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Journal of Enhanced Heat Transfer
Founding Advisory Editor: Arthur E. Bergles (open in a new tab)

Publicou 8 edições por ano

ISSN Imprimir: 1065-5131

ISSN On-line: 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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Enhancement of R123 Pool Boiling by the Addition of N-hexane

Volume 6, Edição 5, 1999, pp. 343-355
DOI: 10.1615/JEnhHeatTransf.v6.i5.20
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Mark Kedzierski
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RESUMO

This paper presents the heat transfer data used to file international patent WO 94/18282. The data consisted of pool boiling performance of a GEWA-T™ surface for three fluids: (1) pure R123, (2) R123/n-hexane (99/1), and (3) R123/n-hexane (98/2). The heat flux and the wall superheat were measured for each fluid at 277.6 K. A (47 ± 7)% increase over the pure R123 heat flux was achieved with the addition of 1% mass hexane to R123. Similarly, the R123/hexane (98/2) mixture gave a maximum percent heat flux enhancement over pure R123 of (29 ± 7)%. The boiling was filmed with a 16mm highspeed camera. The observations were used to describe various boiling modes on the GEWA-T™ surface. The addition of hexane to pure R123 caused a simultaneous reduction in the bubble diameter and increase in the site density. The increase in site density enhanced the boiling despite the reduction in bubble size. Presumably, the site density enhancement was caused by a layer enriched in hexane at the heat transfer surface.

CITADO POR

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  2. Kedzierski M.A, The effect of lubricant concentration, miscibility, and viscosity on R134a pool boiling, International Journal of Refrigeration, 24, 4, 2001. Crossref

  3. Wang Chi-Chuan, Hafner Armin, Kuo Cheng-Shu, Hsieh Wen-Der, An overview of the effect of lubricant on the heat transfer performance on conventional refrigerants and natural refrigerant R-744, Renewable and Sustainable Energy Reviews, 16, 7, 2012. Crossref

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  5. Peng Hao, Ding Guoliang, Hu Haitao, Effect of surfactant additives on nucleate pool boiling heat transfer of refrigerant-based nanofluid, Experimental Thermal and Fluid Science, 35, 6, 2011. Crossref

  6. Hu Haitao, Peng Hao, Ding Guoliang, Nucleate pool boiling heat transfer characteristics of refrigerant/nanolubricant mixture with surfactant, International Journal of Refrigeration, 36, 3, 2013. Crossref

  7. Cheng Lixin, Mewes Dieter, Luke Andrea, Boiling phenomena with surfactants and polymeric additives: A state-of-the-art review, International Journal of Heat and Mass Transfer, 50, 13-14, 2007. Crossref

  8. Wang Jue, Li Feng-Chen, Li Xiao-Bin, On the mechanism of boiling heat transfer enhancement by surfactant addition, International Journal of Heat and Mass Transfer, 101, 2016. Crossref

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  10. Kedzierski M.A, Enhancement of R123 pool boiling by the addition of hydrocarbons, International Journal of Refrigeration, 23, 2, 2000. Crossref

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  12. Tran Ngoctan, Sheng Shou-Ren, Wang Chi-Chuan, An experimental study and empirical correlations to describe the effect of lubricant oil on the nucleate boiling heat transfer performance for R-1234ze and R-134a, International Communications in Heat and Mass Transfer, 97, 2018. Crossref

  13. Kedzierski M.A, The effect of a boiling additive on R123 condensation on a vertical integral-fin surface, International Journal of Refrigeration, 23, 2, 2000. Crossref

  14. Hung Jung-Tsung, Chen Yu-Kai, Shih Hou-Kuang, Wang Chi-Chuan, A mechanistic model for nucleate boiling heat transfer performance with lubricant-refrigerant mixture, International Journal of Heat and Mass Transfer, 159, 2020. Crossref

  15. Kumar Abhishek, Wang Chi-Chuan, Nucleate pool boiling heat transfer of R-1234ze(E) and R-134a on GEWA-B5H and smooth tube with the influence of POE oil, Applied Thermal Engineering, 201, 2022. Crossref

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