OF A LOUVERED FIN AND ELLIPTICAL TUBE COMPACT HEAT EXCHANGER, Thermal Science, 19. (2015), 2, pp. 679 692, DOI No. 10.2298/tsci120220146p
  6. Li, K., et al., Multi parameter optimization of serrated fins in PFHE based on fluid structure interaction, Applied Thermal Engineering, 176. (2020), p. 10, DOI No. 10.1016/j.applthermaleng.2020.115357
  7. Khoshvaght Aliabadi, M., et al., Role of channel shape on performance of PFHEs: Experimental assessment, International Journal of Thermal Sciences, 79. (2014), 5, pp. 183 193
  8. Karthik, P., et al., EXPERIMENTAL AND NUMERICAL INVESTIGATION OF A LOUVERED FIN AND ELLIPTICAL TUBE COMPACT HEAT EXCHANGER, Thermal Science, 19. (2015), 2, pp. 679 692, DOI No. 10.2298/tsci120220146p
  9. Khoshvaght Aliabadi, M., et al., Effects of delta winglets on performance of wavy plate fin in PFHEs Nanofluid as heat transfer media, Journal of Thermal Analysis and Calorimetry, 131. (2018), 2, pp. 1625 1640, DOI No. 10.1007/s10973 017 6527 6
  10. Wen, J., et al., Optimization investigation on configuration parameters of sine wavy fin in PFHE based on fluid structure interaction analysis, International Journal of Heat and Mass Transfer, 131. (2019), pp. 385 402, DOI No. 10.1016/j.ijheatmasstransfer.2018.11.023
  11. Haider, P., et al., A Transient Three Dimensional Model for Thermo Fluid Simulation of Cryogenic PFHEs, Applied Thermal Engineering. (2020), p. 115791
  12. Reneaume, J.M.,N. Niclout, MINLP optimization of Plate Fin Heat Exchangers, Chemical and Biochemical Engineering Quarterly, 17. (2003), 1, pp. 65 76
  13. Reneaume, J.M., et al., Optimization of Plate Fin Heat Exchangers:A Continuous Formulation, Chemical Engineering Research & Design, 78. (2000), 6, pp. 849 859
  14. Picon Nunez, M., et al., Surface selection and design of PFHEs, Applied Thermal Engineering, 19. (1999), 9, pp. 917 931, DOI No. 10.1016/s1359 4311(98)00098 2
  15. Mishra, M.,P.K. Das, Thermoeconomic design optimisation of crossflow PFHE using Genetic Algorithm, International Journal of Exergy, 6. (2009), 6, pp. 837 852
  16. Peng, H.,X. Ling, Optimal design approach for the PFHEs using neural networks cooperated with genetic algorithms, Applied Thermal Engineering, 28. (2008), 5 6, pp. 642 650
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Numerical analysis on heat transfer and flow resistance performances of a heat exchanger with novel perforated wavy fins

© 2024 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