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Performance Analysis of Heat Sinks With Phase-Change Materials Subjected to Transient and Cyclic Heating

Saha, Sandip Kumar and Dutta, Pradip (2015) Performance Analysis of Heat Sinks With Phase-Change Materials Subjected to Transient and Cyclic Heating. In: HEAT TRANSFER ENGINEERING, 36 (16). pp. 1349-1359.

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Official URL: http://dx.doi.org/10.1080/01457632.2015.1003714

Abstract

Phase-change cooling technique is a suitable method for thermal management of electronic equipment subjected to transient or cyclic heat loads. The thermal performance of a phase-change based heat sink under cyclic heat load depends on several design parameters, namely, applied heat flux, cooling heat transfer coefficient, thermophysical properties of phase-change materials (PCMs), and physical dimensions of phase-change storage system during melting and freezing processes. A one-dimensional conduction heat transfer model is formulated to evaluate the effectiveness of preliminary design of practical PCM-based energy storage units. In this model, the phase-change process of the PCM is divided into melting and solidification subprocesses, for which separate equations are written. The equations are solved sequentially and an explicit closed-form solution is obtained. The efficacy of analytical model is estimated by comparing with a finite-volume-based numerical solution for both transient and cyclic heat loads.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the TAYLOR & FRANCIS INC, 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
Keywords: THERMAL-CONDUCTIVITY ENHANCEMENT; LATENT-HEAT; STORAGE; MANAGEMENT; MOTION
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Id for Latest eprints
Date Deposited: 28 Apr 2015 07:03
Last Modified: 28 Apr 2015 07:03
URI: http://eprints.iisc.ac.in/id/eprint/51413

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