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http://dx.doi.org/10.9726/kspse.2014.18.5.022

Performance Characteristic of Large Diameter Oval Finned-Tube Heat Exchanger for Dryer  

Bae, Kyung-Jin (Korea Institute of Industrial Technology)
Cha, Dong-An (Korea Institute of Industrial Technology)
Kwon, Oh-Kyung (Thermal & Fluid System R&BD Group, Korea Institute of Industrial Technology)
Publication Information
Journal of Power System Engineering / v.18, no.5, 2014 , pp. 22-27 More about this Journal
Abstract
The objectives of this paper are to obtain an empirical equations regarding the correlations between heat transfer and pressure drop of oval fin-tube heat exchanger having large diameter using wilson plot method. It was difficult to find any recommendable heat transfer and friction factor correlation available for our large diameter experimental cases. Overall heat transfer coefficients are composed of the heat transfer coefficients both inside and outside tubes. The resulting empirical correlations for the Nui and f-factor are given as $Nu_i=0.0146Re^{0.809}Pr^{0.3}$ and $f=4.366Re^{-0.64}$, respectively. The empirical correlations of the Nui and f-factors were developed for the large diameter oval finned-tube heat exchanger as a function of the Reynolds number. As the EG(Ethylene glycol) and air flow rate increases, the heat transfer rate and pressure drop is increased largely.
Keywords
Oval Finned-tube Heat Exchanger; Overall Heat Transfer Coefficient; Pressure Drop;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 W. P. Chun, 2007, "Energy resource developments", The 7 Research Planning and Analysis Reports - Dryer Part.
2 J. H. Yoo and J. K. Yoon, 2013, "Numerical Analysis for Heat Transfer Characteristics of Elliptic Fin-Tube Heat Exchanger with Various Shapes", Trans. Korean Soc. Mech. Eng. B, Vol. 37, No. 4, pp. 367-375.   과학기술학회마을   DOI   ScienceOn
3 Y. W. Chiu, Y. X. Lin and J. Y. Jang, 2007, "Numerical and Experimental Analysis of Elliptic Finned-Tube Heat Exchangers Under Misted Conditions", Proceedings of Clima 2007 Well being Indoors.
4 B. N. Choi, Y. Fung, H. M. Sim and N. H. Kim, 2013, "Air-Side Performance of Fin-and-Tube Heat Exchangers Having Sine Wave Fins and Oval Tubes", Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 25, No. 5, pp. 279-288.   과학기술학회마을   DOI   ScienceOn
5 E. E. Wilson, 1915, A Basis for Rational Design of Heat Transfer Apparatus, Trans. Am. Soc. Mech. Engrs., Vol.. 37, pp. 47-70.
6 M. K. Seo, Y. S. Kim and S. K. Lee, 1999, "Experimental Study on Heat Transfer Characteristics for Single-phase Flow in Plate & Shell Heat Exchangers by Using Wilson Plot Method", Journal of the Korean society for Power System Engineering, Vol. 3, No. 4, pp. 22-27.   과학기술학회마을
7 F. W. Dittus and L. M. K. Boelter, 1930, "Heat Transfer in Automobile Radiators of the Tubular Type", University of California Publications in Engineering, Vol. 2, pp. 443-461.
8 F. M. White, 1979, Fluid Mechanics, Mc-Graw-Hill, p. 322.