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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

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PERFORMANCE EVALUATION OF USING WATER-BASED NANOFLUIDS AS COOLANTS IN THE GAS COOLER OF A TRANSCRITICAL CO2 REFRIGERANT SYSTEM

巻 20, 発行 5, 2013, pp. 389-397
DOI: 10.1615/JEnhHeatTransf.2014008420
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要約

This study explores the possibility of the performance improvement of the gas cooler as well as a transcritical carbon dioxide refrigeration system using Al2O3, TiO2, SiO2, and CuO nanofluids as coolants in the double-tube gas cooler through theoretical analyses. Effects of various operating parameters (CO2 pressure in the gas cooler, mass flow rate, and particle volume fraction) are studied as well. The gas cooler effectiveness, cooling capacity, and COP can be improved by using nanofluid as coolant in a double-tube gas cooler of CO2 cycle with negligible effect on pumping power. The CO2 system yields the best performance using Al2O3-H2O as a coolant in a double-tube gas cooler followed by TiO2-H2O, SiO2-H2O, and CuO-H2O. With Al2O3-H2O nanofluid, the maximum cooling COP improvement of a transcritical CO2 system is 25.4%, whereas that with TiO2-H2O is 23.8%, with SiO2-H2O is 23.1%, and with CuO-H2O is 20.2% for the studied ranges of this study. The present analysis reveals that the performance of the transcritical CO2 refrigeration cycle can be improved by using nanofluid as coolant in a double-tube gas cooler. Alternately, component size and cost can be reduced by using a nanofluid.

によって引用された
  1. Bhattad Atul, Sarkar Jahar, Ghosh Pradyumna, Improving the performance of refrigeration systems by using nanofluids: A comprehensive review, Renewable and Sustainable Energy Reviews, 82, 2018. Crossref

  2. Singh Sumit Kr., Sarkar Jahar, Improvement in Energy Performance of Tubular Heat Exchangers Using Nanofluids: A Review, Current Nanoscience, 16, 2, 2020. Crossref

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