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Technical Brief

Operational Time and Melt Fraction Based Optimization of a Phase Change Material Longitudinal Fin Heat Sink

[+] Author and Article Information
D. Jaya Krishna

Department of Mechanical Engineering,
National Institute of Technology,
Warangal 506004, India
e-mail: djayakrishna.iitm@gmail.com

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received December 1, 2017; final manuscript received July 17, 2018; published online August 31, 2018. Assoc. Editor: Ranganathan Kumar.

J. Thermal Sci. Eng. Appl 10(6), 064502 (Aug 31, 2018) (4 pages) Paper No: TSEA-17-1467; doi: 10.1115/1.4040988 History: Received December 01, 2017; Revised July 17, 2018

In the present study, the numerical investigation has been performed for a phase change material (PCM)-based longitudinal fin heat sink. The fins are taken as an integral part of the heat sink and are made up of aluminum. The PCM considered in the study is RT44HC. Heat is transferred to the heat sink through its horizontal base. In order to simulate the melting behavior of the PCM, volume of fluid model has been used. To attain the best configuration with optimum operational time, Taguchi method has been used followed by analysis of melt fraction and maximum base temperature. The optimized heat sink configuration with maximum operational time has been obtained at the critical temperatures of 54.8 °C, 63 °C, and 72.6 °C.

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References

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Figures

Grahic Jump Location
Fig. 3

Variation of (i) base temperature and (ii) melt fraction with time for different number of fins at HF = 35 mm and HB = 1 mm with fin thickness: (a) 2 mm, (b) 4 mm, and (c) 6 mm

Grahic Jump Location
Fig. 2

Comparison of the present study with Wang et al. [3] for (a) temperature and (b) melt fraction

Grahic Jump Location
Fig. 1

(a) Physical model and (b) computational domain

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