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Journal of Enhanced Heat Transfer

Erscheint 8 Ausgaben pro Jahr

ISSN Druckformat: 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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Heat Transfer Enhancement Characteristics for Falling-Film Evaporation on Horizontal Enhanced Tubes with Aqueous LiBr Solution

Volumen 6, Ausgabe 1, 1999, pp. 61-69
DOI: 10.1615/JEnhHeatTransf.v6.i1.60
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ABSTRAKT

Falling-film evaporation experiments with aqueous lithium bromide solution were performed to investigate the heat transfer characteristics of the enhanced copper tubes. Enhanced tubes (a knurled tube and a spirally grooved tube), a tube coated with 20 μm aluminum particles and a bare tube were selected as test specimens. Averaged evaporation fluxes of water and the heat transfer coefficients were obtained from the horizontal tube with various film Reynolds numbers, system pressures, solution concentrations, and degrees of wall superheat. The results of this work were compared with data reported previously, and the enhanced performance was compared between tubes with varying parameters. It was shown that the heat transfer performance of falling film evaporation was superior to pool boiling at a low wall superheat below 10 K and the knurled tube geometry showed the most excellent performance among the tubes tested.

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