Preparation and properties of gypsum based energy storage materials with capric acid–palmitic acid/expanded perlite composite PCM

Abstract Phase change materials (PCMs) have been widely applied to develop building materials with high thermal energy storage capacity. In this study, the capric acid–palmitic acid (CA–PA)/expanded perlite (EP) composite PCM was prepared using vacuum impregnation method and the thermal-regulated gypsum boards were fabricated by adding the prepared composite PCM. Scanning electron microscope images revealed that the CA–PA eutectic mixture was uniformly distributed in pores of EP and the CA–PA/EP composite PCM has a little effect on the interface gypsum crystals growth. Differential scanning calorimeter results showed that the melting temperature range of the composite PCM was 24.1–31 °C and the latent heat was 88.39 J g−1. The composite PCM had a good chemical stability by surveying the chemical characterization of the composite PCM. Furthermore, the heat transfer property, thermal conductivity, bending and compressive strength were also tested. The results indicated that the higher the composite PCM volume content, the smaller the thermal conductivity of the gypsum board and the lower the temperature fluctuation in the cubicle system. The bending strength and compressive strength reduced gradually with an increase of the volume fraction of the composite PCM.

[1]  Zia Ud Din,et al.  Phase change material (PCM) storage for free cooling of buildings—A review , 2013 .

[2]  Teuku Meurah Indra Mahlia,et al.  Thermo-physical stability of fatty acid eutectic mixtures subjected to accelerated aging for thermal energy storage (TES) application , 2014 .

[3]  Changmei Jiao,et al.  Preparation and properties of lauric acid–stearic acid/expanded perlite composite as phase change materials for thermal energy storage , 2012 .

[4]  Teuku Meurah Indra Mahlia,et al.  Phase change material: Optimizing the thermal properties and thermal conductivity of myristic acid/palmitic acid eutectic mixture with acid-based surfactants , 2013 .

[5]  D. A. Neeper,et al.  Thermal dynamics of wallboard with latent heat storage , 2000 .

[6]  Ahmet Sarı,et al.  Thermal energy storage properties and thermal reliability of some fatty acid esters/building material composites as novel form-stable PCMs , 2012 .

[7]  Yanfeng Gao,et al.  Structures and thermal properties of fatty acid/expanded perlite composites as form-stable phase change materials , 2014 .

[8]  A. Sari,et al.  Thermal conductivity improvement of stearic acid using expanded graphite and carbon fiber for energy storage applications , 2007 .

[9]  Luisa F. Cabeza,et al.  Review on phase change materials (PCMs) for cold thermal energy storage applications , 2012 .

[10]  Romeo Bandinelli,et al.  A case study for energy issues of public buildings and utilities in a small municipality: Investigation of possible improvements and integration with renewables , 2012 .

[11]  A. Sari,et al.  Preparation, characterization and thermal properties of lauric acid/expanded perlite as novel form-stable composite phase change material , 2009 .

[12]  Ahmet Sarı,et al.  Preparation and characterization of fatty acid ester/building material composites for thermal energy storage in buildings , 2011 .

[13]  Luis Pérez-Lombard,et al.  A review on buildings energy consumption information , 2008 .

[14]  K. Pielichowski,et al.  Phase change materials for thermal energy storage , 2014 .

[15]  Luisa F. Cabeza,et al.  Review on thermal energy storage with phase change: materials, heat transfer analysis and applications , 2003 .

[16]  Arild Gustavsen,et al.  Phase Change Materials for Building Applications: A State-of-the-Art Review , 2010 .

[17]  K Darkwa,et al.  Simulation of an integrated PCM–wallboard system , 2003 .

[18]  Teuku Meurah Indra Mahlia,et al.  Sodium laurate enhancements the thermal properties and thermal conductivity of eutectic fatty acid as phase change material (PCM) , 2014 .

[19]  A. Sari.  Thermal reliability test of some fatty acids as PCMs used for solar thermal latent heat storage applications , 2003 .