Preparation and Thermal Performance of Methyl Palmitate and Lauric Acid Eutectic Mixture as Phase Change Material (PCM)

Abstract

A series of binary mixtures of Methyl Palmitate (MP) and Lauric Acid (LA) were prepared and investigated, aiming for potential phase change material (PCM) for thermal energy storage systems. The thermal analysis of the PCM binary mixtures was investigated by means of Differential Scanning Calorimetry (DSC). A theoretical and experimental determination of the eutectic mixture was established. The results indicated that the eutectic binary mixture of 60%MP and 40%LA has desirable properties of phase transition temperatures within the comfort temperature range (Tm = 25.6 °C, Tf = 20.2 °C) and high latent heat capacity (Î"Hm = 205.4 J/g, Î"Hf = 205.8 J/g). The paper experimentally studied the other important thermo-physical properties required for modelling and stimulating the PCM in any storage systems such as thermal conductivity, enthalpy curve, phase diagram, specific heat, thermal diffusivity, and density. The thermal stability test indicated that the eutectic mixture had reliable thermal performance upon thermal cycling. Based on all these results, the MP-LA eutectic mixture is a promising material for thermal energy storage.

Department(s)

Nuclear Engineering and Radiation Science

Research Center/Lab(s)

Center for High Performance Computing Research

Keywords and Phrases

Differential scanning calorimetry; Eutectics; Heat storage; Palmitic acid; Phase change materials; Phase diagrams; Saturated fatty acids; Specific heat; Storage (materials); Thermal conductivity; Thermal energy; Thermoanalysis, Comfort temperatures; Enthalpy curves; Eutectic mixture; Experimental determination; Methyl palmitate; Thermal energy storage systems; Thermal Performance; Thermo-physical property, Binary mixtures

International Standard Serial Number (ISSN)

2352-152X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Elsevier Ltd, All rights reserved.

Publication Date

01 Oct 2017

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