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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

THERMAL ENERGY STORAGE THROUGH MELTING OF A COMMERCIAL PHASE-CHANGE MATERIAL IN A HORIZONTAL CYLINDRICAL ANNULUS

巻 25, 発行 3, 2018, pp. 211-237
DOI: 10.1615/JEnhHeatTransf.2018024676
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要約

A transient two-dimensional numerical model was developed to investigate the melting characteristics of an impure phase-change material (PCM) embedded between two concentric circular horizontal cylinders. The modeled transport equations were suitably nondimensionalized and were solved numerically in their primitive variables form on a staggered grid arrangement employing a control-volume finite difference method. The selected PCM melts over a temperature range. To easily account for the latter aspect in the model, an enthalpy-porosity–based fixed grid scheme was used to solve the convection-diffusion mushy region phase-change problem. The inner cylindrical tube was heated to a constant temperature by a heat transfer fluid while the outer tube was insulated. Timewise evolutions of the temperature distributions are presented. Various quantities such as the average Nusselt number over the inner tube surface, the total melt fraction, and the total cumulative stored energy, all as a function of the melting time, are reported for three inner wall temperatures and for an initially saturated solid PCM as well as for a subcooled condition of 10°C of the PCM. The predicted results show that the melting rate increases rapidly up to the melting time of about 41.18 min. After this time the melting rate increases but at a considerably slower rate. The storage of thermal energy increases with the increase of the inner wall temperature and initial temperature of the solid PCM. The energy charged is greatly influenced by the change of the inner tube wall temperature compared to the change of the initial solid PCM temperature.

によって引用された
  1. Gortych M., Lipnicki Z., Weigand B., An experimental and theoretical study of the solidification process of phase change materials in a horizontal annular enclosure, Applied Thermal Engineering, 161, 2019. Crossref

  2. Hasan Tonny Tabassum Mainul, Begum Latifa, Thermal Energy Storage Through Melting of a Commercial Phase Change Material in an Annulus with Radially Divergent Longitudinal Fins, International Journal of Thermofluid Science and Technology, 7, 1, 2020. Crossref

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