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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

Heat Transfer and Pressure Drop During Evaporation and Condensation of R22 inside 9.52-mm O.D. Microfin Tubes of Different Geometries

巻 5, 発行 1, 1998, pp. 39-52
DOI: 10.1615/JEnhHeatTransf.v5.i1.40
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要約

Saturated flow boiling and convective condensation experiments for oil-free Refriger-ant-22 have been carried out with a microfin tube with a new cross-section profile, as well as with two traditional microfin tubes and with a smooth one. All tubes have the same outer diameter. Data are for mass fluxes ranging from about 90 to 400 kg/m2·s. In boiling tests, the nominal saturation temperature is 5 °C, with inlet quality varying from 0.2 to 0.6 and the quality variation along the test section ranging from 0.1 to 0.5. In condensation, results are for saturation temperature equal to 35 °C, with inlet and outlet qualities of 0.8 and 0.2, respectively. The new microfin tube shows the best thermal performances among the microfin tubes tested, especially in evaporation. For this case, the enhancement factor comes up to 4. Experimental results for microfin tubes are compared with predictions of a correlation scheme recently proposed; these predictions correlate well only with data for the microfin tube with a geometry much similar to one accounted by the scheme.

によって引用された
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