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http://dx.doi.org/10.17664/ksgee.2019.15.3.007

Investigation of Flow Distribution Characteristics at the Channel Location according to the Header Shape of Welded Plate Heat Exchanger  

Ham, Jeonggyun (Department of Mechanical Engineering, Graduate School of Chosun University)
Kim, Eui (Department of Mechanical Engineering, Graduate School of Chosun University)
An, Sungkook (R&D Center, Samil Co. Ltd.)
Cho, Honghyun (Department of Mechanical Engineering, Chosun University)
Publication Information
Journal of the Korean Society for Geothermal and Hydrothermal Energy / v.15, no.3, 2019 , pp. 7-13 More about this Journal
Abstract
To improve the flow distribution at channel locations in the welded plate heat exchanger with "L"-type inflow, the flow visualization of Model 1 was carried out. Besides, the characteristics of flow distribution was investigated experimentally according to the header shape. The inlet flow rate for each channel location was increased at the side channels but decreased at the central channels. In the case of Model 2, which has a slant structure added to the basic header of Model 1, the unevenness of inlet flow increased by 23% from 0.019 to 0.023 as compared to Model 1. On the other hand, Model 3, which has a baffle structure added to Model 2, showed 0.064 unevenness in inlet flow, which was a 36% reduction one compared to Model 1. To improve the distribution at each channel in the welded plate heat exchanger with "L"-type flow, it is necessary to improve the header external shape for the guide of flow as well as the baffle structure for reduction of vortex flow.
Keywords
Welded plate heat exchanger; Flow visualization; Header shape; Distribution of flow; Jet flow;
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1 J. Dong, X. Xu, and B. Xu, 2017, CFD analysis of a novel modular manifold with multi-stage channels for uniform air distribution in a fuel cell stack, Applied Thermal Engineering, Vol. 124, pp. 286-293.   DOI
2 M. Wei, Y. Fan, L. Luo, and G. Flamant, 2017, Design and optimization of baffled fluid distributor for realizing target flow distribution in a tubular solar receiver, Energy, Vol. 136, pp. 126-134.   DOI
3 K. Wang, X. C. Tu, C. H. Bae, and H. B. Kim, 2015, Optimal design of porous baffle to improve the flow distribution in the tube-side inlet of a shell and tube heat exchanger, International Journal of Heat and Mass Transfer, Vol. 80, pp. 865-872.   DOI
4 O. P. Arsenyeva, L. L. Tovazhnyanskyy, P. O. Kapustenko, G. L. Khavin, A. P. Yuzbashyan, and P. Y. Arsenyev, 2016, Two types of welded plate heat exchangers for efficient heat recovery in industry, Applied Thermal Engineering, Vol. 105, pp. 763-773.   DOI
5 A. Larsson, 2018, A process survey and business potential analysis for the use of large plate heat exchangers in industrial applications
6 J. Zhou, Z. Sun, M. Ding, H. Bian, N. Zhang, and Z. Meng, 2017, CFD simulation for flow distribution in manifolds of central-type compact parallel flow heat exchangers, Applied Thermal Engineering, Vol. 126, pp. 670-677.   DOI
7 C. C. Wang, K. S. Yang, J. S. Tsai, and Y. Chen, 2011, Characteristics of flow distribution in compact parallel flow heat exchangers, part I: Typical inlet header, Applied Thermal Engineering, Vol. 31(16), pp. 3226-3234.   DOI
8 C. C. Wang, K. S. Yang, J. S. Tsai, and Y. Chen, 2011, Characteristics of flow distribution in compact parallel flow heat exchangers, part II: modified inlet header. Applied Thermal Engineering, Vol. 31(16), pp. 3235- 3242.   DOI
9 Y. Li, Y. Li, Q., Hu, W. Wang, B. Xie, and X. Yu, 2015, Sloshing resistance and gas-liquid distribution performance in the entrance of LNG plate-fin heat exchangers, Applied Thermal Engineering, Vol. 82, pp. 182-193.   DOI
10 J. P. Chiou, 1982, The effect of nonuniform fluid flow distribution on the thermal performance of solar collector, Solar Energy, Vol. 29(6), pp. 487-502.   DOI
11 A. Raul, B. N. Bhasme, and R. S. Maurya, 2016, A numerical investigation of fluid flow maldistribution in inlet header configuration of plate fin heat exchanger, Energy Procedia, Vol. 90, pp. 267-275.   DOI