Performance Analysis and Structural Optimization of Torsional Flow Heat Exchangers with Sinusoidal Corrugated Baffle

展开
  • School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China

网络出版日期: 2023-11-28

基金资助

The work is supported by National Natural Science Foundation of China (Grant No. 21776263).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2023

Performance Analysis and Structural Optimization of Torsional Flow Heat Exchangers with Sinusoidal Corrugated Baffle

Expand
  • School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China

Online published: 2023-11-28

Supported by

The work is supported by National Natural Science Foundation of China (Grant No. 21776263).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2023

摘要

支撑结构显著影响着换热器的热性能,而波纹板通过其复杂多变的流道增强了流场扰动和传热为提高扭转流换热器的热性能,采用正弦波纹板代替平板,建立正弦波纹板扭转流换热器全截面周期模型。采用计算流体动力学方法研究了换热器壳程流动阻力特性。结果表明,正弦波纹板能增强导流板间的湍流强度,同时提高导流板间的流场均匀性,通过中心复合设计响应曲面法分析结构参数对壳程性能的影响,并得到传热系数与综合性能组合最优的正弦波纹板结构参数为波幅1.37 mm、周期数4.42、初相位112.73°,较平板传热系数提高11.58%,综合性能提高5.48%。搭建激光多普勒测速实验装置,利用激光多普勒测速仪(LDV)照射指定测量点,验证了数值模拟方法的可靠性与准确性。研究结果为波纹板扭转流换热器的结构开发提供了理论依据。

本文引用格式

GU Xin, SHI Qiming, GAO Wei, LI Menghong, WANG Dan . Performance Analysis and Structural Optimization of Torsional Flow Heat Exchangers with Sinusoidal Corrugated Baffle[J]. 热科学学报, 2023 , 32(2) : 680 -691 . DOI: 10.1007/s11630-023-1773-3

Abstract

The thermal performance of the heat exchanger is strongly influenced by the supporting structure. Corrugated baffle enhances flow field disturbance and heat transfer through its complex and changeable flow channel. In order to enhance the thermal performance of the torsional flow heat exchanger (TFHX), the sinusoidal corrugated baffle (SCB) is used to replace the flat baffle (FB) and the full-section cycle model of the torsional flow heat exchanger with sinusoidal corrugated baffle (TFHX-SCB) is established. Computational fluid dynamics (CFD) method was used to discuss the flow resistance characteristics of the shell-side of heat exchangers. The results show that the SCB can improve the turbulence intensity and the uniformity of the flow field between the adjacent baffles. The combination of structural configurations on the shell-side of TFHX-SCB is analyzed by the central composite design (CCD)-response surface method (RSM). When the amplitude of the SCB is 1.37 mm, the cycles of the SCB are 4.42; the initial phase of the SCB is 112.73°, and the combination of heat transfer coefficient and comprehensive performance is optimal. Compared with the original structure, the heat transfer coefficient is increased by 11.58%, and the comprehensive performance is increased by 5.48%. The laser doppler velocimetry (LDV) experimental device irradiated the specified measurement point, and the dependability and accuracy of numerical simulation methods were verified. The research conclusion provides a basic theory for the structural development of the TFHX.

