Thermo-physical stability of fatty acid eutectic mixtures subjected to accelerated aging for thermal energy storage (TES) application

Hadi Fauzi, Hendrik S C Metselaar, T.m. Indra Mahlia, Mahyar Silakhori

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The thermo-physical stability of fatty acids eutectic mixtures subjected to accelerated number of melting/solidification processes has been identified using thermal cycling test in this study. Myristic acid/palmitic acid (MA/PA) (70/30, wt.%) and myristic acid/palmitic acid/sodium stearate (MA/PA/SS) (70/30/5, wt.%) were selected as eutectic phase change materials (PCMs) to evaluate their stability of phase transition temperature, latent heat of fusion, chemical structure, and volume changes after 200, 500, 1000, and 1500 thermal cycles. The thermal properties of each eutectic PCMs measured by differential scanning calorimetric (DSC) indicated the phase transition temperature and latent heat of fusion values of MA/PA/SS has a smallest changes after 1500 thermal cycles than MA/PA eutectic mixture. MA/PA/SS also has a better chemical structure stability and smaller volume change which is 1.2%, compared to MA/PA with a volume change of 1.6% after 1500 cycles. Therefore, it is concluded that the MA/PA/SS eutectic mixture is suitable for use as a phase change material in thermal energy storage (TES) such as solar water heating and solar space heating applications.

Original languageEnglish
Pages (from-to)328-334
Number of pages7
JournalApplied Thermal Engineering
Volume66
Issue number1-2
DOIs
Publication statusPublished - 01 May 2014

Fingerprint

Palmitic acid
Thermal energy
Fatty acids
Energy storage
Eutectics
Aging of materials
Acids
Phase change materials
Latent heat
Superconducting transition temperature
Fusion reactions
Phase transitions
Solar heating
Space heating
Thermal cycling
Solidification
Melting
Thermodynamic properties
Sodium
Scanning

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

Cite this

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title = "Thermo-physical stability of fatty acid eutectic mixtures subjected to accelerated aging for thermal energy storage (TES) application",
abstract = "The thermo-physical stability of fatty acids eutectic mixtures subjected to accelerated number of melting/solidification processes has been identified using thermal cycling test in this study. Myristic acid/palmitic acid (MA/PA) (70/30, wt.{\%}) and myristic acid/palmitic acid/sodium stearate (MA/PA/SS) (70/30/5, wt.{\%}) were selected as eutectic phase change materials (PCMs) to evaluate their stability of phase transition temperature, latent heat of fusion, chemical structure, and volume changes after 200, 500, 1000, and 1500 thermal cycles. The thermal properties of each eutectic PCMs measured by differential scanning calorimetric (DSC) indicated the phase transition temperature and latent heat of fusion values of MA/PA/SS has a smallest changes after 1500 thermal cycles than MA/PA eutectic mixture. MA/PA/SS also has a better chemical structure stability and smaller volume change which is 1.2{\%}, compared to MA/PA with a volume change of 1.6{\%} after 1500 cycles. Therefore, it is concluded that the MA/PA/SS eutectic mixture is suitable for use as a phase change material in thermal energy storage (TES) such as solar water heating and solar space heating applications.",
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Thermo-physical stability of fatty acid eutectic mixtures subjected to accelerated aging for thermal energy storage (TES) application. / Fauzi, Hadi; Metselaar, Hendrik S C; Mahlia, T.m. Indra; Silakhori, Mahyar.

In: Applied Thermal Engineering, Vol. 66, No. 1-2, 01.05.2014, p. 328-334.

Research output: Contribution to journalArticle

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