ABSTRACT
A numerical investigation is performed to study the thermal-hydraulic performances of tube-on-sheet heat exchanger. Especially, this paper is focused on the effects of the structure parameters (fin angles, fin lengths, fin pitches, fin widths, and tube arc radius) on the thermal-hydraulic characteristics of the heat exchanger. The heat exchanger optimized structural parameters are obtained. The results reveal that main structure parameters on thermal-hydraulic performance are fin angle, fin length, fin pitch, and fin width. Furthermore, decreasing the fin angle, fin pitch, and fin width or increasing the fin length cause thermal hydraulic performance to increase. In addition, main structure parameters on low temperature corrosion are tube arc radius and fin length. Decreasing the tube arc radius and fin length can mitigate low temperature corrosion. Furth, stainless steel is choosing as the material for the heat exchanger to reduce corrosion.
KEYWORDS
PAPER SUBMITTED: 2020-06-05
PAPER REVISED: 2020-08-25
PAPER ACCEPTED: 2020-09-18
PUBLISHED ONLINE: 2020-10-31
THERMAL SCIENCE YEAR
2021, VOLUME
25, ISSUE
Issue 5, PAGES [3259 - 3267]
- Ereka, A., et al., Effect of geometrical parameters on heat transfer and pressure drop characteristics of plate fin and tube heat exchangers. Applied Thermal Engineering.25 (2005), pp. 2421-2431
- Antonescua, N., et al., Computational model for a condensing boiler with finned tubes heat Exchanger. Energy Procedia, 112 (2017), pp. 555-562
- González, A. M., et al., A hybrid numerical-experimental analysis of heat transfer by forced convection in plate-finned heat exchangers. Applied Thermal Engineering.148 (2019), pp. 363-370
- Kim, M., et al., Air-side performance of brazed aluminum heat exchangers under dehumidifying conditions. International Journal of refrigeration, 25(2002), pp. 924-934
- Lee, S., et al., Performances of a heat exchanger and pilot boiler for the development of a condensing gas boiler. Energy, 36 (2011), pp. 3945-3951
- Xu, J., et al., Numerical simulation of the flow and heat-transfer characteristics of an aligned external three-dimensional rectangular-finned tube bank. Applied Thermal Engineering.145 (2018) 10-122.
- Kundu, B., et al., Performance Analysis of Plate Fins Circumscribing Elliptic Tubes. Heat transfer engineering. 27(2006), 3, pp.86-94.
- Trojanowski, R., et al., Polymer heat exchanger design for condensing boiler applications. Applied Thermal Engineering, 103(2016), 150-158
- Zhang, G. H., et al., Review of experimentation and modeling of heat and mass transfer performance of fin-and-tube heat exchangers with dehumidification. Applied Thermal Engineering, 146 (2019) 701-717.
- Deepakkumar, R., et al., Air side performance of finned-tube heat exchanger with combination of circular and elliptical tubes. Applied Thermal Engineering.119 (2017)360-372.
- Wang, Q., et al., Analysis on thermal hydraulic performance of the elliptical tube in the finned-tube heat exchanger by new method. International Journal of Heat and Mass Transfer.134 (2019), pp. 388-307.
- Jang, J., et al., Experimental and 3-D Numerical Analysis of the Thermal-Hydraulic Characteristics of Elliptic Finned-Tube Heat Exchangers. Heat transfer engineering. 19(1998), 4, pp.55-67.
- Li, M., et al., 3D numerical simulation of heat and mass transfer of fin-and-tube heat exchanger under dehumidifying conditions. International Journal of Heat and Mass Transfer.127(2018), pp. 597-610.
- Liu, Z. Y., et al., Numerical study of the air inlet angle influence on the airside performance of plate-fin heat exchangers. Applied Thermal Engineering. 89 (2015), pp. 356-364.
- Doohan, R. S., et al., Exergy based optimization and experimental evaluation of plate fin heat exchanger. Applied Thermal Engineering.102 (2016), pp. 80-90.
- Guo, K., et al., Design optimisation of multi-stream plate fin heat exchangers with multiple fin types. Applied Thermal Engineering.131 (2018), pp. 30-40.
- Yang, H. Z., et al., Effect of fin types and Prandtl number on performance of plate-fin heat exchanger: Experimental and numerical assessment. Applied Thermal Engineering.144 (2018), pp. 726-735.
- Ahmed, H., et al., Optimization of thermal design of ribbed flat-plate fin heat sink. Applied Thermal Engineering.102 (2016), pp. 1422-1432.
- Tao, Y. B., et al., Three-dimensional numerical study of wavy fin-and-tube heat exchangers and field synergy principle analysis. International Journal of Heat and Mass Transfer, 50 (2007), pp. 1163-1175.
- Cui, Y. Z., et al., Three-dimension numerical simulation of thermal hydraulic performance of a circular tube with edgefold twisted tape inserts. Journal of Hydrodynamics, 22(2010), 5, 662-670.
- Gao, G., et al., Structural Parameters Study on Stainless-Steel flat-tube heat exchangers with corrugated fins. Thermal Science, 24(2020), 5A, 2743-2756.
