THERMAL SCIENCE

International Scientific Journal

Shifeng Deng

,

Huaishuang Shao

,

Jian Jiao

,

Teng Qu

,

Qinxin Zhao

HEAT TRANSFER ENHANCEMENT IN INSERTED EXTRUDED ALUMINUM FINNED TUBES

ABSTRACT
Heat transfer enhancement in tubes is widely applied in various industrial processes. The traditional method of heat transfer enhancement is to insert radial fins to expand the internal surface area and destroy the flow. However, there is a flue gas corridor in the central area of the tube, and the cost of expanding the inner fin is high. A centrally symmetrical bent extruded aluminum fin was developed to enhance the heat transfer in the tube. An experimental platform was constructed to test the performance of inner finned tubes and explore the process of combining extruded aluminum inner fin with steel tube. The bent extruded aluminum fins with two side fins extending to the central axis possesses the best comprehensive heat transfer performance. The heat transfer correlation of the optimal fin structure is Nu = 0.864Re0.4275Pry0.3818(Pry/Prw)–0.1004. With low cost and strong heat transfer performance, the bent extruded aluminum inner fin tube will gain wide applications in the engineering field.
KEYWORDS
extruded aluminum inner fins, centrosymmetric, bent fins, steel- aluminum composite
PAPER SUBMITTED: 2022-07-08
PAPER REVISED: 2022-11-13
PAPER ACCEPTED: 2022-11-14
PUBLISHED ONLINE: 2023-01-07
DOI REFERENCE: https://doi.org/10.2298/TSCI220708200D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 4, PAGES [2763 - 2774]
REFERENCES
  1. Jin, Z.-j., et al., Effects of pitch and corrugation depth on heat transfer characteristics in six-start spirally corrugated tube, International Journal of Heat and Mass Transfer, 108. (2017), pp. 1011-1025, DOI No. 10.1016/j.ijheatmasstransfer.2016.12.091
  2. Kareem, Z.S., et al., Heat transfer enhancement in two-start spirally corrugated tube, Alexandria Engineering Journal, 54. (2015), 3, pp. 415-422, DOI No. 10.1016/j.aej.2015.04.001
  3. Kareem, Z.S., et al., Heat transfer enhancement in three-start spirally corrugated tube: Experimental and numerical study, Chemical Engineering Science, 134. (2015), pp. 746-757, DOI No. 10.1016/j.ces.2015.06.009
  4. Zachár, A., Analysis of coiled-tube heat exchangers to improve heat transfer rate with spirally corrugated wall, International Journal of Heat and Mass Transfer, 53. (2010), 19-20, pp. 3928-3939, DOI No. 10.1016/j.ijheatmasstransfer.2010.05.011
  5. Jayakumar, J.S., et al., Experimental and CFD estimation of heat transfer in helically coiled heat exchangers, Chemical Engineering Research and Design, 86. (2008), 3, pp. 221-232, DOI No. 10.1016/j.cherd.2007.10.021
  6. Aroonrat, K., et al., Heat transfer and single-phase flow in internally grooved tubes, International Communications in Heat and Mass Transfer, 42. (2013), pp. 62-68, DOI No. 10.1016/j.icheatmasstransfer.2012.12.001
  7. Weiyan, Y., et al., Heat transfer calculation of threaded smoke pipe, Industrial Boiler, 4. (2006), pp.38-42, DOI No. 10.16558/j.cnki.issn1004-8774.2006.04.013
  8. Zhiguang, L., et al., Seventeen-year technical summary of the development of new water-fired tube and shell boilers, Industrial Boiler, 1. (2001), pp.1-13, DOI No. 10.16558/j.cnki.issn1004-8774.2001.01.001
  9. Guodong, L., et al., Heat transfer characteristics of air cross-flow for in-line arrangement of spirally corrugated tube and smooth tube bundles, Journal of Zhejiang University SCIENCE, 6. (2005), pp.670-675, DOI No. 10.163 I/jzus.2005.A0670
  10. Yuan, W., et al., Heat Transfer and Friction Characteristics of Turbulent Flow through a Circular Tube with Ball Turbulators, Applied Sciences, 8. (2018), 5, DOI No. 10.3390/app8050776
  11. Lesage, F.J., et al., A study on heat transfer enhancement using flow channel inserts for thermoelectric power generation, Energy Conversion and Management, 75. (2013), pp. 532-541, DOI No. 10.1016/j.enconman.2013.07.002
  12. García, A., et al., Experimental study of heat transfer enhancement in a flat-plate solar water collector with wire-coil inserts, Applied Thermal Engineering, 61. (2013), 2, pp. 461-468, DOI No. 10.1016/j.applthermaleng.2013.07.048
  13. Hosseinzadeh, K., et al., Effect of internal fins along with Hybrid Nano-Particles on solid process in star shape triplex Latent Heat Thermal Energy Storage System by numerical simulation, Renewable Energy, 154. (2020), pp. 497-507, DOI No. 10.1016/j.renene.2020.03.054
