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ISSN 打印: 1065-5131

ISSN 在线: 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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Heat Transfer and Pressure Drop Characteristics of Fin-Tube Heat Exchangers with Different Types of Vortex Generator Configurations

卷 17, 册 3, 2010, pp. 243-256
DOI: 10.1615/JEnhHeatTransf.v17.i3.40
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摘要

A fin-and-tube heat exchanger with three different types of vortex generators is investigated in this study in order to observe the effects of these vortex generators on heat transfer and pressure drop characteristics. The individual as well as the cumulative influences of the vortex generators on the performance of a heat exchanger are examined. The numerical analyses are performed using a computational fluid dynamics (CFD) program named "Fluent". Firstly, each vortex generator type is placed at four different locations on the fin to determine its best location in terms of heat transfer and pressure drop values. After the determination of the best location on the fin for a vortex generator of each type, two different models with all three types of vortex generators are created and analyzed numerically. The investigation of the cumulative effect of three different vortex generators is the novelty of the study. The results of the study show that the use of three different vortex generators together increases heat transfer rate with a moderate increase in pressure drop value. The comparison of the present study results with an experimental and numerical study showed also a good agreement.

对本文的引用
  1. Bilir Levent, İlken Zafer, Erek Aytunç, Numerical optimization of a fin-tube gas to liquid heat exchanger, International Journal of Thermal Sciences, 52, 2012. Crossref

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  5. Lin Zhi-Min, Liu Cai-Ping, Lin Mei, Wang Liang-Bi, Numerical study of flow and heat transfer enhancement of circular tube bank fin heat exchanger with curved delta-winglet vortex generators, Applied Thermal Engineering, 88, 2015. Crossref

  6. Zhao X.B., Tang G.H., Ma X.W., Jin Y., Tao W.Q., Numerical investigation of heat transfer and erosion characteristics for H-type finned oval tube with longitudinal vortex generators and dimples, Applied Energy, 127, 2014. Crossref

  7. Ozturk N. Adil, Ozalp Coskun, Canpolat Cetin, Sahin Besir, PIV measurements of flow through normal triangular cylinder arrays in the passage of a model plate-tube heat exchanger, International Journal of Heat and Fluid Flow, 61, 2016. Crossref

  8. Zhao Xuebin, Tang Guihua, Shi Yuetao, Li Yongkuan, Experimental Study of Heat Transfer and Pressure Drop for H-type Finned Oval Tube with Longitudinal Vortex Generators and Dimples under Flue Gas, Heat Transfer Engineering, 39, 7-8, 2018. Crossref

  9. Zhang Qiang, Wang Liang-Bi, Zhang Yong-Heng, The mechanism of heat transfer enhancement using longitudinal vortex generators in a laminar channel flow with uniform wall temperature, International Journal of Thermal Sciences, 117, 2017. Crossref

  10. Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Enhanced Plate Fin Geometries with Round Tubes and Enhanced Circular Fin Geometries, in Heat Transfer Enhancement in Externally Finned Tubes and Internally Finned Tubes and Annuli, 2020. Crossref

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