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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

Indexed in

Structural Optimization of Axially Grooved Flat Miniature Heat Pipes

卷 7, 册 6, 2000, pp. 361-369
DOI: 10.1615/JEnhHeatTransf.v7.i6.10
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摘要

Optimization of flat miniature heat pipes was carried out based on the existing and newly obtained experimental results and the quasi-Newton algorithms employing the BFGS (Broyden, Flether, Golfarb, Shanno) method. The heat pipe contains capillary axial grooves that were cut using the method of electric-discharge-machining (EDM). The general multivariable optimization methods were used to search for the optimum structure of the heat pipe. Based on the optimization results, a miniature copper-water heat pipe with external overall dimensions of 7 × 3 × 120 mm was fabricated and tested. Maximum heat transfer rates of 50 watts in the horizontal orientation and 70 watts in the vertical orientation at a working temperature of 100°C were achieved. The corresponding heat fluxes were 25 and 35 W/cm2, respectively, based on the external heating surface area. These two values are increased to 40 and 56 W/cm2 if the calculation is based on the dimensions of the vapor space. The heat transport capacity of the optimized heat pipe was increased by 66% to 100% at the working temperature of 100°C, compared to the non-optimized heat pipes. The effective thermal conductance of the heat pipe was 60 to 110 times that of a copper bar having the same overall dimensions.

对本文的引用
  1. Goldstein R.J., Eckert E.R.G., Ibele W.E., Patankar S.V., Simon T.W., Kuehn T.H., Strykowski P.J., Tamma K.K., Bar-Cohen A., Heberlein J.V.R., Davidson J.H., Bischof J., Kulacki F.A., Kortshagen U., Garrick S., Heat transfer – a review of 2000 literature, International Journal of Heat and Mass Transfer, 45, 14, 2002. Crossref

  2. Cao Yiding, Xu Dehao, Gao Mingcong, Experimental study of a bellows-type reciprocating-mechanism driven heat loop, International Journal of Energy Research, 37, 6, 2013. Crossref

  3. Chen Jung-Shun, Chou Jung-Hua, The length and bending angle effects on the cooling performance of flat plate heat pipes, International Journal of Heat and Mass Transfer, 90, 2015. Crossref

  4. Chen J.-S., Chou J.-H., Thermal Performance of Cooling Enhancement of Miniature Flat Plate Heat Pipe Under Different Angle, Journal of Mechanics, 32, 1, 2016. Crossref

  5. Suparman Sudjito, Sarip , Yuliati Lilis, Choiron Moch. Agus, Experiment on Novel Design of Tapered Shape Heat Pipe, IOP Conference Series: Materials Science and Engineering, 494, 2019. Crossref

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