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Journal of Enhanced Heat Transfer

年間 8 号発行

ISSN 印刷: 1065-5131

ISSN オンライン: 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

R-22 Condensation in Flat Aluminum Multi-Channel Tubes

巻 7, 発行 6, 2000, pp. 427-438
DOI: 10.1615/JEnhHeatTransf.v7.i6.50
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要約

In this study, condensation heat transfer tests were conducted in flat aluminum multichannel tubes using R-22. Two internal geometries were tested; one with a smooth inner surface and the other with micro-fins. Data are presented for the following range of variables; vapor quality (0.1 ∼ 0.9), mass flux (200 ∼ 600 kg/m2s) and heat flux (5 ∼ 15kW/m2). The micro-fin tube showed higher heat transfer coefficients compared with those of the smooth tube. The difference increased with the vapor quality. Surface tension force acting on the micro-fin surface at high vapor quality is believed to be responsible. For the smooth tube, the heat transfer coefficient increased with the mass flux. The heat transfer coefficient of the micro-fin tube, however, was independent of the mass flux, especially at high vapor qualities. This implies that, at the high vapor quality, the surface tension force on the fin is dominant over vapor shear. The 1997 Yang and Webb model was modified to correlate the present data. The modified model adequately predicted the data.

によって引用された
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