Heat transfer optimization in a vertical cylinder tube with vertically arranged fins
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The optimal geometric configuration of a passive heat exchanger in a vertical cylinder is presented herein. The heat exchanger is positioned vertically at the center of the cylinder. Several parameters and flow conditions are investigated to determine the optimized geometric parameters. The finite volume numerical technique is used to obtain computational results. The results show that the number of fins and the cylinder height impose a more significant effect as the inlet velocity increases, whereas the fin height shows similar effects for all inlet velocities tested (1 to 5 m/s). The best heat flux performance is observed at a fin height of 10 mm and a fin count of 58 at a high inlet velocity. A cylinder length of 200 mm is selected considering geometry restrictions.
Abstract
The optimal geometric configuration of a passive heat exchanger in a vertical cylinder is presented herein. The heat exchanger is positioned vertically at the center of the cylinder. Several parameters and flow conditions are investigated to determine the optimized geometric parameters. The finite volume numerical technique is used to obtain computational results. The results show that the number of fins and the cylinder height impose a more significant effect as the inlet velocity increases, whereas the fin height shows similar effects for all inlet velocities tested (1 to 5 m/s). The best heat flux performance is observed at a fin height of 10 mm and a fin count of 58 at a high inlet velocity. A cylinder length of 200 mm is selected considering geometry restrictions.
참고문헌 (9)
- Y. Q. Wang, "Numerical study on plate-fin heat exchangers with plain fins and serrated fins at low Reynolds number", Chemical Engineering Technology, 32(8), pp.1219~1226 (2009)
- M. Gupta, "A numerical study of the effect on flow structure and heat transfer of a rectangular winglet pair in a plate fin heat exchanger", Journal of Mechanical Engineering Science, 223(9), pp.2109~2215 (2009)
- Y. Zhu, "Three-dimensional numerical simulation on the Laminar flow and heat transfer in four basic fins of plate-fin heat exchangers", Journal of Heat Transfer, 130(11) (2008)
- H. Peng, "Optimal design approach for the plate-fin heat exchangers using neural networks cooperated with genetic algorithms", Applied Thermal Engineering, 28(5-6), pp.642~650 (2008)
- M. Yousefi, "Optimization of plate-fin heat exchangers by an improved harmony search algorithm", Applied Thermal Engineering, 50(1), pp.877~885 (2013)
- H. T. Chen, "Estimation of heat transfer coefficient on the fin of annular-finned tube heat exchangers in natural convection for various fin spacings", International Journal of Heat Mass Transfer, 50(9-10), pp.1750~1761 (2007)
- H. T. Chen, "Numerical and experimental study of natural convection heat transfer characteristics for vertical plate fin and tube heat exchangers with various tube diameters", International Journal of Heat Mass Transfer, 100, pp.320~331 (2016)
- 김은필, "Numerical analysis of a channel flow with two tubes in a vertical plain-fin type heat exchanger", 한국마린엔지니어링학회지, 41(5), pp.383~388 (2017), 한국마린엔지니어링학회[DOI]