Publication: Thermal characteristic investigation of eutectic composite fatty acid as heat storage material for solar heating and cooling application
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Date
2018
Authors
Thaib R.
Fauzi H.
Ong H.C.
Rizal S.
Mahlia T.M.I.
Riza M.
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Physics Publishing
Abstract
A composite phase change material (CPCM) of myristic acid/palmitic acid/sodium myristate (MA/PA/SM) and of myristic acid/palmitic acid/sodium laurate (MA/PA/SL) were impregnated with purified damar gum as called Shorea Javanica (SJ) to improve the thermal conductivity of CPCM. The thermal properties, thermal conductivity, and thermal stability of both CPCM have investigated by using a Differential Scanning Calorimetry (DSC) thermal analysis, hot disc thermal conductivity analyzer, and Simultaneous Thermal Analyzer (STA), simultaneously. However, a chemical compatibility between both fatty acid eutectic mixtures and SJ in composite mixtures measured by Fourier Transform Infra-Red (FT-IR) spectrophotometer. The results were obtained that the thermal conductivity of MA/PA/SM/SJ and MA/PA/SL/SJ eutectic composite phase change material (CPCM) were improved by addition 3 wt.% and 2 wt.% of Shorea javanica (SJ), respectively, without occur a significant change on thermal properties of CPCM. Moreover, the absorbance spectrum of FT-IR shows the good compatibility of SJ with both MA/PA/SM and MA/PA/SL eutectic mixtures, the composite PCM also present good thermal performance and good thermal stability. Therefore, it can be noted that the purified Shorea Javanica proposed, the as high conductive material in this study was able to improve the thermal conductivity of eutectic PCM without any significant reduction on its thermo-physical and chemical properties and can be recommended as novelty composite phase change material for thermal energy storage application. � Published under licence by IOP Publishing Ltd.
Description
Conductive materials; Differential scanning calorimetry; Dye-sensitized solar cells; Eutectics; Heat storage; Mixtures; Phase change materials; Purification; Saturated fatty acids; Thermoanalysis; Thermodynamic stability; Absorbance spectrum; Chemical compatibility; Composite phase change materials; Fatty acid eutectics; Fourier transform infra reds; Physical and chemical properties; Solar heating and cooling; Thermal characteristics; Thermal conductivity