Author
Babak Kamkari
Other affiliations: Isfahan University of Technology, University of Tehran
Bio: Babak Kamkari is an academic researcher from Islamic Azad University. The author has contributed to research in topics: Phase-change material & Heat transfer. The author has an hindex of 10, co-authored 25 publications receiving 766 citations. Previous affiliations of Babak Kamkari include Isfahan University of Technology & University of Tehran.
Topics: Phase-change material, Heat transfer, Fin, Enclosure, Heat exchanger
Papers
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TL;DR: In this article, phase change material (PCM) melting in a transparent rectangular enclosure with and without horizontal partial fins was performed with wall temperatures of 55, 60 and 70°C.
258 citations
TL;DR: In this article, the authors investigated the dynamic thermal behavior of phase change material (PCM) melting in a rectangular enclosure at various inclination angles and found that the inclination has a significant effect on the formation of natural convection currents and consequently on the heat transfer rate and melting time of the PCM.
236 citations
TL;DR: In this paper, the melting of lauric acid in a rectangular thermal storage unit heated from one side was studied and an experimental effort was made to visualize temperature field and melt front evolution during solid-liquid phase change process.
179 citations
TL;DR: In this paper, the melting process of phase change materials (PCMs) in side-heated enclosures with different numbers of fins was evaluated for inclination angles of 90° (vertical), 45° and 0° (horizontal).
124 citations
TL;DR: In this article, the effect of the inclination angle of finned enclosures on the development of buoyancy-driven convection flows is investigated, and the results showed that the melting time reduces by decreasing the inclination angles of the enclosure due to the intensification of the natural convection flow and increase in the number of vortices in the liquid PCM.
108 citations
Cited by
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01 Jan 1997
TL;DR: In this article, the spectral ratio between horizontal and vertical components (H/V ratio) of microtremors measured at the ground surface has been used to estimate fundamental periods and amplification factors of a site, although this technique lacks theoretical background.
Abstract:
The spectral ratio between horizontal and vertical components (H/V ratio) of microtremors measured at the ground surface has been used to estimate fundamental periods and amplification factors of a site, although this technique lacks theoretical background. The aim of this article is to formulate the H/V technique in terms of the characteristics of Rayleigh and Love waves, and to contribute to improve the technique. The improvement includes use of not only peaks but also troughs in the H/V ratio for reliable estimation of the period and use of a newly proposed smoothing function for better estimation of the amplification factor. The formulation leads to a simple formula for the amplification factor expressed with the H/V ratio. With microtremor data measured at 546 junior high schools in 23 wards of Tokyo, the improved technique is applied to mapping site periods and amplification factors in the area.
1,130 citations
TL;DR: In this article, the authors focused on the classification of various paraffins and salt hydrates, and provided an understanding on how to maximize thermal utilization of PCM and how to improve the phase transition rate, thermal conductivity, latent heat storage capacity and thermo-physical stability.
484 citations
TL;DR: In this paper, the phase change heat transfer characteristics of composite phase change material (PCM) were investigated, and the experimental results were compared with the numerical results obtained by the two-temperature energy model.
340 citations
293 citations
TL;DR: In this article, phase change material (PCM) melting in a transparent rectangular enclosure with and without horizontal partial fins was performed with wall temperatures of 55, 60 and 70°C.
258 citations