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Theoretical and Experimental Analysis of Heat Transfer and Condensation in Micro-Ribbed Tubes

Daoming Shen1,*, Jinhong Xia1, Chao Gui1, Songtao Xue2

1 Xinxiang University, Xinxiang, 453000, China
2 Department of Architecture, Tohoku Institute of Technology, Sendai, 982-8577, Japan

* Corresponding Author: Daoming Shen. Email: email

(This article belongs to this Special Issue: Computational Mechanics and Fluid Dynamics in Intelligent Manufacturing and Material Processing)

Fluid Dynamics & Materials Processing 2023, 19(6), 1411-1424. https://doi.org/10.32604/fdmp.2023.024924

Abstract

The thermal transmission coefficient for a micro-ribbed tube has been determined using theoretical relationships and the outcomes of such calculations have been compared with experiments conducted using a R1234yf refrigerant undergoing condensation. In particular four theoretical single-phase flow and three multi-phase flow models have been used in this regard. The experimental results show that: the Oliver et al. criterion equation overestimates the experimental results as its accuracy is significantly affected by the specific conditions realized inside micro-fin tubes; the Miyara et al. criterion equation prediction error is less than 15%; the Cavallini et al. approach gives the highest prediction accuracy; the Goto et al. model overestimates the test data. Such results are critically discussed and some indications for the improvement of such models are provided.

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Cite This Article

Shen, D., Xia, J., Gui, C., Xue, S. (2023). Theoretical and Experimental Analysis of Heat Transfer and Condensation in Micro-Ribbed Tubes. FDMP-Fluid Dynamics & Materials Processing, 19(6), 1411–1424.



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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