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Journal of Enhanced Heat Transfer

Published 8 issues per year

ISSN Print: 1065-5131

ISSN Online: 1563-5074

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 2.3 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.2 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00037 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.6 SJR: 0.433 SNIP: 0.593 CiteScore™:: 4.3 H-Index: 35

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Efficiency of Fins Used in a Finned Oval Tube Heat Exchanger

Volume 10, Issue 3, 2003, pp. 323-334
DOI: 10.1615/JEnhHeatTransf.v10.i3.70
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ABSTRACT

The fin efficiency of a finned oval tube heat exchanger is usually calculated by first converting the oval tube to an equivalent round tube and then using the Schmidt fin efficiency technique. There are two ways of selecting the equivalent round tube: one is to make the perimeter of the equivalent round tube equal to that of the oval tube; and the other is to make the area of the equivalent round tube equal to that of the oval tube. The present research uses the sector method to calculate the fin efficiency of finned oval tube exchangers. The fin efficiencies obtained from the equal-perimeter and equal-area methods were compared with those calculated from the sector method. The equal-perimeter method yields a higher fin efficiency, whereas the equal-area method gives a lower fin efficiency compared to the sector method. To make the Schmidt equation applicable to the oval tube case, correlations for determining the radius of the equivalent round tube were developed based on the results generated by the sector method. Correlations are provided for both staggered and in-line arrays of oval tubes. By combining the radius correlation with the Schmidt equation, one can readily determine the fin efficiency of a finned oval tube exchanger with accuracy comparable to that of the sector method.

CITED BY
  1. Kim Nae-Hyun, Kim Soo-Hwan, Dry and wet air-side performance of a louver-finned heat exchanger having flat tubes, Journal of Mechanical Science and Technology, 24, 7, 2010. Crossref

  2. Bahadori Alireza, Vuthaluru Hari B., Predictive tool for estimation of convection heat transfer coefficients and efficiencies for finned tubular sections, International Journal of Thermal Sciences, 49, 8, 2010. Crossref

  3. KIM NAE-HYUN, LEE KANG-JONG, HAN JI-CHAO, CHOI BYUNG-NAM, THERMAL PERFORMANCE OF SINE WAVE FIN-AND-OVAL TUBE HEAT EXCHANGERS, International Journal of Air-Conditioning and Refrigeration, 21, 01, 2013. Crossref

  4. Choi Byung-Nam, Yi Fung, Sim Hyun-Min, Kim Nae-Hyun, Air-Side Performance of Fin-and-Tube Heat Exchangers Having Sine Wave Fins and Oval Tubes, Korean Journal of Air-Conditioning and Refrigeration Engineering, 25, 5, 2013. Crossref

  5. Khaled A.-R. A., Generalized Correlations for Heat Transfer through High Performance Fins, Advances in Mechanical Engineering, 5, 2013. Crossref

  6. Kim Nae-Hyun, Wet Surface Air-Side Performance of Fin-and-Tube Heat Exchangers Having Sine Wave Fins and Oval Tubes, Journal of the Korea Academia-Industrial cooperation Society, 16, 4, 2015. Crossref

  7. Khaled AbdulRahim Assaad, Thermal performance of six different types of wavy-fins, International Journal of Numerical Methods for Heat & Fluid Flow, 25, 4, 2015. Crossref

  8. Gu Lingdong, Min Jingchun, Wu Xiaomin, Yang Lijun, Airside heat transfer and pressure loss characteristics of bare and finned tube heat exchangers used for aero engine cooling considering variable air properties, International Journal of Heat and Mass Transfer, 108, 2017. Crossref

  9. Kim Nae-Hyun, Kim Cheol-Hwan, Han Ho-Seung, An airside performance of the wavy fin-and-tube heat exchangers having oval tubes, Applied Thermal Engineering, 190, 2021. Crossref

  10. KIM Nae-Hyun, Effects of fin corrugation and tube geometry on the airside performance of fin-and-tube heat exchangers - Part I; dry surface, Journal of Thermal Science and Technology, 16, 2, 2021. Crossref

  11. Kim Nae-Hyun, Air-side heat transfer and pressure drop of the fin-and-tube heat exchangers having oval tubes under wet condition, Heat and Mass Transfer, 57, 10, 2021. Crossref

  12. Myong Ji-Hyun, Choi Byung-Nam, Go Min-Geon, Kim Nae-Hyun, Experimental investigation on the airside heat transfer and pressure drop of the fin-and-tube heat exchangers having oval tubes, Experimental Heat Transfer, 35, 4, 2022. Crossref

  13. Kim Nae-Hyun, Lee Kang-Jong, Jeong Yeong-Bin, Airside performance of oval tube heat exchangers having sine wave fins under wet condition, Applied Thermal Engineering, 66, 1-2, 2014. Crossref

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