  14. Tijing, L.D., et al., A study on heat transfer enhancement using straight and twisted internal fin inserts, International Communications in Heat and Mass Transfer, 33. (2006), 6, pp. 719-726, DOI No. 10.1016/j.icheatmasstransfer.2006.02.006
  15. Duan, L., et al., Flow and heat transfer characteristics of a double-tube structure internal finned tube with blossom shape internal fins, Applied Thermal Engineering, 128. (2018), pp. 1102-1115, DOI No. 10.1016/j.applthermaleng.2017.09.026
  16. Bellos, E., et al., Enhancing the performance of parabolic trough collectors using nanofluids and turbulators, Renewable and Sustainable Energy Reviews, 91. (2018), pp. 358-375, DOI No. 10.1016/j.rser.2018.03.091
  17. Bellos, E., et al., The impact of internal longitudinal fins in parabolic trough collectors operating with gases, Energy Conversion and Management, 135. (2017), pp. 35-54, DOI No. 10.1016/j.enconman.2016.12.057
  18. Meyer, J.P., J.A. Olivier, Transitional flow inside enhanced tubes for fully developed and developing flow with different types of inlet disturbances: Part I - Adiabatic pressure drops, International Journal of Heat and Mass Transfer, 54. (2011), 7-8, pp. 1587-1597, DOI No. 10.1016/j.ijheatmasstransfer.2010.11.027
  19. Naphon, P., On the performance and entropy generation of the double-pass solar air heater with longitudinal fins, Renewable Energy, 30. (2005), 9, pp. 1345-1357, DOI No. 10.1016/j.renene.2004.10.014
  20. Al-Sarkhi, A., E. Abu-Nada, Characteristics of forced convection heat transfer in vertical internally finned tube, International Communications in Heat and Mass Transfer, 32. (2005), 3-4, pp. 557-564, DOI No. 10.1016/j.icheatmasstransfer.2004.03.015
  21. Zeng, M., et al., Effect of lateral fin profiles on stress performance of internally finned tubes in a high temperature heat exchanger, Applied Thermal Engineering, 50. (2013), 1, pp. 886-895, DOI No. 10.1016/j.applthermaleng.2012.06.011
  22. Wang, Q.-W., et al., Effect of lateral fin profiles on turbulent flow and heat transfer performance of internally finned tubes, Applied Thermal Engineering, 29. (2009), 14-15, pp. 3006-3013, DOI No. 10.1016/j.applthermaleng.2009.03.016
  23. Lin, M., et al., Laminar heat transfer characteristics of internally finned tube with sinusoidal wavy fin, Heat and Mass Transfer, 47. (2011), 6, pp. 641-653, DOI No. 10.1007/s00231-010-0757-5
  24. He, Z., et al., Heat transfer enhancement and exergy efficiency improvement of a micro combustor with internal spiral fins for thermophotovoltaic systems, Applied Thermal Engineering, 189. (2021), DOI No. 10.1016/j.applthermaleng.2021.116723
  25. El Maakoul, A., et al., Numerical investigation of thermohydraulic performance of air to water double-pipe heat exchanger with helical fins, Applied Thermal Engineering, 127. (2017), pp. 127-139, DOI No. 10.1016/j.applthermaleng.2017.08.024
  26. Searle, M., et al., Heat transfer coefficients of additively manufactured tubes with internal pin fins for supercritical carbon dioxide cycle recuperators, Applied Thermal Engineering, 181. (2020), DOI No. 10.1016/j.applthermaleng.2020.116030
  27. Kasperski, J., M. Nemś, Investigation of thermo-hydraulic performance of concentrated solar air-heater with internal multiple-fin array, Applied Thermal Engineering, 58. (2013), 1-2, pp. 411-419, DOI No. 10.1016/j.applthermaleng.2013.04.018
  28. Peyghambarzadeh, S.M., et al., Improving the cooling performance of automobile radiator with Al2O3/water nanofluid, Applied Thermal Engineering, 31. (2011), 10, pp. 1833-1838, DOI No. 10.1016/j.applthermaleng.2011.02.029
  29. Nasr, M., et al., Performance evaluation of flattened tube in boiling heat transfer enhancement and its effect on pressure drop, International Communications in Heat and Mass Transfer, 37. (2010), 4, pp. 430-436, DOI No. 10.1016/j.icheatmasstransfer.2009.11.011
  30. Hussein, A., et al., Heat transfer enhancement with elliptical tube under turbulent flow TiO2-water nanofluid, Thermal Science, 20. (2016), 1, pp. 89-97, DOI No. 10.2298/tsci130204003h
  31. Nine, M., et al., Turbulence and pressure drop behaviors around semicircular ribs in a rectangular channel, Thermal Science, 18. (2014), 2, pp. 419-430, DOI No. 10.2298/tsci111022142n
  32. CHO, C., et al., Numerical investigation into natural convection heat transfer enhancement of copper-water nanofluid in a wavy wall enclosure, Thermal Science, 16. (2012), 5, pp. 1309-1316, DOI No. 10.2298/tsci1205309c
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Heat transfer enhancement in inserted extruded aluminum finned tubes

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