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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

Indexed in

FALLING FILM EVAPORATION OF PURE REFRIGERANT HCFC123 IN A PLATE-FIN HEAT EXCHANGER

Volume 19, Issue 4, 2012, pp. 301-311
DOI: 10.1615/JEnhHeatTransf.2012001693
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ABSTRACT

In the present study, the characteristics of heat transfer and flow patterns are investigated experimentally for the falling film evaporation of pure refrigerant HCFC123 in a vertical rectangular channel with a serrated-fin surface. The refrigerant liquid is supplied to the channel through 37 holes of a distributor. The liquid flowing down vertically is heated electrically from the rear wall of the channel and evaporated. To directly observe the flow patterns during the evaporation process, a transparent vinyl chloride resin plate is placed as the front wall. The experimental parameters are as follows: the mass velocity G = 28−70 kg/(m2·s), the heat flux q = 20−50 kW/m2, and the pressure P ≈ 100 kPa. It is clarified that the heat transfer coefficient α depends on G and q in the region of vapor quality x ≥ 0.3 while there is little influence of G and q in the region x ≤ 0.3. From the direct observation using a high-speed video camera and a digital still camera, flow patterns are classified into five typical patterns: plane liquid film, wavy liquid film, liquid film accompanied with a dry patch, liquid film accompanied with dripping, and liquid film accompanied with mist. Then the relation between heat transfer and flow pattern is clarified. The results of heat transfer characteristics are also compared with some previous correlation equations.

CITED BY
  1. Zhou Yuanyuan, Yu Jianlin, Numerical Analysis of Heat Transfer Characteristics of a Falling Film Type Plate-Fin Condenser/Reboiler, Journal of Heat Transfer, 138, 8, 2016. Crossref

  2. Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Round Tubes Having Plain-Plate Fins, in Heat Transfer Enhancement in Externally Finned Tubes and Internally Finned Tubes and Annuli, 2020. Crossref

  3. Zhou Yuanyuan, Yu Jianlin, Gao Ming, An experimental study of falling film evaporation in vertical channels with perforated fins of a plate-fin heat exchanger, Chemical Engineering and Processing - Process Intensification, 145, 2019. Crossref

  4. Li Xiaohuan, Fang Xiande, Luo Zufen, Xu Lu, Shang Hongfeng, A New Correlation of Heat Transfer Coefficients for Flow Boiling in Serrated Channels, Journal of Thermal Science and Engineering Applications, 14, 4, 2022. Crossref

  5. Ohara Junichi, Evaporation Heat Transfer of HFO-1233zd (E) in Falling Film Type Plate-fin Evaporator, Marine Engineering, 56, 3, 2021. Crossref

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