Analysis Of Thermal Performance Of A Staggered Tube Heat Exchanger With Different Fin Designs
Keywords:
Tube banks, staggered tube heat exchanger, Circular and rectangular shaped finsAbstract
Tube banks are a common structural component that may be found in heat exchangers. Smooth tube banks and finned tube banks are both quite easy to locate in the area. There are times when the flow of shell-and-tube heat exchangers, of which tube bundles are a component, is analogous to crossflow, and there are other times when the flow is analogous to longitudinal flow. A CFD model of staggered tube heat exchanger of 600 mm in length and 150 mm in breadth with a matrix of 13 tubes with a circular cross sections arranged in staggered patterns makes up the has been used for the analysis. Circular and rectangular shaped fins make up the two cases for the comparison of best performance. Longitudinal pitch (SL) is 43.75 mm as well as transverse pitch (ST) equals 50 mm to construct the two test portions of the cylinder with & without splitter plate. After selecting the best fin design, the longitudinal pitch (SL) of the tubes is then varied and analysed for the best performance. The average outlet velocity showed an increase in case of finned tube heat exchangers. The maximum turbulence kinetic energy is seen in case of rectangular fins, i.e., 26.566m2/s2. The temperature contours show that the maximum average temperature at the outlet has been achieved in the case of rectangular fins, i.e., 310.969 K. The effective spacing between each pipe is 43.75 mm and the placement of rectangular fins can be an effective option for better transfer of heat in air.
References
N. S. Khashi’ie, I. Waini, A. R. M. Kasim, N. A. Zainal, A. Ishak, and I. Pop, “Magnetohydrodynamic and viscous dissipation effects on radiative heat transfer of non-Newtonian fluid flow past a nonlinearly shrinking sheet: Reiner–Philippoff model,” Alexandria Eng. J., vol. 61, no. 10, pp. 7605–7617, 2022, doi: 10.1016/j.aej.2022.01.014.
S. K. Nayak and S. Mondal, “Viscosity correction in convective heat transfer correlation of non-Newtonian fluid pipe flow: Revisited,” Chem. Eng. Sci., vol. 235, p. 116472, 2021, doi: 10.1016/j.ces.2021.116472.
R. Kavitha, Y. Methkal Abd Algani, K. Kulkarni, and M. K. Gupta, “Heat transfer enhancement in a double pipe heat exchanger with copper oxide nanofluid: An experimental study,” Mater. Today Proc., 2021, doi: https://doi.org/10.1016/j.matpr.2021.11.096.
S. Sivalakshmi, M. Raja, and G. Gowtham, “Effect of helical fins on the performance of a double pipe heat exchanger,” Mater. Today Proc., vol. 43, no. xxxx, pp. 1128–1131, 2020, doi: 10.1016/j.matpr.2020.08.563.
K. U. Rehman, M. Y. Malik, Q. M. Al-Mdallal, and W. Al-Kouz, “Heat transfer analysis on buoyantly convective non-Newtonian stream in a hexagonal enclosure rooted with T-Shaped flipper: Hybrid meshed analysis,” Case Stud. Therm. Eng., vol. 21, no. April, p. 100725, 2020, doi: 10.1016/j.csite.2020.100725.
S. S. Mozafarie and K. Javaherdeh, “Numerical design and heat transfer analysis of a non-Newtonian fluid flow for annulus with helical fins,” Eng. Sci. Technol. an Int. J., vol. 22, no. 4, pp. 1107–1115, 2019, doi: 10.1016/j.jestch.2019.03.001.
K. Sharifi, M. Sabeti, M. Rafiei, A. H. Mohammadi, and L. Shirazi, “Computational fluid dynamics (CFD) technique to study the effects of helical wire inserts on heat transfer and pressure drop in a double pipe heat exchanger,” Appl. Therm. Eng., vol. 128, pp. 898–910, 2018, doi: 10.1016/j.applthermaleng.2017.08.146.
H. Zhang, Y. Kang, and T. Xu, “Study on Heat Transfer of Non-Newtonian Power Law Fluid in Pipes with Different Cross Sections,” Procedia Eng., vol. 205, pp. 3381–3388, 2017, doi: 10.1016/j.proeng.2017.09.845.
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