参考文献

[1] Chen Y.W., Wong C.W.Y., Yang R., et al., Optimal structure adjustment strategy, emission reduction potential and utilization efficiency of fossil energies in china. Energy, 2021, 237: 121623.
[2] Wang Z.H., Zhao X.X., Kwon Y.C., Experimental study on heat transfer performance of white smoke reduction heat exchange system. IOP Conference Series: Earth and Environmental Science, 2020, 446: 022043.
[3] Meng M., Fu Y.A., Wang X.F., Decoupling, decomposition and forecasting analysis of china’s fossil energy consumption from industrial output. Journal of Cleaner Production, 2018, 177: 752–759.
[4] Gu X., Zheng Z.Y., Xiong X.C., et al., Heat transfer and flow resistance characteristics of helical baffle heat exchangers with twisted oval tube. Journal of Thermal Science, 2022, 31: 370–378.
[5] Wang Q.W., Chen G.D., Chen Q.Y., et al., Review of improvements on shell-and-tube heat exchangers with helical baffles. Heat Transfer Engineering, 2010, 31: 836–853.
[6] Gu X., Zheng Z., Xiong X., et al., Characteristics of fluid flow and heat transfer in the shell side of the trapezoidal-like tilted baffles heat exchanger heat transfer engineering. Journal of Thermal Science, 2018, 27: 602–610.
[7] Wang Y.C., Zhao W.S., Wang P.F., et al., Thermal performance of elliptical fin-and-tube heat exchangers with vortex generator under various inclination angles. Journal of Thermal Science, 2021, 30: 257–270.
[8] Gu X., Fang Y.G., Wang C.P., et al., Identification of fully developed regions and experimental investigation of twisted flow heat exchanger. Heat Transfer Research, 2020, 51: 1636–1650.
[9] Fugmann H., Laurenz E., Schnabel L., Wire structure heat exchangers-new designs for efficient heat transfer. Energies, 2017, 10: 1314.
[10] Wang Y.S., Liu Z.C., Huang S.Y., et al., Experimental investigation of shell-and-tube heat exchanger with a new type of baffles. Heat and Mass Transfer, 2011, 47: 833–839.
[11] Gu X., Wang T.T., Chen W.J., et al., Multi-objective optimization on structural parameters of torsional flow heat exchanger. Applied Thermal Engineering, 2019, 161: 113831.
[12] Hao J.H., Chen Q., Li X., et al., A correction factor-based general thermal resistance formula for heat exchanger design and performance analysis. Journal of Thermal Science, 2021, 30: 892–901.
[13] Lutcha J., Nemcansky J., Performance improvement of tubular heat-exchangers by helical baffles. Chemical Engineering Research & Design, 1990, 68: 263–270.
[14] Ma L., Wang K., Liu M. et al., Numerical study on performances of shell-side in trefoil-hole and quatrefoil-hole baffle heat exchangers. Applied Thermal Engineering, 2017, 123: 1444–1455.
[15] El Maakoul A., Laknizi A., Saadeddine S., et al., Numerical comparison of shell-side performance for shell and tube heat exchangers with trefoil-hole, helical and segmental baffles. Applied Thermal Engineering, 2016, 109: 175–185.
[16] Khan T.S., Khan M.S., Chyu M.-C., et al., Review of heat transfer and pressure drop correlations for evaporation of fluid flow in plate heat exchangers (rp-1352). Science and Technology for the Built Environment, 2009, 15: 169–188.
[17] Liu C., Zhang L., Xu Y.K., et al., CFD study on the radial distribution of coolants in the inlet section of rod-baffle-multi-tubular reactor. Korean Journal of Chemical Engineering, 2017, 34: 651–663.
[18] Wang K., Liu J.Q., Liu Z.C., et al., Fluid flow and heat transfer characteristics investigation in the shell side of the branch baffle heat exchanger. Journal of Applied Fluid Mechanics, 2021, 14: 1775–1786.
[19] You Y., Fan A., Huang S., et al., Numerical modeling and experimental validation of heat transfer and flow resistance on the shell side of a shell-and-tube heat exchanger with flower baffles. International Journal of Heat and Mass Transfer, 2012, 55: 7561–7569.
[20] Kral D., Stehlik P., Van D.P.H.J., et al., Helical baffles in shell-and-tube heat exchangers, Part i: Experimental verification. Heat Transfer Engineering, 1996, 17: 93–101.
[21] Jian W., Huizhu Y., Wang S., et al., Numerical investigation on baffle configuration improvement of the heat exchanger with helical baffles. Energy Conversion and Management, 2015, 89: 438–448.
[22] You Y., Fan A., Lai X., et al., Experimental and numerical investigations of shell-side thermo-hydraulic performances for shell-and-tube heat exchanger with trefoil-hole baffles. Applied Thermal Engineering, 2013, 50: 950–956.
[23] Gu X., Liu B., Wang Y.Q., et al., Heat transfer and flow resistance performance of shutter baffle heat exchanger with triangle tube layout in shell side. Advances in Mechanical Engineering, 2016, 8: 1687814016641015.
[24] Gu X., Chen W. J., Fang Y.G., et al., Analysis of flow dead zone in shell side of a heat exchanger with torsional flow in shell side. Applied Thermal Engineering, 2020, 180: 115792.
[25] Benzenine H., Saim R., Abboudi S., et al., Numerical study on turbulent flow forced-convection heat transfer for air in a channel with waved fins. Mechanika, 2013, 2: 150–158.
[26] Boonloi A., Jedsadaratanachai W., CFD analysis on heat transfer characteristics and fluid flow structure in a square duct with modified wavy baffles. Case Studies in Thermal Engineering, 2022, 29: 101660.
[27] Harikrishnan S., Tiwari S., Heat transfer characteristics of sinusoidal wavy channel with secondary corrugations. International Journal of Thermal Sciences, 2019, 145: 105973.
[28] Yang J., Ma L., Bock J., et al., A comparison of four numerical modeling approaches for enhanced shell-and-tube heat exchangers with experimental validation. Applied Thermal Engineering, 2014, 65: 369– 383.
[29] Huang Z., Li Z.Y., Yu G.L., et al., Numerical investigations on fully-developed mixed turbulent convection in dimpled parabolic trough receiver tubes. Applied Thermal Engineering, 2017, 114: 1287–1299.
[30] Gu X., Wang G., Zhang Q.X., et al., Fluid-structure interaction analysis of heat exchanger with torsional flow in the shell side. Journal of Mechanical Science and Technology, 2022, 36: 479–489.
[31] Li E.B., Tieu A.K., Yuen W.Y.D., Measurements of velocity distributions in the deformation zone in cold rolling by a scanning LDV. Optics and Lasers in Engineering, 2001, 35: 41–49.
[32] He Y.L., Tang S.Z., Tao W.Q., et al., A general and rapid method for performance evaluation of enhanced heat transfer techniques. International Journal of Heat and Mass Transfer, 2019, 145: 118780.
[33] Box G.E.P., Wilson K.B., On the experimental attainment of optimum conditions. Journal of the Royal Statistical Society, 1951, 13: 1–38. 
DOI: 10.111/j.2517-6161.1951.tb00067.x 
[34] Han H.Z., Li B.X., Shao W., Multi-objective optimization of outward convex corrugated tubes using response surface methodology. Applied Thermal Engineering, 2014, 70: 250–262.
文章导航

/