Abstract
An experimental study of heat transfer was conducted on rectangular finned heat exchanger with 8-row tubes and wind tunnel system. And compared with four different empirical correlation calculate the heat transfer coefficient of finned tube heat exchanger, Then compared with two different empirical correlation calculate the drag coefficient of finned tube heat exchanger. As can be seen from the result of fitting formula, the total heat transfer coefficient increased as Reynolds number. Finally, the result was fitted into formula of heat transfer coefficient and drag coefficient, which was applicable to a certain velocity range of the same type of tube bundle. Results show that, within the range of wind velocity, both the total heat transfer coefficient and flow resistance were increased as Reynolds number. And it can be concluded the outside tube heat transfer coefficient based on exterior area of bare tube increased obviously as Reynolds number, while that of finned tube increased not obviously as Reynolds number.
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© 2014 Springer-Verlag Berlin Heidelberg
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Guo, Y., Wang, M., Liu, G. (2014). Experimental Study of Heat Transfer and Resistance on Finned Tube Exchanger. In: Li, A., Zhu, Y., Li, Y. (eds) Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning. Lecture Notes in Electrical Engineering, vol 262. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-39581-9_63
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DOI: https://doi.org/10.1007/978-3-642-39581-9_63
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